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Assiut Journal of Agricultural Sciences /
بيانات الدورية
أعداد قيد الطبع
اعداد الدورية
  Assiut Journal of Agricultural Sciences /
  
 

[9000888.] رقم البحث : 9000888 -
Half Sib Family selection for Population Improvement in Maize (Zea Mays L.) /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 29/10/2015
  تاريخ قبول البحث 01/11/2015
  عدد صفحات البحث 15
  يوسف خيرى انور ( yousef_khiry@yahoo.com - 01226313930 )
  محمد عبد المنعم المرشدي
  كمال عبدة خيرالله
  حمدي يوسف شحاتة الشربيني
  أشرف كمال مصطفى
  Additive genetic variance, dominance genetic variance, half sib, heritability.
  The main objectives of this investigation were to evaluate half–sib family selection for improving grain yield and earliness, estimate the genetic compo-nents of variance and heritability and calculate the expected and actual gain from selection after one cycle of reciprocal recurrent selection.
Results showed that additive genetic variance (?2A) for days to 50% silking, ear length, no. of rows/ear, no. of kernels/row and 100-kernel weight for half-sib families of Pop. B was higher than those of half- sib families of Pop. A. Domi-nance variance (?2D) had the important role in the inheritance of ear diameter and grain yield in the two populations. Results indicated that Pop A had accumulate genetic variance (?2G) more than Pop B for plant height, ear length, rows/ear, kernels/row, 100-kernel weight and grain yield. The average degree of domi-nance (?), indicated the presence of over dominance in Pop. A for ear height, ear length, ear diameter, 100-kernel weight and grain yield and partial dominance for no. of rows/ear. In Pop. B, the over-dominance was observed for plant height and grain yield and partial dominance for 100-kernel weight. Heritability estimates in broad and narrow sense for grain yield in Pop. A were 54.74 and 15.37%, respec-tively, while it was 64.28 and 8.21% in Pop B. Expected gain for grain yield (kg/plot) was 22.07% and 20.70% and actual gain was 4.14% and 4.49% for Pop. A and Pop. B, respectively.
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[9000890.] رقم البحث : 9000890 -
Isolation and Identification of Polar Lipids in Some Kind of Cheeses Using HPLC-ELSD /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 01/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 10
  يوسف خيرى انور ( 01226313930 )
  HPLC – ELSD, Polar lipids
  In this investigation polar lipids and its species were isolated and identified from different types of cheeses which divided into four category according to moisture contents (soft cheeses 50-70%), semi hard cheeses (40-50%), hard cheeses (30-40%) and very hard cheeses (less than 30%) using high performance liquid chromatography coupled with evaporative light scattering detector (HPLC-ELSD). The results revealed that the general means values of total polar lipids were 45.23, 84.05, 94.26 and 24.11 mg/100 of soft, semi hard cheese, hard cheese and very hard cheese, respectively.

[9000891.] رقم البحث : 9000891 -
Chemical Composition of Rural Dairy By- Products /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 01/11/2015
  تاريخ قبول البحث 02/11/2015
  عدد صفحات البحث 10
  يوسف خيرى انور ( 01226313930 )
  cheese whey; Rayeb milk; Buttermilk; Dairy by-products; Rural by-products.
  About 100 samples of rural house made dairy by- product namely; Whey, Buttermilk (churned milk, laban khad) and Rayeb milk were investigated for their chemical composition. It was found that the mean values (± standard devia-tion (SD)) for chemical composition of Whey were 0.133±0.046%, 0.849±0.299%, 9.46±3.75%, 0.385±0.23%,4.33±2.73%,9.28±3.28%, 9.67±3.25 %, 3.33±2.71%, 3.77±3.17%, 90.32±3.25% and 0.76±0.22%, for total nitrogen (T.N), total protein (T.P), protein / D.M,fat, fat /dry matter (D.M), solids not fat (S.N.F), total solids (T.S), salt, salt in serum, moisture and acidity, respectively. The mean values (±SD) for the chemical composition of Rayeb milk were 0.70±0.04%, 4.49±0.27%, 42.05±5.39%, 1.20±0.64%, 11.01±5.43%, 9.60±1.06%, 10.80±1.08%, 89.19±1.08% and 0.88±0.30%, for T.N,T.P,protein in D.M,fat,fat in D.M,S.N.F, T.S, moisture and acidity, respectively. And, the mean values (±SD) for the chemical composition of Buttermilk were 0.47±0.04%, 3.04±0.30%, 42.85±11.57%, 1.6±0.52%,14.86±7.66%,6.47±1.88%, 7.54±1.80%, 0.31±0.23%, 0.34±0.26%, 92.45±1.80% and 0.38±0.17% for acid-ity, for T.N, T.P, protein in D.M, fat, fat in D.M, S.N.F, T.S, salt, salt in serum, moisture and acidity, respectively.

