الفهرس 
Introduction
Vegetative growthOnly 14 pages are availabe for public view
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Abstract
The present study was conducted at Private Farm in Belqas, Dakahlia Governorate, Egypt during summer seasons of 2016 and 2017 to study the effect of irrigation intervals and some anti transpirants, i.e., silicon at 1000 ppm, chitosan at 150 ppm and glycine betaine at 700 ppm on vegetative growth, pod yield and quality of okra (Balady) cultivar which grown under two different irrigation intervals of clay soil. Split-plot design was the experimental layout with three replicates. These experiments included 8 treatments which were the combination between 2 irrigation intervals and 4 treatments of foliar application of antitranspirants. Two treatments of irrigation intervals (10 and 20 days) were arranged randomly in the main plot, while four treatments of foliar application of antitranspirants were distributed randomly in the sub-plots. It could be concluded that sowing okra plant (Balady cultivar) under similar conditions for local consumption and exportable which irrigated every 10 days interval or irrigated every 20 days interval and spraying with silicon at 1000 ppm or chitosan at 150 ppm or glycine betaine at 700 ppm four times, i.e., 20 days after sowing then repeated each 10 days interval achieve the highest growth, yield, quality and WUE of okra plant. Sprayed balady cultivar of okra plant with chitosan at 150 ppm four times, i.e., 20 days after sowing then repeated each 10 days interval achieve the highest significant values of growth, yield and quality traits of okra plant in the normal irrigation at 10 days intervals, except WUE which recorded the highest values in the condition of sprayed okra with chitosan at 150 ppm in the case of water stress, irrigation every 20 days interval. It has been noticed that balady cultivar of okra significantly responded to irrigation intervals and foliar application of antitranspirants, thus it must conduct more researches for improving production and quality under local environmental conditions.