Agricultural Research Journal Suez Canal University /
[9000678.] رقم البحث : 9000678 -
Effect Of Feeding Two Different Complete Rations On Growth, Fattening, Nutrient Utilization And Efficiency In Buffalo Calves /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 30/12/2014
تاريخ قبول البحث 30/12/2014
عدد صفحات البحث 8
A. A. Osman
Buffalo, growth, fattening, complete rations
This study was conducted to evaluate the effect of feeding two different complete rations on growth and fattening performance of buffalo calves. Fifty male buffalo calves of approximately 14 months old and average weight of 255 kg (LBW) were divided into two similar groups. The control group fed ration consisted of conventional concentrate mixture (27% maize, 38% cotton seed meal, 30% wheat bran, 1% salt, 1% limestone, 0.5% minerals, 0.1% vitamins A+ D3+E, and 2.4% molasses) plus chopped rice straw. While the experimental group fed ration consisted of experimental concentrate mixture (50% maize, 20% cotton seed meal, 5% soybean meal, 20% wheat bran, 1% salt, 1% limestone, 0.5% minerals, 0.1% vitamins A+ D3+E, and 2.4% molasses) plus chopped ammoniated rice straw. The feeding level was 2.5 % of body weight for both groups during the fattening period. Slaughtering was carried out at the end of the fattening period. Results indicated that there were significant differences between rations regarding nutrients digestibility, with superior values on experimental ration. Also, experimental ration increased (P<0.01) average daily body gain and boneless meat and improved (P<0.01) feed conversion and as well as feeding costs.
Growth And Nutrient Utilization In Ossimi Lambs Fed On Cowpea Silage (Vigna Unguiculata) Or Whole Crop Corn Silage /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 30/12/2014
تاريخ قبول البحث 30/12/2014
عدد صفحات البحث 6
A. A. Osman
M. F. El-Sayes
Cowpea silage - whole corn silage - protein content - sheep - Digestibility - live body gain
The feasibility of using cowpea as summer legume to cover the great shortage in animal feedstuffs particularly during summer season was determined in comparison with corn as a common summer crop. This study was conducted on 12 Ossimi lambs in Ismailia Agricultural Research Station, Ismailia province. Animals were divided into two similar groups, whole crop corn silage and cowpea silage. The two experimental groups were supplemented with concentrate feed mixture at level 1% of live body weight. The chemical composition showed that crude protein content was higher (16.11% Vs 9.17%) and crude fiber content was lower (24.52% Vs 34.86%) in cowpea than whole crop corn. Silage quality of the two different materials indicated that whole crop corn and cowpea (with 5% molasses) produced good quality silage. Results of The nutritive value on dry matter basis, as TDN (59.78 Vs 62.3 for cowpea and corn silage) was not significantly different. But, the respective SV values were 44.21 Vs 41.44 and DCP 9.89 Vs 5.7 were significantly (P<0.05) higher with cowpea than whole crop corn silage. There was no significant difference regarding total body gain between lamb groups fed whole crop corn or cowpea silage. Therefore, it is noteworthy to indicate that cowpea can be used as an alternative feed source for finishing lambs during the summer months. It has outstanding potential for intercropping with various other crops such as maize to reach the potential production in protein and energy sources.
The Use of Some Organic and Bio-Fertilizers : / (a) Tree growth and leaf mineral content.
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 30/12/2014
تاريخ قبول البحث 30/12/2014
عدد صفحات البحث 9
M.D. EL-DEEB
Organic Fertilizers - Bio-Fertilizers - Olive Trees - Fertilization
The application of organic fertilizer materials (fish scrap, goat manure and olive pomace), application method (surface and trench) and biofertilizer (Nitrobein and Rhisobacterein) on growth and leaf mineral content of Manzanillo olive trees were investigated. Fish scrap fertilizer surpassed olive pomace and goat manure in enhancing tree growth and leaf mineral content Number of shoots per branch, shoot length, No. of leaves per shoot, leaf surface area and chlorophyll (a & b) were remarkably increased with fish scrap fertilizer applied in trenches and supported with Rhisobacterein. Also, leaf N, P, K, Ca, Mg, Fe, Mn and Zn content were enhanced with fish scrap fertilizer or olive pomace applied in trenches and providing with Rhizobacterein. In general, corporation of organic materials in trenches with biofertilizer resulted in synergistic effects on both growth and leaf nutrient content.
The Use of Some Organic and Bio-Fertilizers : / (b) Fruiting and fruit quality.
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 13
M.D. El-Deeb
Organic Fertilizers - Bio-Fertilizers.