[9000892.] رقم البحث : 9000892 -
Genetic Diversity in Wheat Genotypes Using Random Amplified Polymorphic DNA (RAPD) /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 20
  يوسف خيرى انور ( 01226313930 )
  wheat, RAPD, genetic diversity, PCR, varietal identification
  Genetic diversity among 75 wheat genotypes (66 hexaploids and 9
tetraploids) was studied using 6 RAPD primers. A total of 76 DNA bands were
generated by the 6 RAPD primers from all genotypes, of which 53 (70.23%)
were polymorphic. The total number of amplification products per primer ranged
from 6 (OPO06) to 16 (UBC03 and UBC09) with an average of 12.67 bands per
primer. The size of PCR products ranged from 1478bp (OPA01) to 91bp
(UBC03). A significant correlation (0.892, p<0.01) was observed between the
total number of bands and the number of polymorphic bands. The six primers
amplified 11 unique bands for specific genotypes that would prove to be highly
useful in genotype identification and designing the future breeding strategy. The
similarity coefficient values ranged from 0.68 to 1.00, indicating moderate to
high genetic similarityin tested loci among the wheat genotypes. The 75 wheat
genotypes were grouped into two major clusters within the dendrogram. Cluster I
had the tetraploid genotypes and the hexaploid genotypes were placed in cluster
II
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[9000893.] رقم البحث : 9000893 -
Acceleration of Ras Cheese Enzymes as Induced by Different Fruit Extract /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 02/11/2015
  عدد صفحات البحث 14
  يوسف خيرى انور ( 01226313930 )
  Acceleration, Ras cheese, Fruit slurry
  Four fruit slurry were carried out to accelerate Ras cheese ripening. The fruit slurry were (pineapple, carica papaya, Husk tomato and Morus) were added they were analyzed when fresh then periodically. every 15 days up to 90 days of ripening Total solids, Fat, Formol number, Acidity, Total nitrogen, Soluble nitro-gen, Non protein nitrogen, Total fatty acid were analyzed.
Organoleptic charactercitie were done by predicament panel team. Results were evaluated statically. The results clarified that the best result was obtained from cheese manufactured by (pineapple, carica papaya, Husk –Tomatillo, and Morus) respecbilty is the best agents to accelerate the ripening of ras cheeses is it since it grained better ripening indices and organolyptic characters after 30 days as compared to control.
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[9000894.] رقم البحث : 9000894 -
Factors Influencing Rootability of Dracaena Cuttings /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 11/11/2015
  عدد صفحات البحث 9
  يوسف خيرى انور ( 01226313930 )
  Propagation, Dracaena marginata, Rooting, IAA, IBA, NAA, Cutting type.
  Dracaena marginata, Lam. Cuttings (tip, middle and basal) were treated with certain growth regulators (IAA,IBA and NAA), each applied individually at 1000 ppm as a powder, beside control treatment to define the most effective combination of auxin and cutting types stimulating the rootability.
The highest percentage of rooted cuttings was resulted from IBA (73%) fol-lowed by IAA (46%) and NAA (32%). Tip-shoot cuttings showed the maximum rooting percentage (46%), while basal cuttings resulted in the minimum rooting percentage, however, middle cuttings appeared intermediate responses. Also, IBA produced higher number and shorter roots than IAA. Similarly, basal cut-tings produced the highest root number and formed the shortest roots.
Generally, tip-shoot cuttings treated with IBA 1000 ppm proved to be more effective treatment enhancing the rooting percentage (88%) and improving root characteristics.
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[9000895.] رقم البحث : 9000895 -
Physical characteristics During Fruit Growth of Three Pomegranate Cultivars /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 15
  يوسف خيرى انور ( 01226313930 )
  Pomegranate, Peel, Arils, Physical properties.
  In recent years, the pomegranate (Punica granatum L.) has acquired wide acceptance due to the growing evidence that consumption is associated with beneficial health properties. The objective of this study was to compare some physical characteristics (fruit, peel and arils weight – fruit length and diameter) of three pomegranate cultivars grown in Egypt namely as Manfalouty, Hejazy and Nab-El-Gamal. The results showed significant differences in all measured characteristics of the pomegranate cultivars (except of fruit length between culti-vars of each season).
