INHERITANCE OF SCENT IN LONG GRAINS RICE GENOTYPES

Abstract

Scent is an important economic trait in rice for local consumption as well as export purposes. Long grain scented rice fetch high premium in both domestic and international markets. The experimental material comprised a long grains non-scented cytoplasmic male sterile (CMS) line, IR58025 A (Kernel length -7.53mm) and three long grains scented rice genotypes, viz., Hawn Kikwai (KL-7.75mm), Gopal Bhog (KL- 6.51 mm) and PB-5-14-50-1 (KL-7.18mm). These genotypes were crossed with same cytoplasmic male sterile line, IR 58025 A All the F1 plants of these crosses showed non-sented leaves indicating recessive nature of gene for controlling scent in rice. The evaluation of scent in F2 plants indicated 1 scented : 3 nonscented seggegation in all the crosses suggesting that scent in these rice genotypes are governed by a single recessive gene. Since these rice genotypes contain a single recessive gene for aroma, hence pedigree method can be useful to select superior genotypes for yield and quality characters in F1 and subsequent generations.