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Abstract
Two field experiments were conducted in the experimental farm of
agriculture research station , ARC at Ismailia during 200112002 and
2002/2003 seasons to study the effect of three summer preceding crops
(peanut, sesame and sunflower) and three seeding rates 40, 60 and 80 kg/fad.
on growth, yield and its components as well as yield quality of two wheat
varieties (Sakha 8 and Sakha 93) under sprinkler irrigation in newly sand
soils at Ismailia.
-Over the two seasons, growing wheat after peanut significantly surpassed
wheat following sesame or sunflower in growth characters, grain, straw and
protein yields /fad. and grain protein percentage.
-Over the two seasons, Sakha 93 variety significantly exceeded Sakha 8 in
growth characters, number of tillers and spikes/m/ , number of spikes/plant,
number and weight of grain/spike and grain yield /fad. While Sakha 8 variety
significantly surpassed Sakha 93 in plant height at harvest, spike length,
1000-grain weight, grain protein percentage and straw, biological and protein
yields/fad.
-Over the two seasons, increasing seeding rates from 40 to 60 and 80 kg/fad.
significantly increased plant height at harvest, number of tillers and spikes/m’
and straw and biological yields /fad. while seeding rate of 60 kg/fad.
significantly outvielded 40 and 80klllfad. in grain and protein yields/fad.