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[9000896.] رقم البحث : 9000896 -
Effect of GA3, Urea and Yeast Spraying on Fruiting of Flame Seedless Grapevines under Sandy Soil Conditions /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 12
  يوسف خيرى انور ( 01226313930 )
  Growth regulators, GA3, urea, active dry yeast, grapevines, thinning.
  This investigation was carried out during three seasons i.e. 2010, 2011 and 2012 on Flame Seedless grapevines grown in sandy soil in El-Karnak vineyard for table grapes production, Luxor governorate, Egypt. Ten combined treatments of GA3, urea and active dry yeast spraying at various stage of berry development were evaluated. The experimental vines were arranged in a complete randomized design with three replications per treatment, two vines each. from the results of this investigation it could be concluded that spraying with GA3 seven times, once at pre-bloom (5 ppm), thrice at full-bloom (2.5, 5 and 7.5 ppm) and other thrice when the berry at (6 mm) pea stage (30, 30 and 20 ppm). As well as, combined spraying GA3 four times once at pre-bloom and thrice at full-bloom plus 0.4% active dry yeast when the berry at pea stage to obtain heavy and less compact cluster and hasten the ripening with fairly good Flame Seedless berries quality. In addition, it could be used urea and yeast instead of GA3 in grape production to overcome the adverse GA3 effects especially for colored cultivars.
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[9000897.] رقم البحث : 9000897 -
Effect of Some Growth Regulators Application on Fruit Growth and Ripening of Abbodi and Abiad Aswan Fig Cultivars /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 02/11/2015
  عدد صفحات البحث 13
  يوسف خيرى انور ( 01226313930 )
  Plant growth regulators, GA3, NAA, BA, Fig, Ficus carica.
  This investigation was carried out at the orchard of Faculty of Agriculture, Assuit University during 2012 and 2013 seasons with the objectives of: study the rules and the effects of some plant growth regulators (PGRs) namely gibberellic acid (GA3), benzyl amino-purine (BA), and naphthalene acetic acid (NAA) on the developmental changes on some physical properties as well as fruit ripening of Abbodi and Abiad Aswan fig fruits during its growth. Twelve trees (4 treatments x 3 replication) of both cvs. were used for this study. The PGRs were sprayed at the end of the first period of fruit growth. The result of this study could be summarized as follows:
- The fruit diameter of untreated fruits (control) significantly and very rapid increased during the first period (6 weeks) followed by slow increase for about 4 weeks (period II) and then it was rapidly increased again at the third period and took 7 weeks until maturity.
- Concerning the effect of the applied growth regulators on the diameter of fig fruits, it was found that, GA3 at 50 ppm and NAA at 25 ppm significantly increased the fruit diameter as compared with BA treatment at 40 ppm and untreated fruits during all developmental stages. While, the treated fruits with the three growth regulators had significantly smaller diameter comparing with untreated one at the maturity stage in both experimental seasons.
- The fruit weight and volume of both cultivars took approximately the same trend as diameter concerning the response of applied growth regulators during both studied seasons.
- GA3 treatment advanced fruit maturity by 4 weeks, on Abiad Aswan and 3 weeks on Abbodi cv. while NAA enhanced fruit maturity of Abiad Aswan cv. by 3 weeks and one week for Abbodi cv. earlier than the control.
Concerning BA treatment, it advanced fruit maturity by 2 weeks for Abiad Aswan cv. and one week for Abbodi cv. during the two experimental season.