The application of some organic fertilizers (fish scrap, goat manure and olive pomace) either superficially or in trenches and supporting with biofertilizer (Nitrobein or Rhizobacterein) for Manzanillo olive trees were studied. Fish scrap fertilizer gave the highest values of different parameters (blooming duration, No. of flowers per inflorescence, perfect flower per inflorescence, fruit set and yield per tree). Moreover, the three organic fertilizers failed to induce any significant effect on biennial bearing index. The application of organic fertilizer in trenches and enriching with Rhizobacterein increased the positive effect in this concern. Concerning fruit quality, fish scrap, surpassed olive pomace and goat manure in improving fruit quality whether the fruit physical properties (fruit weight, length, diameter, flesh weight, pit weight and moisture content) or fruit chemical properties (oil content, palmatic acid, archidic acid, oleic acid, linoleic acid, and linolenic acid), while the reverse was true with olive pomace or goat manure. The positive effect of organic fertilizer was increased with trench application and Rhizobacterein fertilization.
The present study was carried out to evaluate the effects of the lethal dose (LC50) of abamectin and two IGRs on cotton leafworm Spodoptera littoralis from the point of biochemical aspects. The relative susceptibility of two strains of the pest (laboratory and field strains) to three insecticides; i.e., diflubenzuron, pyriproxyfen and abamectin, was tested using dipping technique. Values of the LC50 were calculated for each compound. The tolerance ratio was determined on basis of the LC50 Key Words: Carbohydrate hydrolyzing enzymes, IGR, bioinsecticides, Spodoptera littoralis values of the two tested strains. Obtained results revealed that the field strain exhibited different degrees of tolerance towards the three tested insecticides which can be arranged as follows: pyriproxyfen (10.5 folds), diflubenzuron (5.5 folds) and abamectin (5.3 folds). The three tested compounds caused inhibitions of trehalase and invertase activities in treated larvae during all time intervals when compared to untreated insects with exception to invertase. An increase in its activity was obtained at the last time intervals after treatment with diflubenzuron and pyriproxyfen. Both diflubenzuron and pyriproxyfen caused an increase in the amylase activity, while abamectin caused a decrease in the enzyme activity.
The azadirachtin preparation, NeemAzal, was assessed against the Egyptian cotton leafworm Spodoptera littoralis to clarify its possible action on the food metabolism. Six concentration levels were prepared: 1250, 625, 312, 100, 50, and 10 ppm, and given to 2nd instar larvae with the food (Castor leaves). All metabolic parameters were estimated during the 2nd and 4th larval instars. A detrimental effect on the food consumption of 2nd instar larvae was found, irrespective of the NeemAzal concentration level. Almost all estimated metabolic parameters were less than those of control larvae and decreased as the conc. level was increased. Similarly, food cosumption of 4th instar larvae clarified a strong action of NeemAzal.
The present study was carried to evaluate the effects of the lethal dose (LC50) of abamectin and two IGRs on cotton leafworm Spodoptera littoralis (Boisd.) from the point of biochemical aspects. Also, is essential to know more about the mode of action of abamectin and to which related to, the chitin synthesis inhibitors or to the juvenoid compounds. The relative susceptibility of two strains (laboratory and field strains) of the strains to three insecticides: diflubenzuron, pyriproxyfen and abamectin, was tested using dipping technique. Values of the LC50 were calculated for each compound. The tolerance ratio was determined on basis of the LC50 values of the two tested strains. Obtained results revealed that the field strain exhibited different degrees of tolerance towards the three tested insecticides which can be arranged as follows: pyriproxyfen (10.5 folds), diflubenzuron (5.5 folds) and abamectin (5.3 folds) as compared to the laboratory strain. Chitinase activity decreased markedly after treating the insects with the LC50 of the three tested insecticides when compared to untreated insect. The reduction in the activity continued in case of diflubenzuron and abamectin. At the end of experiment the three tested compounds caused great elevations in chitinase activity. The three tested compounds gave the same trend of reducing phenoloxidase activity during the tested time intervals when compared to control
Nematicidal potentials of dry flowers belonging to certain plant species against meloidogyne incognita infecting tomato /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 7
Ashraf.I.Afia
M.A.Mostafa
Flower extracts - Nematicdal Potential - Tomato
In vitro treatments of fresh flower extracts of Delonix regia, Salvia farinaceae, Salvia splendens, Bauhinia variegata, Lantana camara, Pelargonium graveolens, Narium oleander, Hibiscus rosa-sinensis, Vinka rosa, Bougainvilla spp., canna indica, Tagetes erecta, Petunia hybrida, Tropaeolum nasturtium and Gerbera jamesonii , were significantly toxic to M. incognita larvae. Larval mortality was in direct proportion with concentration and time of expauser. In vivo treatments, number of formed galls and eggmasses on tomato roots were significantly reduced with the added dried chopped flowers at 1, 2, 3% w/w. The higher concentrations were phytotoxic to tomato plants.
