Variability, heritability and correlation studies on grain yield and related traits in spring wheat genotypes / Bhuwan Raj Ojha in Journal of Agriculture and Forestry University, Volume 3 (2019)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 3 (2019) . - 57-62 p. Title : Variability, heritability and correlation studies on grain yield and related traits in spring wheat genotypes Material Type: printed text Authors: Bhuwan Raj Ojha, Author ; A. Ojha, Author ; R. Chaudhary, Author Publication Date: 2020 Article on page: 57-62 p. Languages : English (eng) Keywords: Yield attributing traits, correlation, spike, genetic advance Abstract: A field research was done at the research station of AFU, Rampur, Chitwan during the wheat growing season of 2018/19 to study the genetic variability, heritability, genetic advance, and correlation of grain yield and yield attributing traits in wheat. Eight wheat genotypes were tested using Completely Randomized Block Design with three replications under rainfed condition. Observations were taken for grain yield, spike length, number of tillers per m2 , test weight, number of grains per spike, and grain weight per spike. The analysis of variance revealed significant differences among the tested wheat genotypes for all the characters, except number of tillers per m2 . 8thHPYT409 had the highest number of effective tillers per m2 (399), number of grains per spike (54), grain weight per spike (2.32 g), test weight (406 g) and grain yield per plot (2.51 kg). Number of grains per spike had the highest broad sense heritability (0.72) along with high genetic advance (22%) which can be considered the good estimate for effective selection of the trait. Moderate heritability (0.54) and highest genetic advance (31%) was estimated for grain yield per plot. Number of grains per spike had highly significant positive correlation with grain weight per spike and yield per plot, suggesting number of grains per spike has positive influence on yield (r = 0.59**). Link for e-copy: https://afu.edu.np/sites/default/files/6._Variability%2C_heritability_and_correl [...] [article] Variability, heritability and correlation studies on grain yield and related traits in spring wheat genotypes [printed text] / Bhuwan Raj Ojha, Author ; A. Ojha, Author ; R. Chaudhary, Author . - 2020 . - 57-62 p. Languages : English (eng) in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 57-62 p. Keywords: Yield attributing traits, correlation, spike, genetic advance Abstract: A field research was done at the research station of AFU, Rampur, Chitwan during the wheat growing season of 2018/19 to study the genetic variability, heritability, genetic advance, and correlation of grain yield and yield attributing traits in wheat. Eight wheat genotypes were tested using Completely Randomized Block Design with three replications under rainfed condition. Observations were taken for grain yield, spike length, number of tillers per m2 , test weight, number of grains per spike, and grain weight per spike. The analysis of variance revealed significant differences among the tested wheat genotypes for all the characters, except number of tillers per m2 . 8thHPYT409 had the highest number of effective tillers per m2 (399), number of grains per spike (54), grain weight per spike (2.32 g), test weight (406 g) and grain yield per plot (2.51 kg). Number of grains per spike had the highest broad sense heritability (0.72) along with high genetic advance (22%) which can be considered the good estimate for effective selection of the trait. Moderate heritability (0.54) and highest genetic advance (31%) was estimated for grain yield per plot. Number of grains per spike had highly significant positive correlation with grain weight per spike and yield per plot, suggesting number of grains per spike has positive influence on yield (r = 0.59**). Link for e-copy: https://afu.edu.np/sites/default/files/6._Variability%2C_heritability_and_correl [...]