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[9000898.] رقم البحث : 9000898 -
Effect of Nutritional and Functional Properties of Moringa Oleifera Leaves (MOL) on: / I. Semen Quality and Offspring Performance of New Zealand White (NZW) Bucks
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 15
  يوسف خيرى انور ( 01226313930 )
  Diet, Male Rabbits, Semen quality, Performance, Moringa Oleifera leaf
  The study aimed to assess the effects of feeding Moringa Oleifera leaves meal (MOL) on performance and semen quality of NZW Bucks at age 12 month for 3 months period. A total of 30 bucks, average body weight (3227 g ± 20.3), were distributed into 3 treatments (10 bucks/treatment). Dietary treatments ac-cording to MOL inoculation levels to basal diet were; 0% (control, T1), 4% (T2) and 8% (T3). Basal diet (control) was formulated to contain 17.9% crude protein and 2790 Kcal /kg DE and were formulated to meet all essential nutrient re-quirements of male rabbits. Semen was collected twice weekly for six weeks for assessment and furthermore bucks were allowed to mate with female NZW, re-ceived same MOL levels. Therefore, the performance of offspring were evaluated from weaning till 5 weeks periods. Results of semen quality, total volume and sperm concentration indicated that feeding bucks 4% or 8% MOL were not dif-ferent from the control group. However, same parameters were significantly higher (P<.05) in 4% MOL fed bucks (.93ml and 92.7x107, respectively) com-pared to those received 8% MOL (.66ml and 76.1x107, respectively). Motility was higher (P<.05) in 4% MOL compared to the control group (78.5 vs. 74.0%, respectively) but not to the 8% MOL fed bucks. No treatments effect was de-tected in semen abnormality rate. Furthermore, weekly semen collection time was significant (P<.05) without any consistent trend. No interaction effect be-tween treatments and frequent collection time was found. The results of Bucks’ offspring performance at 5 weeks- old revealed improved body weight, body weight gain and FCR (P<.05) in group fed 4% MOL (1493g, 1264g and 2.9) compared to the control (1388g, 1074g and 3.6), respectively. However, no dif-ferences were found in these parameters between T3 and either T1 or T2 groups. The interaction between treatments, weeks and sex revealed significant (P<.05) increased male body weights more than the females due to MOL supplementa-tion starts from week 2 till termination of the experiment, indicating positive ef-fect towards males. In conclusion, MOL could be incorporated at 4% without ad-verse effect for optimal reproductive efficiency and performance in male rabbits intended for breeding purpose and furthermore, for improving body weight of males offspring till marketing age.
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[9000899.] رقم البحث : 9000899 -
Impact of Some Light Sources on Growth Performance and Sexual Maturity of Female Japanese Quail /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 13
  يوسف خيرى انور ( 01226313930 )
  Quail – Light Source – Lamps – Sexual Maturity – Female.
  This study aimed to compare economically between the impact of three light sources on the growth performance of Japanese quail.
The experiment of this study lasted 56 days and included 126 one day old chicks divided in 3 groups X 3 replicates each of 4 males and 10 females. They were raised in battery cages under similar managerial conditions, subjected to light from 60 watt incandescent, 40-watt fluorescent and 26 watt saving lamps for 8 light hours/ daily with intensity of 14-16 Lux during the first three days and 4-6 Lux during the rest of the experiment. They were individually weighed every week, while the body weight gain (BWG) was calculated biweekly. The averages of female body weight (BW) and age at sexual maturity were determined. Simi-larly, the averages of feed consumption (FC) and feed conversion ration (FCR) were also determined.
At the end of the experiment, 6-fasted females were slaughtered and 6 blood samples per group were taken to determine some blood components and to estimate the carcass quality. The lighting costs included both of the power cost (kw/LE) and the value of the lamp depreciation, (lighting hours / life span of the lamp X lamp price LE).
The results revealed that:
1-The average BW of females exposed to light from fluorescent (FLU,T1) was significantly lighter at 2, 4, 6 and 8 weeks than those of the control (INC) and the saving lamps (T2). 2- The average Total BWG (204.76 g) in T1 (flu) de-creased significantly than those 214.61 and 216.85g of T2 and the control, re-spectively. 3- The least average FC (692.30 g) was recorded in T2 (saving) de-creasing significantly than those 712.60 and 721.47 g of T1 and the control, re-spectively. 4- The best average FCR (3.12) was recorded in T2 improving sig-nificantly than that 3.42 of T1 and insignificantly than 3.22 of the control. 5- The least average of females BW at sexual maturity (204.48 g) was found in T1 de-creasing significantly than those 212.42 and 220.04 g of T2 and the control, re-spectively. 6- The minimal age at sexual maturity was found in T2 (saving) de-creasing significantly than that of the control and T1 (flu). 7- The use of the sav-ing lamps minimized the lighting costs by 56.43% than that of control.
Taking in consideration the above mentioned advantages, it could be con-cluded that the use of saving lamp is highly recommended for raising Japanses Quail birds economically.