Vertical Distribution Of Bemisia Tabaci (Genn.) Immatures And Their Parasitoids On Unsprayed And Sprayed Cotton Plants /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 13
A.H. Mesbah
R.A.Abo-Aiana
A. El-Zoghbey Amal
Bemisia tabaci - vertical distribution - Encarsia lutea
Field study of the vertical distribution of the cotton whitefly Bemisia tabaci (Genn.) immatures and their larval and pupal parasitoids was carried out at Sakha Agricultural Research Station, Kafr El-Sheikh Governorate, Egypt during 2000 and 2001 cotton seasons. The results revealed that the highest numbers of B. tabaci eggs and larvae were found on the upper level of the cotton plant during August in both seasons in the treated and untreated fields. The overall means of eggs and larvae on upper level were 166, 67, 496.2, 65.0/160 in2 in 2000 and 121.8, 37, 683 and 168.8/160 in2 Key words: Bemisia tabaci, vertical distribution, parasitism, Eretmocerus mundus, Encarsia lutea. in 2001 on untreated and treated cotton plants, respectively. They represented 59.1, 23.8, 82 and 10.7% in 2000, and 72.5, 22.1, 79.4 and 19.6% in 2001 of the total immatures on upper level on untreated and treated cotton plants, respectively. For pupae, the highest numbers were found on middle and lower levels during August and September. The overall means of pupae on middle and lower levels represented 67.1, 89.8, 39.2, 67.2% in 2000, and 73.4, 75.1, 57 and 71.6% in 2001 of the total immatures on untreated and treated cotton plants, respectively. Two parasitoid species, Eretmocerus mundus Merct. and Encarsia lutea (Mas.) were recorded on larvae and pupae of the pest. Percents of parasitism were lower in the treated field compared with the untreated one and were higher on B. tabaci pupae than on larvae in both fields. Highest rates of parasitism on larvae and pupae were recorded during August and September on the upper level of the untreated cotton plants, and on the middle level on treated ones. The overall means of parasitism on upper level on untreated plants were 16.4 and 23%, while they were 6.4 and 15.6% on treated one on middle in 2000 and 2001, respectively. The total parasitism percentages on untreated and treated cotton were 5 and 13% in 2000, and 12.7 and 18.3%, in 2001 respectively.
Suitability soybean cultivars for aspergillus flavus pathogenicity and aflatoxin production and some affecting factors /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 14
Arafa M. K. M
Heweidy M. A
Ismail I. A
Zohri A. A
soybean - Botany
Nine Aspergillus species were isolated from seeds of seven freshly harvested soybean cultivars. Aspergillus flavus and A. niger were the most frequent species from all tested cultivars. Seeds of H15L17 or Holladay soybean cultivars had the highest frequency of Aspergillus spp. while seeds of Giza 21 and Crawfored gave the lowest frequency. Only isolates of A. flavus and A. parasiticus could produce aflatoxin, however, other seven species could not. Artificial or natural inoculated seeds of soybean cultivars inoculated with spores of A. flavus caused the most decrease in seed germination and the highest increase in both seed invasion and/or aflatoxin production were found in the highly favourable of soybean cultivars (H15L17, Holladay and Toamo). In contrast, seeds of Giza 21, Giza35 and Giza 83 were partial resistance to establishment of A. flavus and aflatoxin accumulation. The cultivar (Crawford) was highly resistant without shown aflatoxin formation. The best vigor (mineral contents) was obtained from healthy seed of partially and highly unsuitable cultivars comparable to highly suitable cultivar for fungus infection. The results also revealed the absence of significant variation in either total nitrogen or magnesium contents of the suitable, partially and highly unsuitable cultivars. Calcium, potassium and total phosphate content of both testa and kernels of the susceptible seeds were low as compared to those partially and highly resistant seeds, and vice versa with sodium and zinc contents.
