الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Summer squash (Cucurbita pepo, L.) IS one of the economical
vegetable crops all over :he world, The cultivated area in Egypt is about
65000 feddan. for fresh fruit 11995’). This area requires about 260 tons
of seeds for sowing. Seed production studies on summer squash in Egypt
did not have great attention although seed production is considered one
of taD money product not only for sowing but also for eating seeds for
fun,
Seeds of squash afe rich it) protein (34%), oil {46%1, carbohydrates
(10%) and fib€HS (2.8%) (Whiatker and Davis, 19621. They also have a
good taste and many people all over the world eat the: ’. Therefore, it
could be an export crop especially it succeeds in Egypt as a summer
crop. Seed production of summer squash depends on many ecological
factors such as insect activity, air temperature, soil type ard ferti!1ty
program. Insect activity increases fru’t set with a full embryo seeds.
Therefore. planting date was important to be studied to choose the
suitable time for growing and also studying nutritional treatments to
recommerd the Suitable requirements of different fertilizers tor this type of
production in Dakahlia alkaline soiL
The objectives of thiS work were to study the effect of two
summer planting dates, NPK levels and micro nutrients (Zn, Band Mn) as
foliar application on growth and seed yield of summer squash.