الفهرس 
Material and methodsOnly 14 pages are availabe for public view
 |  | from | 226 |  |  |
| | | from | 226 | | |
Abstract
well as bulbs yield were obtained when Nand P was
included in the growth media at the first period
comparing with later one. On the other hand, minimum
effects were resulted in the case of Fe or micronutrients
treatments.
(3) The absence of N, P, Fe or micro-nutrients at any
stage of garlic plant growth decline both N concentration
and total content in different plant organs
specially for bulb. The most depressive occurred
when N itself was absent during all periods or at the
first period only. P and Fe or micro-nutrients followed
N in this respect. The application of P during
the first period of plant growth is very important for
normal N proportion distribution in garlic plant
organs, while the absence of Fe or micro-nutrients
during any stage troubled the accumulation proportion
of N in roots and sometimes leaves. The same results
were obtained on the effect of tested nutrients for
the concentration, total content and-percentage distribution
of phosphorus in different garlic plant
parts.
(4) The omission of other tested nutrients. The absence
of P and N appears to have the greatest effect on K
accumulation reduction in different plant parts than
the other tested nutrients.
(5) The absence of tested nutrients stimulated Ca concentration
in roots and leaves, Fe or micro-nutrients
absence during the second period of plant growth enhanced
the accumulation ofea in leaves as well as
bulbs, but decreased it in roots, N or P seemed to
have more effect in reducing the proportion accumulation
of Ca in leaves and roots when these elements
were absent at any period of garlic plant growth.
(6) The complete absence of P or Fe and micro-nutrients
reduced both the concentration and accumulation of Mg
in garlic plant organs, while N have the same results
when its absence occurred during the second period
only. The absence of any of tested nutrients during
the various periods disturb the proportion accumulation
of Mg in garlic plant parts.
(7) Absence of N during the first period and P or Fe during
all periods reduced the concentration of Fe in different
garlic plant parts. Total accumulation of Fe affected
by the absence of any nutrients during the periods,
the most depressive effects I when N was absent followed
by P and Fe or micro-nutrients. The reduction in Fe
proportion in leaves was observed when N was absent
during the second period, while all absence stimulated
higher Fe proportion in bulb at the end of plant ~.
(8) Absence of N or P during first period or completely
absence decreased Mn concentration, total accumulation
and percentage distribution in different garlic plant
parts. While the same effects were shown when micronutrients
absent during bulb development stage.
(9) The absence of N, P, or micro-nutrients at early stage
of growth or throughout the whole experiment depressed
greatly the concentration of Zn in different garlic
plant parts, specially for the absence of N or P on
leaves concentration. The absence of Fe at any period
increased Zn concentration on roots as well as leaves
at the end of bulb development stage while that of bulb
decreased. All tested nutrients declined the total
accumulation of Zn in different plant parts when these
elements were absent during the first period of garlic
plant stage, except for the complete absence of N,
which increased Zn proportion in bulbs.
(10) The concentration of eu or the total accumulation in
various garlic plant parts nearly to have the same to
that of Mo, when N was absent during the second period
of growth a reduction in eu proportion in leaves was
observed while an increase in bulb was occurred. The
absence of Fe or micro-nutrients during any stage of
growth reduced proportion accumulation of eu in roots
and bulbs while that of leaves increased.
(11) The absence of N, P, Fe or micro-nutrients during any
period of growth specially the first period depressed
greatly the concentration and total amounts of reducing
and non reducing sugars in different garlic
plant parts. The most depressive effect was p~oed
with the absence of N followed by P and Fe or micronutrients
came the latter.
(12) The bulbs possessed the highest of variable protein
fractions during different period at growth. Water
rpotein fraction was the highest one in different plant
parts followed by the salt soluble, residual nonsoluble,
alcohol soluble, and alkaline buffer soluble
was the less one. The absence of any tested nutrients
during the first period of growth or the complete
absence caused a depressive effect on total protein
fraction content specially in bulby N or P absence
seemed to have the greatly eff~ct, followed by Fe or
micro-nutrients which affected slightly in this
respect.