Survey and seasonal occurrence of aphid parasitoid species, particularly Aphidius matricariae, associated with cereal aphid species on wheat plants were carried out in different wheat regions in Egypt for the two seasons1998/99 and 1999/2000.The survey revealed the presence of the primary parasitoids species Aphidius matricariae Haliday, A. colemani Viereck, Diaeretiella rapae M’Intosh, Praon necans Mackauer, Ephedrus persicae Froggott., and Aphelinus spp.and the hyperparasitoid species; Alloxysta spp., and other cynipids, pteromalids (Asaphes and Pachyneuron), and Dendrocerus spp. associated with different cereal aphid species in wheat fields. Highest percentage of total primary parasitoid species (84%) and the lowest percentage of hyperparasitoid species (16%) were recorded at Sharkia Governorate, during season 1999/2000. Percentages of A. matricariae were higher during the first season than those of the second season. Among the surveyed parasitoids species, the total percentages of A. matricariae reached 42.8, 50.5, and 51.8%, in the first season, compared to 18.7, 14.2, and 6.1% in the second season at Sharkia, Beni-Suef, and Sohag Governorates, respectively
[9000697.] رقم البحث : 9000697 -
Control of root rots of peanut (arachis hypogaea l.) With saponin of different sources in comparison with a fungicide /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 8
Nagwa A.I. Osman
S.M. Ali
S.A. Omar
Root rots - saponin - damping-off
Synthetic lucernes saponin, when mixed PDA medium before sterilization (1 g/L), resulted in (47.8, 41.1, 34.4 and 16.7%) reductions in mycelial growth of Macrophomina phaseolina, Rhizoctonia solani, Sclerotium rolfsii and Fusarium solani, respectively, in vitro compared with the control treatments. Root-rot diseases incidence significantly decreased when peanut seeds were treated by the synthetic lucernes saponin (3 g/Kg seed) before sowing in potted soils infested with Macrophomina phaseolina or Rhizoctonia solani compared with the control. Whereas, other sources of saponin showed different variation in the diseases incidence. On the other hand, dressing peanut seeds with different sources of saponin or Rizolex-T, increased apparently healthy survived plants at harvest under field conditions of Behara Governorate during 2000 and 2001 seasons, since they decreased disease infection percentages. The highest reductions of pre-emergence damping-off diseases were observed when seeds were dressed with Rizolex-T, followed by the synthetic saponin. Also, the same results were recorded with root-rot diseases incidence. As saponin and Rizolex-T treatments were not effective in decreasing percentages of R. solani colonies in roots of peanut at harvest, the opposite reaction was recorded with Fusarium spp. and M. phaseolina in most cases. However, Rizolex-T followed by the synthetic saponin were generally the superior treatments against colonies of Fusarium spp.
Agricultural practices in relation to the major disease problems management of canola in Egypt /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 12
M.A. El-Korashy
cultural practices - white rust - Alternaria spots
Isolation trails from infected seedlings and canola plants showed symptoms of root rot, charcoal rot and wilt diseases yielded three soil born fungi. However, they were identified as Rhizoctonia solani (K?hn), Macrophomina phaseolina (Tassi) Goid. and Fusarium oxysporum (Schlecht). R. solani was the most frequently isolated fungus (45.4%) followed by F. oxysporum (29.7%) and M. phaseolina (24.9%). The impact of various cultural practices on economically important foliar diseases of canola (Brassica napus L.) in Ismailia Governorate was discussed during 2000-2001 and 2001-2002 seasons. The diseases considered were white rust (Albugo candida), Alternaria leaf, stem and fruit spots (Alternaria spp.), downy mildew (Peronospora parasitica), charcoal rot (Macrophomina phaseolina), wilt (Fusarium oxysporum) and root rot (Rhizoctonia solani). Studying the effect of inoculum density of the fungal propagules in the infested soil and crop amendments to soil, on soilborne diseases showed positive reaction against incidence of root rot, wilt and charcoal rot. Infection percentage increased by increasing the fungal propagules density of R. solani (the cause of root rot), F. oxysporum (the cause of wilt) and M. phaseolina (the cause of charcoal rot). Regarding the effects of soil amendments on charcoal rot, root rots and wilts diseases, adding soybean, sesame, maize, sunflower and peanut straw to soil one weak before planting greatly reduced infection by these diseases. The least disease incidences were observed with maize, soybean or sunflower straw. Planting on ridges decreased the severity of these diseases incidence and increased the seed yield. The 60-cm apart was better than 30-cm apart in this respect. Also, the 20-cm hill spacing decreased the diseases incidence as compared to 10 and 15-cm hill spacing. On the other hand, planting canola on Oct. 15 gave generally the least infection by diseases and increased the seed yield as compared with planting on Sept. 15 or Nov. 15 in two tested seasons. In contrast, the highest severity of the diseases incidence was recorded in sprinkler irrigation than surface one, since 15 min. irrigation every 48 hrs gave the less severity of the diseases incidence than 30 and 45min. Downy mildew, Alternaria spots, white rust and damping off were increased with increasing the level of nitrogen (N) fertilizers, while it decreased by increasing the level of phosphorus (P) and potassium (K) fertilizers. The seed yield was always increased by increasing K level. Generally, the best level of NPK fertilizer in minimizing these diseases and maximizing seed yield was (25-60-48) unit NPK. On the other hand, percentage of pre-emergence damping-off was decreased in depth 2-cm than 3 or 4-cm.
Field Evaluation Of Some Insecticides Against Pink And Spiny Bollworms On /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 12
Raslan¹, S. A. A
A. A. A. Aioub
M. E. A. Hegab
S. S. M. Hassanein
Bollworms, Control programs, Insecticides, Cotton plants, Natural enemies, Yield.
