Adaptability of Seed Disinfectants in Hydroponically Raised Seedling Method for Long-mat Type Rice Cultivation

Abstract

In hydroponically raised seedling method for long-mat type rice cultivation, influences of seed disinfectants on seedling growth were examined. Damage from the disinfectants appeared severely in the roots than in the upper part of rice seedlings, so the extension of roots was obstructed. On the other hand, the restraint of root extension in seedlings treated with pefurazoate or benomyl was lesser than in the seedlings treated with other disinfectants. These results suggest that pefurazoate and benomyl could be applied to hydroponically raised seedling method for long-mat type rice cultivation.