بررسی اثر سطوح مختلف تنش خشکی بر جوانه‌زنی و رشد اولیه گیاهچه ارقام برنج

In order to study the effect of drought on germination and early seedling growth on variety of rice experiment was designed by using a completely randomized design with four replications in seed laboratory of ramin university. The first factor included five drought stress (D1:0),( D2:-2),( D3:-4)( D4:-6) and (D5:-8) bar and second factor included three Variety of rice namely (v1):Danial, (v2):champa and (v3): Red Anbori by using concentrations of PEG 6000 of the Studied. After 14 day of germination, germination percentage, germination rate seed, length of radical, length of shoot, dry weight of radical, dry weight of shoot and the number of radical measured. The results show that Variety, drought stress levels and their interaction, have significant effects on germination percentage, germination rate seed, length of radical, length of shoot, dry weight of radical, dry weight of shoot and the number of radical .also with increasing drought stress all measured were decreased, but this reduction, was greater in length of shoot. Also the highest germination percentage, germination rate seed, length of radical, dry weight of radical and the number of radical belonged to Red Anbori in -8 bar of potential. As a result of this project detected that red anbory germination can be extremely tolerable to under water stress condition