[9000900.] رقم البحث : 9000900 -
Effect of Bio, Nitrogen and Phosphorus Fertilizers on Growth, Yield and Yield Components of Sunflower Crop Grown in El-Kharga Oasis, New Valley /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 14
  يوسف خيرى انور ( 01226313930 )
  Sunflower Crop ,Bio, Nitrogen and Phosphorus Fertilizers
  Field experiment was conducted for two successive summer seasons of 2007/2008 and 2008/2009 at the Experimental Research Station of the Desert Research Center at El-Kharga Oasis, the New Valley governorate. The objective of this work was to study the effect of bio, nitrogen and phosphorus fertilizers on the growth, yield and yield components of sunflower crop.Results indicated that application of biofertilizer had significant effect on plant height, head diameter, 1000-seed weight, seed yield and oil% in seeds and oil yield respectively in the second growing season. Biofertilizer increased seed yield (kg/fed) and oil yield (kg/fed) by 11.0%, 12.0% and 16.6%, 14.0% over the control in the first and sec-ond growth seasons respectively. Nitrogen fertilization at rates of 30, 60 and 90 kg/fed, significantly resulted in increases in all studied parameters. Addition of nitrogen fertilizer at 90 kg N/fed gave the highest seed and oil yields in the two season when compared with 30 and 60 kg/fed. Results also showed that applica-tion of phosphorus at rates of 0, 15 and 45 P2O5 kg/fed were of highly significant influence on all studied triats.
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[9000901.] رقم البحث : 9000901 -
Seasonal Variations in Nutritive Value and Elemental Composition of Two Saltbush Plants Grown in Assiut, Egypt /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 17
  يوسف خيرى انور ( 01226313930 )
  Halophytes, Atriplex, Nutritive value, Elemental composition.
  Saltbush shrubs are halophytic plants found in many regions of the world, they are promising as forage sources, but their chemical composition varies dur-ing the seasons of the year. This study was conducted in Assiut, Egypt to investi-gate the nutritive value and chemical composition of quail saltbush (Atriplex len-tiformis) and old man saltbush (Atriplex nummularia) as affected by the seasonal variations. Composite samples of leaves and stems of each species were collected in the winter, spring, summer and autumn of 2013. The nutritive value and min-eral contents of the tested plants varied considerably during the year. Leaves had relatively low concentrations of phosphorus (P) and high concentrations of so-dium (Na), potassium (K), and chloride (Cl) during the summer season; however calcium (Ca) and magnesium (Mg) contents remained unaffected throughout the seasons. The crude protein in the leaves of A. nummularia and A. lentiformis was about 22 and 18%, while in the stems it was about 6.7 and 4.6% respectively. The tested saltbush plants are good as protein source during the winter. In that season of the year, the crude protein (CP) of the leaves of A. lentiformis and A. nummularia was increased by 32 and 26% respectively compared to the summer. The ash content of saltbush plants was increased by about 25% in the summer compared to the other seasons, while the moisture content remained unaffected during the winter, spring and autumn seasons and then declined by about 17% during the summer, this indicates that saltbush plants may be minimize their suc-culence moisture content during the summer to achieve osmotic adjustment.
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[9000902.] رقم البحث : 9000902 -
Effect of Alternative Furrow Irrigation and Potassium Fertilization on Sugarcane Yield /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 14
  يوسف خيرى انور ( 01226313930 )
  Actual evapotranspiration, Irrigation regime, Potassium fertilization, Sugarcane yield
  A field experiment was conducted at the Experimental Farm, El-Mattana, Agriculture Research Station, Luxor, Egypt during spring season of 2013 to de-termine the effects of water stress on sugarcane yield and its quality as well as its response to potassium application. The experiment was laid out in split-split plots design with three replicates. The main plots were used to express irrigation re-gimes (0.8, 1 and 1.2 of the cumulative pan evaporation, CPE). The split units were assigned for irrigation manners (all furrows and alternative furrows). Sub split plots were occupied by K levels (25, 50 and 75 Kg K2O/ fed). All the ex-perimental treatments were randomly distributed on the respective plots.
The actual evapotranspiration (ETa) values under alternative furrow irriga-tion treatments (5215 m3) were less than that under all irrigated furrow treatments (5764 m3) regardless to the effect of irrigation regime or potassium fertilization. The amounts of applied water were 3592.50, 4979.39 and 8134.33 m3/ fed for irrigation regime (CPE) of 0.8, 1 and 1.2, respectively. Irrigation efficiency (IE) was decreased as the percentage of soil moisture depletion increased (at 0.8 CPE). Normal irrigation with 1.2 CPE at 75 Kg K2O/ fed achieved the highest value of IE (86.16%) while the lowest value (57.52%) was recorded at normal irrigation with 0.8 CPE and 50 Kg K2O/ fed. The best treatment was alternative irrigated furrow at 1 CPE when fertilized by 75 Kg K2O / fed since it realized the highest CWUE (8.86 Kg cane /m3 and 1.1 Kg sugar/m3). Cane yield as well as juice purity and sugar concentration declined, resulting in decreased sugar yield as irrigation intervals was increased. Also, cane yield and its quality was in-creased by increasing potassium fertilization level.
