محلول پاشی هگزاکونازول و سیلیکات کلسیم بر افزایش مقاومت به کم‌آبی در گندم (Triticum aestivum L.)

Water lack stress is considered as a major factor limiting crop production. The aim of the present study, is to investigate some morphological traits, yield and yield components in bread wheat and proline contents of leaves under the influence of dissolved Spray hexaconazole(HEX) (47 micromoles per liter), Calcium silicate (72/1Mmol per liter) and water as control and water deficit (50%, 65% and 75% moisture content of the soil). Results showed that drought stress reduced plant height, leaf fresh weight, weight grain yield, biological yield and eventually became a leading harvest indicators and increased leaf proline contents. Results of data analysis showed that the spraying of hexaconazole(HEX) compared to other solutions increase leaf area and leaf fresh weight grain yield and harvest index in the control treatment, dehydration was severe dehydration and heat stress and dehydration stress with increased leaf proline content was reduced. Spray of Calcium silicate  compared to other spraying was lead to reduced leaves surface, and the increase leaves the fresh weight of leaf , seed weight, seed yield and harvest index were treated control dehydration and proline increases in leaf water stress than hexaconazole(HEX) increased and decreased compared to control water. Spray water control increases in leaf area and yield biologically Water spray at lack water stress., in general we can conclude that spraying hexaconazole(HEX) improve wheat yield in stress condition, severe drought stress and spraying Calcium silicate  resulted in increased yield in stress condition was less effective compared to hexaconazole(HEX) towards improving plant yield under severe drought.