Three conventional insecticides i.e., S-fenvalerate (F), profenofos (P) and thiodicarb (T) were evaluated against both pink and spiny bollowroms on cotton plants using six different spray programmes, i.e, spraying each of the tested insecticides individually in one spray (F, P, T), spraying S-fenvalerate in the first spray followed by profenofos in the second (F+P), spraying profenofos in the first spray followed by thiodicarb in the second (P+T), and spraying S-fenvalerate in the first spray followed by profenofos in the second spray and then thiodicarb in the third (F+P+T). These programmes were started when percent of boll infestation reached 1,3,5,7 and 9% through two consecutive cotton growing seasons of 1998 and 1999. Morever the effect of the three spraying programmes (F, F+P and F+P+T) on the population reduction of some predaceous arthropod species were also investigated. The obtained results showed that F+P and F+P+T spray programmes seemed to be the most efficient against pink and spiny bollworms as cotton plants treated with them showed low percents of boll infestation with each and yielded high amounts of seed cotton. Cotton plants treated by different spray programmes at 5% boll infestation were less infested by both bollworms and gave the highest yield compared either with other tested levels or with check experiment. Consequently, F+P programm can be recommended to control pink and spiny bollworms in cotton fields and the third spray of the other program (F+P+T) can be excluded and this is very usefull for reducing control costs as well for increasing activity of parasitic and predaceous natural enemies of insects and true spiders. F, F+P and F+P+T programs had an adverse effect on the population of predaceous arthropods prevailing in cotton fields.
In Egypt, citrus is infested with different species of annual weeds such as jungle rice (Echinochloa colonum L. Link), green foxtail (Setaria viridis L. Beauv.) and black nightshade (Solanum nigrum). The present study was designed to determine the LC 25, LC50 and LC 90 of herbazed and gramoxone on the three weed species. Also, as measured by the reduction in the fresh, dry weights and length of weeds 7, 42 and 84 days post-treatment with herbicides which tested alone and in mixture during 2000 and 2001 seasons. The LC 90 values of herbazed and gramoxone were 114 and 103.1 g a.i./f. for E. colonum, 190.5 and 125.2 g a.i./f. for S. viridis and 154 and 165.0 g a.i./f. for S. nigrum. The LC 50 values of the same herbicides were 62 and 58.4 g a.i./f. for E. colonum, 104.3 and 67.7 g a.i./f. for S. viridis and 83 and 90.4 g a.i./f. for S. nigrum, respectively and LC 25 values were 31 and 29.9 g a.i./f. for E. colonum, 52 and 33.6 g a.i./f. for S. viridis and 42 and 46.2 g a.i./f. for S. nigrum of herbazed and gramoxone. The results showed that herbazed and gramoxone at the three rates caused significant effects on the tested weeds. The combination of the two herbicides gave excellent control of weeds compared with the single compound. The mixture of herbazed and gramoxone at the rates of LC 50 and LC 90 gave the best result 84 days after application, when the highest effect on fresh and dry weight of weeds in two seasons was recorded. All herbicides treatments demonstrated better control of S. nigrum than S. viridis and E. colonum. Insignificant effects were observed on fruit weight, juice fruit and vitamin C in citrus fruits after application of herbicides in both seasons.
Pathogenicity tests proved that, all the tested isolates were pathogenic to Xera bean cultivar. The isolate, which isolated from sweet melon roots, was the most pathogenic one, followed by the isolate obtained from bean roots and the isolate obtained from sesame stem. The temperature requirement studies of the fungus in vitro revealed that the most favorable temperatures for linear growth of the tested isolates were 25C0-35°C0. On the other hand, at 15C0, linear growth was low and differed with the different isolates. Three infested barley seeds /bean seed was enough inoculums to cause disease incidence. Sesame was highly susceptible host followed by Wheat and Maize, which were moderate, however Cantaloupe was less susceptible host. Fungal culture filtrate at different concentrations reduced percentage of seed germination and had harmful effect on rootlet length and rootlet dry weight. The fungus exhibited activity enzyme (pectin methyl esterase, polygalacturonase and cellulase) in culture filtrate and/or extract of infected bean plants.
Steinernema abbasi was isolated from soil in alfalfa fields in Sultanate of Oman, while the Egyptian population of S. abbasi was isolated from a soil sample from Ismailia Governorate. The occurrence of this isolate is reported for the first time in Egypt. The distinctness of Egyptian S. abbasi in comparison with populations of S. scapterisci, S. carpocapsae, S. riobravis, S. kushidai and original S. abbas diagnostic characters include the length of the infective stage juveniles, the ratio E (distance from the head to the excretory pore divided by the tail length). The Shape and the length of spicules and gubernaculum and absence of a tail projection in the male. Morphological examination indicateded that third-stage infective juveniles, males and females of this isolate have almost the same morphological and morphometric characters as those of the original description.
