ICAR Research Complex for N. E. Hills Region, Shillong 793004.
* Present address: P; O. Box 436, P. O. Junglighat, Andaman & Nicobar Islands 744103.
In a one-way diallel cross (7X7), the parents included were of different stature, tillering habit and canopy area. Unlike the dwarfs, tall local parents had high leaf area with low tillering capacity. Both additive and nonadditive gene actions were Involved, witb the preponderance or the former. Incomplete dominance, dominance, overdominance and nonallelic interactions were evident in various eases.
Rice, O. sativa, vegetative traits, P-stress
