Effect of Bavistin on seed germination, morphological featur es and yield of V igna radiata

The experiment was conducted at D.S. College Aligarh during the period of July, 2011 to October, 2012 to evaluate the effect of bavistin inM andM generation on Vigna radiate variety PM-5. The seeds were treated with the concentration of 0.25%, 0.50%, 0.75%, and 1% of bavistin before sowing in the experimental plots in M generation. The seeds obtained from M generation were again treated with the corresponding concentration of bavistin before sowing in the experimental plots. The results showed increasing trends in the germination percentage, numberof branches per plant, and numberof pods per plant up to 0.50% concentration in treated seeds. The increasing trend in the height of the plants and weight of the seeds were observed up to 0.75% concentration treated seeds. But when the concentration increases thereafter, results showed decreasing trends in the germination percentage, height of the plants, number of branches per plant, number of pods per plant and weight of the seeds in both M and M generation. Therefore the effect of bavistin on overall growth of the plants and yield is positive up to 0.50%treated seeds. Treatment concentration higher than 0.50% concentration began deleterious effect on germination, number of pods per plant and number of branches as well as treatment concentration more than 0.75%concentration had deleterious effect on height of the plants and weight of the seeds in M and M generation. Thus overall impact of bavistin on yield is positive up to 0.50% concentration treated seeds. With increasing the treatment concentration of bavistin more than 0.50% concentration, the yield showed decreasing trends.