In the present study, prepupae of the red palm weevil Rhynchophorus ferrugineus were topically treated with a dose of 1.0, 0.1 or 0.01 ?g Lufenuron or Diofenolan/insect. The total carbohydrate, protein, and lipid body content were determined during the pupal stage. The lowest dose of Lufenuron or Diofenolan caused a gradual decrease in carbohydrate content, but the highest and medium doses induced a reciprocal V-shaped pattern throughout the pupal life. The higher two doses of Diofenolan, and all dose-levels of Lufenuron, have induced such trend in protein content of pupae. The present results indicate a prominent suppressive effect on protein content of Lufnuron than of Diofenolan. In case of lipids, the two higher doses of each acylurea have suppressed, and then stimulated, the lipid content throughout the pupal life.
Effect Of Some Soil Amendments On Chemical Properties Of Saline Alkali Soil /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 9
D. S. DARWISH
Soil Amendments - Alkali Soil
Two filed experiments were carried out at Sanhour and Rahil farms Fayoum Governorate to evaluate (the influence of some soil amendments) either gypsum or sulphur, on some chemical properties of saline alkali soils. The treatments of soil amendments were applied at rate of 0 and 100% gypsum requirement, while were added at rate of 100% sulphur requirement with leaching after using subsoiling tillage. Nitrogen was added as anhydrous ammonia (82%N) by soil injection at three levels 80,100 and 120kg N/ fed. At the end of experiments soil sample from each plot was taken to determine EC, pH, soluble ions and exchangeable cation. The main results of this study could be summarized as follows: 1. The values of EC were slightly decreased as results of adding soil amendments either gypsum or sulphur to saline alkali soil during the two seasons. 2. The addition of soil amendments to saline alkali soil under subsoiling tillage increased the amount of salts removed from the soil by leaching process. It can be noticed a slight decrease in soil salinity which was accompanied by a decrease in soil pH, soluble sodium, soluble chloride, exchangeable sodium and ESP as compared with untreated soil. In contrary, soluble and exchangeable calcium were increased.
Nitrification Of Nitrogen Fertilizers Under Saline Condition And Organic Matter Supplementation. /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 9
R. M.El-Shahawy
K. M.Atalla
Salinity, organic matter, nitrification and nitrogen fertilizers
A laboratory experiment was conducted to study the effect of diluted Karoon lake water at Fayoum on nitrification of ammonium sulphate and urea fertilizers in the absence or presence of organic matter. Increased salinity delayed, suppressed or inhibited nitrification of both fertilizers. Ammonification of urea seemed to be independent of salinity. Nitrification, generally, was sensitive to salinity. In non-saline soil addition of narrow C/N ratio organic matter (Clover) enhanced ammonification and nitrification while wide C/N ratio ones (wheat straw) encouraged immobilization of mineral nitrogen. While salinity in presence of the two organic supplements, negatively affected ammonification, subsequent nitrification and even the immobilization process. Supplementing mineral fertilizer nitrogen with organic matter variably alleviated the adverse effect of salinity on biological nitrogen transformations in soil.
An experiment for mature composting organic wastes was carried out at the farm of the Faculty of Agriculture, Suez Canal University, Ismailia Governorate. Sewage sludge (SS) from the Wastewater Treatment Plant at Serabium, Ismailia, was composted individually or mixed with rice straw (RS), town refuse (TR) or poultry manure (PM) or their mixtures, on equal weight basis as follows: SS, SS + RS, SS + TR, SS + PM, SS +RS + TR, SS + RS + PM, SS + TR + PM and SS + RS + TR + PM. Mixtures of the different composts were regularly mixed in elongated piles 5 m long, 1 m high and 1 m wide. Total bacteria, fungi and actinomycets were counted, beside total C, cummulative decomposed C and N, and C02 evolution rate were recorded at various composting stages (0, 1, 3, 7, 15, 30 and 45 days). Data for all composting treatments indicated that microbial counts were gradually increased by increasing composting period till the 7th day and then declined till the 45th day. At all composting periods, the highest microbial counts were obtained for SS + PM mixture while the lowest counts were obtained for SS + RS mixture. Singnificantly, total C and C/N ratio decreased and cummulative decomposed C and total N increased as the composting period increased till the day 45. Generally, CO2 evolution rate was slightly increased to reach its maximum for all mixtures as composting period increased to the 3rd day then, it significantly decreased till the 45th day. Lowest CO2 evolution rate value was obtained for the individual composted SS while the highest value was obtained for the composted SS+PM mixture at all intervals. Daily decline rate in C/N ratio decreased by increasing composting period, for all composted mixtures.
Evaluation Of Some Introduced Olive Cultivars Under North Sinai Conditions-Egypt : /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 01/01/2015
تاريخ قبول البحث 01/01/2015
عدد صفحات البحث 15
M.D. El-Deeb
M.M. Sourour
A.M. Hussein
U.H. El-Gammal
Olive Cultivars, North Sinai-Egypt.
