Inheritance of photoperiodic response in rainfed lowland indica rice.

摘要

The inheritance of photoperiod sensitivity in 7 intervarietal crosses of indica rice (Oryza sativa) was studied. The photoperiodic response followed a qualitative inheritance, with photosensitivity being dominant over photoinsensitivity. Digenic complementary epistasis in 3 crosses (Saket 4 x Sudha, Saket 4 x Kamini and Sita x Vaidehi) was observed, whereas inhibitory epistasis was evident in 4 crosses (Prabhat x Vaidehi, Prabhat x Sudha, Prabhat x Kamini and Saket 4 x Vaidehi).