Vol. 12, Issue 3 (2023)

Author(s):
Priya Gupta, Mangla Parikh, Sahana Bhat and Krishna Tandekar

Abstract:
The present investigation was undertaken with the objective of DUS characterisation of 49 rice germplasm accessions rice including 4 checks has been planted in Randomised Block Design within two replication for 39 visually assessed characters and 25 quantitative characters. Trials were conducted for two seasons during Kharif 2019 at research cum instructional farm, Department of Genetics and Plant Breeding, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (Chhattisgarh) in a Randomized Complete Block Design (RCBD) in two replications with the spacing of 20 cm × 15 cm and the recommended cultural practices were followed. For this data were recorded for sixty-one DUS descriptors following the guidelines of the International Union for the Protection of New Varieties of Plants (UPOV) and the Protection of Plant Varieties and Farmer’s Rights Authority (PPV & FRA). In the present study, 9 visually assessed characteristics are found to be monomorphic, 15 are dimorphic and 15 are polymorphic. The descriptors that registered maximum variation were basal leaf: sheath color, spikelet: density if pubescence of lemma, stem length, flag leaf: attitude of blade (late observation) were found to be polymorphic in nature.