Nine olive cultivars grown under Sinai conditions were evaluated at El-Maghara Experimental Station. Cultivars used were Manzanillo, Ascolano, Arebquina, Chemlali, Coratina, Corregoilo, Frantoio, Mission and Picual. Different cultivars were significantly varied in tree growth, flowering and fruiting. Chemlali trees were the tallest ones with the largest top diameter, higher No. of panicles/shoots and high fruit set. Besides, the highest yield was obtained by Chemlali, Picual, Corregoilo, and Manzanillo, respectively, while the reduction in the tendency towards alternate of bearing was recorded by Corregoilo, and Chemlali trees. The highest values of physical parameters (fruit weight, length, diameter, and flesh thickness were found with Ascolano, while the lowest ones were recorded on Arebquina, and Chemlali,. The highest values of oil content and proteins were recorded by Chemlali, Arebquina and Picual, cvs., respectively, while the lowest ones came from Manzanillo and Ascolano . Generally, the important commercial characteristics such as yield, rgular bearing and some fruit properties were obtained from Picual, Chemlali, Manzanillo and Ascolano olive cultivars.
The primary objective of this paper is to develop a computer-based diagnostic expert system that can be used in the diagnosis and treatment of mango diseases. In other words developing our expert system is to diagnose mango disorders and advice the user on the suitable treatment of any disorder taking into consideration the abnormal color, shape, and status of the different parts of the mango tree such as the leaves, the stem, buds, flowers, fruits and roots. The mechanism of this Expert System is based on acquiring cases from domain experts and generating a confirm model that is used to create four models; uncertainty model, treatment model, image model, and explanation model. The Mango Diseases Diagnosis and Treatment Expert System (MDDTES) is implemented using SICStus Objects and KROL programming language
Nineteen olive cultivars grown under Sinai condition were evaluated at El-Sheikh Zuwayid Experimental Station Sinai, Egypt. Cultivars used were Manzanillo, Aswad Lybias, Nabali Mohassan, Karidelya, Itrana, Jabaa, Coratina, Jolit, Conservollia, Bell de Spagna, Techernuola, Nabali Saadeh, Chiperssino, Tanch, Picholine, Sorany, Kaissy, Douaibly and Mawi Abo Shoka. Different cultivars are significantly varied with regard to tree growth, flowering and fruiting. In addition, they differed from year to another in their productivity. Generally, shoot length was significantly the tallest in Coratina, and Douaibly trees, while Itrana, Chiperssino, and Conservollia cvs. had higher trunk diameter. However, the highest tree height was recorded by Chiperssino, and Conservollia. Techernuola and Coratina gave the highest leaf area in both years. Overall, Aswad Lybia recorded the lowest values in this concern. As for the percentage of sex expression, Kaissy, Bella di Spagna and Tanch, were the highest in both seasons, while Picholine and Bella di Spagna, gave the highest No. of axis per inflorescence, but Coratina, Conservollia and Bella di Spagna had the longest inflorescence length. The highest yield came from Conservollia, Tanch and Coratina, cvs., while the reduction in the tendency towards alternation of bearing was recorded by Techernuola and Conservollia cultivars. Concerning fruit weight, flesh weight and pit weight, Itrana and Tanch were the highest in this respect. while oil content was significantly higher in Carotina, Karidalya and tanch cvs those other ones. Generally, the important commercial characteristics such as yield, regular bearing, and some fruit properties were obtained from Tanch, Conservollia, Cheperssiono Itrana and Manzanillo cvs.
Post-Weaning Body And Transverse Chest Length Measures /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 11/01/2015
تاريخ قبول البحث 11/01/2015
عدد صفحات البحث 10
E.G Ahmed
Rabbit crossing, body length, transverse chest length, direct and maternal additive effect.
