Exploring the characteristics of traditional rice (Oryza sativa L.) genotypes through DUS evaluation
V. A. Mohanlal And K. Saravanan
Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University, Chidambaram – 608002 (India) mohanlal0606@gmail.com
ABSTRACT
Fifty-three traditional genotypes of rice (Oryza sativa L.) collected from different parts of Tamil Nadu, India and characterized for different qualitative and quantitative characters by following the guidelines from the Protection of Plant Varieties and Farmer’s Rights Authority (PPV & FRA). The experiment was conducted in an Randomized block design (RBD) with three replications during Kharif- 2021. Out of 41 descriptors studied, three characteristics were found monomorphic, fifteen were dimorphic, ten were trimorphic, nine were tetramorphic and four were polymorphic. The traits like green coleoptiles, medium-green leaf colouration and white ligules were prevalent among the studied genotypes. Similarly, attributes like semi-erect culm attitude, presence of secondary branching and well exerted panicle had prominently observed. However, the study also highlighted the diversity of leaf characteristics, varied stem traits, heterogeneity in panicle attributes and grain variabilities.