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[9000903.] رقم البحث : 9000903 -
Nitrogen, P and K in Soils Amended with Organic Wastes and their Uptake by Corn and Wheat Plants /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 17
  يوسف خيرى انور ( 01226313930 )
  Organic wastes; N, P, and K release and uptake; corn and wheat plants; dry matter.
  Pot experiments were carried out in a completely randomized design in the screenhouse of Faculty of Agriculture, South Valley University, Egypt, to evalu-ate the application effects of different organic wastes (sewage sludge, filter mud cake, compost, filter mud cake-compost mixture and sewage sludge-compost mixture) at different levels (5, 15 and 30 ton/fed. on the release and availability of N, P and K in three different soils (clay, calcareous sandy, and sandy soils). Corn plants followed by wheat plants were grown during two successive seasons of summer 2011 and winter of 2011/2012.
Total Nitrogen (N), available phosphorus (P) and available potassium (K) in soils as well as plant dry matter and the uptake of these nutrients by plants were determined to evaluate the N, P and K released in the soil and their uptake by these plants.
The application of these organic wastes at different levels showed signifi-cant increases in N, P and K that were released in the studied soils as well as plant dry matter yield and the uptake of these nutrients by corn and wheat plants. In general, use of these investigated organic wastes at the level of 30 ton/fed. in these studied soils gave the best results.
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[9000904.] رقم البحث : 9000904 -
Validation of Reference Evapotranspiration Models Using Lysimeters Under Arid Climatic Conditions /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 19
  يوسف خيرى انور ( 01226313930 )
  ETo Models, Validation, Calibration, Lysimeter
  Efficient utilization of available water resources in the arid region of Egypt such as, The New Valley is crucial. Toward having a good and high efficient wa-ter management the determination of crop water requirement is appreciable. Many methods has been adopted to be used and needed to be validated. The ob-jectives of this study were to calibrate and validate some ETo models using lysimeter under the New Valley conditions. Estimation of accurate ETo under these climatic conditions was also considered. Nine drainage lysimeters were in-stalled, planted with alfalfa as a reference crop. Daily and monthly values of twelve ETo models were compared with Lys-ETo during February 1st 2013 to January 31st 2015. The comparison was first made using original constant values in each ETo model, then the selected models were calibrated as second step using data of first year through modified constant values involved in each model. In the last step, calibrated models were validated using both measured and estimated ETo data of second year.
The comparative study indicated that the original FAO-24 Radiation and Blaney-Criddle models gave the lowest values of RMSE and RRMSE as com-pared with Lys-ETo, they were 0.90 mm day-1 and 10.24% for FAO-24 Radiation and 1.37mm day-1 and 15.58% for Blaney-Criddle, respectively. Also, locally calibrated FAO-24 pan model was the best model and gave the excellent coincid-ing as compare with the Lys-ETo observations under the New Valley conditions.
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[9000905.] رقم البحث : 9000905 -
Evaluating the Groundwater Quality for Irrigation of the Western Limestone Plateau in Assuit Region, Egypt /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 02/11/2015
  عدد صفحات البحث 19
  يوسف خيرى انور ( 01226313930 )
  Limestone, groundwater quality, Eocene aquifer, irrigation purposes, Assiut
  The western desert of Egypt is an area of the natural extension for agricul-tural, industrial, and civil activities. The expansion requires a great demand for groundwater on the western limestone plateau in the central part of Egypt. Ten groundwater samples were collected from limestone Eocene aquifer wells located in the western desert, Assiut region.to evaluate the quality of these well waters for irrigation. The area under consideration lies between latitudes 27o 7’ 540” – 27o 34’ 474” N and longitudes 30o 39’ 487” – 30o 53’ 244”E. The chemical prop-erties of groundwater of the investigated aquifer wells were determined, such as, major ions, pH, EC, TDS, SAR, RSC, RSCB, SSP, magnesium hazard (MH), to-tal hardness (TH) and permeability index (PI). The concentration of the cations in the groundwater of the study area is in the order of Na+> Ca2+> Mg2+> K+ and that of the anions is in the order of Cl-> HCO32-> SO42- .Values of the groundwa-ter quality show that the water is suitable for the irrigation use, except the EC values of some wells that have a moderately saline water.