Data on 59! weaning rabbits which consists of 314 straight-bred and 277 cross-bred individuals, produced through a crossbreeding experiment, from two breeds, one exotic, New-Zealand White (NZW) and local breed. Baladi-Red (BR) as well as their reciprocal crosses. The study aimed at the evaluation of the heterotic and crossbreeding effects (i.e. Additive Direct and Maternal) of biweekly progeny thigh (hip) length (TL) and hind leg length (HL) measures from (weaning) at 6 weeks up to 12 weeks of age, as well as the estimation of the non-genetic factors affecting these traits. Effect of month of birth (MOB) on TL demonstrated significance at 8 and 10 weeks of age and furthermore at 8,10 and 12 weeks of age for HL trait. Breed group affected significantly TL at 6 and 8 weeks of age whereas at 6, 8 and 12 weeks of age for HL measures. Feed type had significant effect on TL and HL at 10 and 12 weeks of age. Parity affect was significant on HL trait at 10’11 week of age only. Moreover, sex proved significant effect onlyfor HL trait at 6’11 week of age. The results showed that average regression coefficients of the studied traits (i.e. TL and HL) on their age respective hody weight (BW) were highly significant at all ages considered. as well as partial regressions within BG at 8 weeks of age for TL and at 10 weeks of age for HL. However, the partial regressions on Utter size at birth (LSB) affected significantly HL at 8’h week of age. The positive and significant ’effects were detected for Values of direct heterosis (H’) at 8’h week of age for TL measures. Positive Direct additive effects for NZW was shown at 8, 10 and 12 weeks of age for TL, though significance was detected merely at 8 weeks of age whilst were significantly negative at 6, 8 and 12 weeks of age for HL. Maternal NZW additive effect (Gm) on TL and HL measures was positive at 6 and 12 weeks of age for TL and 6, 8 and la weeks of age for HL measures. However significant Gm effects were detected at the 6 and 8 weeks of age for TL meanwhile at 6, 8 and 10 weeks of age for HL.
Genetic Effects On Thigh And Hind Leg Lengths Of Native Baladi Red Rabbits On Account Of Crossing With New Zealand White Rabbits /
تخصص البحث : General
Agricultural Research Journal Suez Canal University / / Volume 2 - 2003
تاريخ تقديم البحث 11/01/2015
تاريخ قبول البحث 11/01/2015
عدد صفحات البحث 9
E.G Ahmed
Rabbit crossing, thigh length, Hind Leg Length, direct and maternal additive effect.
Data on 59! weaning rabbits which consists of 314 straight-bred and 277 cross-bred individuals, produced through a crossbreeding experiment, from two breeds, one exotic, New-Zealand White (NZW) and local breed. Baladi-Red (BR) as well as their reciprocal crosses. The study aimed at the evaluation of the heterotic and crossbreeding effects (i.e. Additive Direct and Maternal) of biweekly progeny thigh (hip) length (TL) and hind leg length (HL) measures from (weaning) at 6 weeks up to 12 weeks of age, as well as the estimation of the non-genetic factors affecting these traits. Effect of month of birth (MOB) on TL demonstrated significance at 8 and 10 weeks of age and furthermore at 8,10 and 12 weeks of age for HL trait. Breed group affected significantly TL at 6 and 8 weeks of age whereas at 6, 8 and 12 weeks of age for HL measures. Feed type had significant effect on TL and HL at 10 and 12 weeks of age. Parity affect was significant on HL trait at 10’11 week of age only. Moreover, sex proved significant effect onlyfor HL trait at 6’11 week of age. The results showed that average regression coefficients of the studied traits (i.e. TL and HL) on their age respective hody weight (BW) were highly significant at all ages considered. as well as partial regressions within BG at 8 weeks of age for TL and at 10 weeks of age for HL. However, the partial regressions on Utter size at birth (LSB) affected significantly HL at 8’h week of age. The positive and significant ’effects were detected for Values of direct heterosis (H’) at 8’h week of age for TL measures. Positive Direct additive effects for NZW was shown at 8, 10 and 12 weeks of age for TL, though significance was detected merely at 8 weeks of age whilst were significantly negative at 6, 8 and 12 weeks of age for HL. Maternal NZW additive effect (Gm) on TL and HL measures was positive at 6 and 12 weeks of age for TL and 6, 8 and la weeks of age for HL measures. However significant Gm effects were detected at the 6 and 8 weeks of age for TL meanwhile at 6, 8 and 10 weeks of age for HL.
جميع البيانات التي يتم تسجيلها على النظام هي ملك للجهة صاحبة هذه البيانات
لا يتم الاطلاع على هذه البيانات من قبل مهندسي المركز إلا للضرورة القصوى ولغرض الدعم الفني وبالاتفاق مع الجهة صاحبة البيانات شفوياً أو كتابياً
لا يتم إعطاء أي بيان من بيانات النظام لأي فرد او جهة فرعية تنتمي للجهة صاحبة البيانات او لأي جهة أخرى إلا بموافقة كتابية من الجهة صاحبة البيانات
يمكن استخدام البيانات المسجلة على النظام بهدف عمل إحصائيات يستفاد منها فى قياس اداء النظام وكفاءة استخدامه من قبل مستخدميه
يتم تأمين جميع البيانات الخاصة بالنظام من خلال تأمين الحاسب الخادم الذي يستضيف البيانات ومن خلال تأمين انتقال البيانات بين جهاز المستخدم والحاسب الخادم وكذلك تأمين واجهة النظام التي يستخدمها المستخدم
كل مستخدم للنظام مسئول مسئولية كاملة عن كلمة المرور الخاصة به وعليه اتخاذ كافة الاحتياطات الممكنة حتى لا يستطيع أى شخص آخر الحصول عليها
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