بررسی هیبرید‌های تجاری ذرت در شرایط مصرف میزان مناسب آب و کم‌آبیاری برای عملکرد دانه

To evaluate reaction of commercial corn hybrids to low irrigation form corn plant's rapid growth (7-8 leaf stage) until a week before the stage plant physiological maturity, an experiment with six commercial grain hybrid corns was carried out a randomized complete block design in Islam-Abad research station, three levels of irrigation operations was down. Measurement characteristics include the yield and yield components. The effect of a factor (different amounts of water), B factor (hybrid maize varieties) and their interaction as well as for all of the treats was significant at 5 and 1% levels. The highest and lowest seed yield belong to the 100% level and the level of 70 % water need corn with 13.440 and 8.644 ton/ha respectively. A wide range of grain yields from 7.53 to 14.60 ton/ ha was belonging to 70% of water use of KSC 700 and in 100% water supply need was belong to KSC700 respectively. Based on drought tolerance index the genotype of the KSC 647 and KSC 704 as the most tolerant genotypes were assessment.