*Present address: Nuclear Research Laboratory, IARI, New Delhi-12.
**Present address: University of Kalyani, Kalyani, West Bangal.
Online published on 25 January, 2012.
The heterozygotic effects of a random sample of recessive chlorophyll mutant genes in rice on quantitative traits were observed to vary depending on the environmental test conditions.
The overall superiority of the heterozygotes over the corresponding homozygous sibs, as noted with regard to all the traits studied in consecutive two seasons, was changed considerably and converted, in general, into an evident inferiority when the same were grown at high level of nitrogen fertilization
