Abstract
Inheritance of callus formation in anther culture of rice (Oryza sativa L.) was studied by 6 x 6 diallel analysis by using Japanese lowland varieties (Aikoku, Hokuriku 100), Japanese upland varieties (Sekaiichi, Rikuto Norin Mochi 4, Akamai d) and Chinese lowland variety (I Kong Pao). There were significant varietal differences in the ability of callus formation, from 42.9% (Sekaiichi) to 0.0% (I Kong Pao). Japonica varieties of both lowland and upland showed higher callus formation ability than Indica varieties. The heritability for callus formation ability was quite high.