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[9000906.] رقم البحث : 9000906 -
Effect of Crop Sequences, Crop Residues, Sulfur Application and N-Fertilizer on Wheat Crop Grown on Sandy Calcareous Soils /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 02/11/2015
  عدد صفحات البحث 21
  يوسف خيرى انور ( 01226313930 )
  Sulfur Application , N-Fertilizer , Wheat Crop
  Under minimum soil tillage conditions a field experiment for four seasons (2009 and 2010) was conducted to detect the effect of integration between crop sequences and crop residues application as a soil management strategies, S-application and N- fertilizer levels on some crops grown on the sandy calcareous soil of Arab El-Awamer Experimental Station, Assiut governorate. Egypt. At the fifth growth season, during the winter of 2010/2011 the field experiment was completed and wheat field experiment with 3 replications in a split split plot de-sign was designed to study the response of wheat crop to the previous and contin-ued eight soil management treatments in main plots, rates of powder elemental S (zero and 300 kg S/fed every season) in the sub plots and mineral nitrogen fertil-izer levels (60 and 120 kg N/fed) in the sub sub plots. The eight soil management treatments in main plot were four different crop sequences with crop residues completely removed (-CR) or with crop residues incorporated in soil surface layer 0-25 cm (+CR). The different four sequences (depend on it’s inclusions from leg-ume crops) were:-
Sequence 1 = wheat - maize - wheat - maize - wheat (0% legume crops)
Sequence 2 = wheat - maize - clover - maize - wheat (25% legume crops)
Sequence 3 = wheat - maize - clover - peanut - wheat (50% legume crops)
Sequence 4 = wheat - peanut - clover - peanut - wheat (75% legume crops)
The obtained results showed that wheat growth, NP uptake at spiking expul-sion, yield and yield components were increased significantly due to different soil managements strategies (different crop sequences with or without crop residues) as compared with continuous cereal crop sequence with crop residues completely removed. Also, the treatment sequence 4 + CR caused increases in grain, straw and biological yield of wheat estimated by 78.8%, 55.1% and 63.0%, respectively. While, treatment sequence 3 + CR caused increases in grain, straw and biological yield estimated by 69.1%, 49.7% and 56.2%, respectively as compared with con-tinues cereal crop sequence 1 (control). Furthermore, the increase was recorded in wheat grain yield of treatment sequence 4 + CR was significant as compared with treatment sequence 3 + CR.
Sulfur application, at the rate of 300 kg/fed seasonally, induced significant improvement on wheat growth, NP uptakes at spiking expulsion, yield and yield components as compared with the zero S.
Nitrogen fertilizer levels at the rate of 120 kg N/fed, induced significant im-provement on wheat growth, NP uptake at spiking expulsion, yield and yield com-ponents as compared with 60 kg N/fed. Furthermore, the increases in grain yield, straw yield and biological yield were 12.2% 13.6% and 13.1%, respectively due to the rate of 120 kg N/ fed.
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[9000907.] رقم البحث : 9000907 -
Performance of Cowpea Grown in Different Soil Types Using Diverse Amendment of Phosphorus and Nitrogen Fertilizers /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 02/11/2015
  تاريخ قبول البحث 08/11/2015
  عدد صفحات البحث 12
  يوسف خيرى انور ( 01226313930 )
  clay loam soil, fertilization, loam sand soil, sand clay loam soil, seed yield.
