Genetic Assessment of Fertility Restorer Rice Lines for Yield and Yield Contributing Traits
Year: 2024
Type: article
Abstract: For various yield and yield-contributing parameters, 98 rice fertility restorer lines were assessed for variability, heritability and genetic advance.The experimental material was collected from Rice Improvement Project, Department of Plant Breeding & Genetics, JNKVV, Jabalpur.During Kharif 2021, the experiment was conducted in the Seed Breeding Farm of the Department of Plant Breeding and Genetics at the College of Agriculture, J.N.K.V.V, Jabalpur (M.P.), India.The data was recorded on three randomly selected plants for various quantitative characters.The treatment, i.e. mean sum of squares due to genotypes showed significant differences for all the characters studied, indicating the presence of high genetic variability among the genotypes.Results revealed that the estimates of GCV were lower than the respective PCV, indicating the influence of environmental factors on the expression of the traits studied.Fertile spikelets per panicle, number of spikelets per panicle, sterile spikelets per panicle, flag leaf width, spikelet density and 1000 seed weight were found to have the highest GCV & PCV.High heritability accompanied with high genetic advance was exhibited by spikelet density, fertile spikelets per panicle, total spikelets per panicle, grain yield per plant, flag leaf width, 1000 seed weight, flag leaf length, panicle weight, stem thickness, biological yield per plant, harvest index, panicle length, number of tillers per plant, decorticated grain L/B ratio, Sterile spikelets per panicle, stem length and plant height which suggested that these traits would respond to selection owing to their high genetic variability and transmissibility.High heritability accompanied with moderate genetic advance was depicted by grain breadth, head rice recovery, Panicle index, decorticated grain length, decorticated grain breadth, milling %, days to 50% flowering, days to maturity and grain length suggested the role of both additive and non-additive gene action in their inheritance.
Source: PLANT ARCHIVES
Authors: Yuvraj Nath Chouhan, Sanjay Kumar Singh, Vakeel Kumar Chakrawarty, Tasphiya Elahi, Sauryatha Chandanan, Ravi Gautam
Institution: Jawaharlal Nehru Krishi Vishwa Vidyalaya
Language: English
Topic: Genetics and Plant Breeding
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W4405923648