ABSTRACT
Percentage seed germination, root and shoot length of the wheat seedlings were measured on 5th day. Effect of hyper-gravity and gamma irradiation on germination percentage was observed on the 5th day of growth of wheat seedlings. It was observed that the germination percentage decreases with increase in hyper-gravity value; the highest percentage germination was observed in control and continuous decrease in it was observed for higher hyper-gravity values. The effect of hyper-gravity and gamma irradiation on the shoot length was observed on the 5th day of growth of wheat seedlings. The relative percentage decrease in germination percentage in only hyper-gravity treatment was highest in 1500g, which is very less than combined irradiation and hyper-gravity treatment. In space farming, the key variables are gravity and radiations; hence, the study of the plant behavior in such conditions is required. There are many studies where the effects of hyper-gravity on plants and the effect of gamma irradiation on dry seeds were studied individually.