  A field experiment was conducted during two successive summer seasons (1994 and 1995) to assess the crop performance of the locally-adapted cowpea cv. ’Cream 7’ as affected by soil type (clay loam, sand clay loam, and loam sand soil). Four application methods of P fertilizer (300 kg superphosphate/feddan, 15.5% P2O5) and two N starter treatments (45 kg N/fed., ammonium nitrate) were utilized in each soil type. The analysis of variance for the obtained data indicated that the dry-seed yield and 1000-seed weight had a consistent gradient elevation in loam sand, sand clay loam and clay loam soil types, respectively, whether or not ammonium nitrate starter fertilizer was used. However, there were substantial consistent increases for these traits in both loam sand and sand clay loam soil types with application of N starter fertilization. The dry-seed yield produced in loam sand soil was, generally, as high as 80 to 85 per cent of the seed yield pro-duced in the most productive soil type, i.e. clay loam. Greater number of nodules formed on roots of plants grown in clay loam and sand clay loam when no am-monium nitrate was applied. Under conditions of N fertilization, however, in-creased number of nodules was found in sand loam soil while reduction occurred in the other soil types. The weight of nodules was greater in sand clay loam which did not receive N fertilizers. Weight of nodules reduced with application of N to clay loam and sand clay loam while increased in sand loam making both sand clay loam and loam sand soil types similar. Broadcasting of the whole amount of P fertilizer during soil preparation or half of the amount during soil preparation and sidedressing the other half after seedling emergence and before the first irrigation tended to enhance plant growth and seed yield comparing with the other methods. However, its effects were inconsistent. It is suggested that cowpea, as being a tropical plant with adaptability to wide range of soil types, could be produced successfully in the new and reclaimed soil in Southern Valley region. Providing starter N fertilizer is recommended under such conditions.
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[9000908.] رقم البحث : 9000908 -
التعدي على الاراضى الزراعية ونهر النيل وأثارهما على الاقتصاد المصري / دراسة اقتصادية
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 04/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 11
  يوسف خيرى انور ( 01226313930 )
  التعدي على الأراضي الزراعية ,التعدي على نهر النيل
  مما لاشك فيه أن موردي الأرض والماء يعدا من العناصر الأساسية للإنتاج الزراعي ، فلا يمكن تصور وجود زراعة وإنتاج زراعي بدونهما ، وأي تدهور أو انخفاض في المتاح منهما كميا أو نوعيا سوف يؤثر بلا شك على إنتاج المجتمع من السلع والمنتجات الزراعية وخاصة الغذائية منها مما سيترتب عليه حدوث مشكلة غذائية بالمجتمع تنشا نتيجة عدم قدره الإنتاج المحلى للمجتمع على تلبية الاحتياجات المتزايدة لسكانه من الغذاء، الأمر الذي يؤثر بلا شك على الاستقرار السياسي والاقتصادي والاجتماعي بالمجتمع.
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[9000909.] رقم البحث : 9000909 -
دراسة اقتصادية لأهم العوامل المؤثرة على إنتاج واستهلاك الأسماك في مصر /
  قطاع الدراسات الزراعية / General
تخصص البحث : General
  Assiut Journal of Agricultural Sciences / / vol. 46, no. 2 - june 2015
  تاريخ تقديم البحث 04/11/2015
  تاريخ قبول البحث 05/11/2015
  عدد صفحات البحث 11
  يوسف خيرى انور ( 01226313930 )
  إنتاج واستهلاك الأسماك ,الإستهلاك السمكي
  يعتبر رفع معدل الإكتفاء الذاتي من الإنتاج المحلى وتقليل الاعتماد على الخارج وتحسين ميزان المدفوعات المصرى، أحد المحاور الأساسية فى سياسة الإصلاح التى بدأت مصر تطبيقها منذ الثمانينات، ومن هذا المنطلق إتجهت خطط التنمية فى مصر إلى رفع معدلات الإكتفاء الذاتى من إنتاج الغذاء من خلال الإستفادة الكاملة من الموارد المحلية المنتجة للغذاء. والموارد السمكية بشقيها سواء طبيعية أو مستزرعة تعتبر أحد الموارد الأساسية المنوط بها تحقيق إحدى جزئيات هذا الهدف القومى، حيثُ تعتبر الموارد السمكية من أهم الموارد التى يمكن الاعتماد عليها فى مواجهة الفجوة الغذائية المتزايدة بين الإنتاج والإستهلاك والتى نشأت بسبب انخفاض معدلات نمو الإنتاج من ناحية والتزايد المضطرد فى الإستهلاك من ناحية أخرى.
وتعتبر الأسماك من المصادر الغذائية الرئيسية الغنية بالبروتين الحيواني الرخيص ذو القيمة الغذائية العالية فضلاً على أن لحوم الأسماك تمثل حوالى 80% من وزنها الحى، فى حين تبلغ هذا النسبة حوالى 65% فى لحوم الدواجن، 54% فى لحوم الماشية كما أن قطاع الإنتاج السمكى يعتبر من القطاعات الرئيسية التى يمكن أن تساهم بشكل غير مباشر فى حل مشكلة الفجوة الغذائية من اللحوم الحمراء والدواجن.
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