Genetic variability and character association in wheat (Triticum aestivum L)
2022
Tanveer, Hasan | Singh, Ram Karan | Singh, Hamveer | Sukhadewa Siṅgha,
The present investigation was conducted during Rabi 2019–20 in the crop cafeteria at Krishi Vigyan Kendra, Bilari, Moradabad to assess 21 released varieties for their 12 quantitative characters to study genetic variability, character association, and path analyses for grain yield in wheat. The experiment was laid out in Randomized Block Design with three replications. ANOVA showed highly significant differences among 21 entries of wheat for all the twelve characters namely: days to maturity, plant height (cm), no. of effective tillers/plant, flag leaf length (cm), flag leaf width (cm), flag leaf area (cm²), spike length (cm), no. of grains/spike, biological yield (g), 1000-grain weight (g), harvest index (%) and grain yield/plant (g), under studied. Moderate GCV and PCV were recorded for effective tillers per plant, flag leaf area (cm²), plant height (cm), number of grains per spike, flag leaf length (cm), spike length (cm) and biological yield (g). High genetic advance in percent of mean and high heritability (bs) were recorded for the number of effective tillers per plant, flag leaf area (cm²), plant height (cm), flag leaf length (cm), and spike length. Grain yield per plant exhibited a highly significant positive correlation with biological yield (g) and harvest index (%). The estimates of direct effect revealed that biological yield (g) exerted a very high positive direct effect on grain yield per plant.
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