tailieunhanh - Genetic variability analysis for yield and nutritional traits in foxtail millet [Setaria italica (L.) Beauv]

An investigation was conducted to assess the magnitude of genetic variability, heritability (broad sense) and genetic advance as per cent of mean in 100 foxtail millet genetic resources for 18 metric traits. The analysis of variance (ANOVA) revealed highly significant differences among the genetic resources for all the metric traits studied. Phenotypic coefficient of variation (PCV) was greater than genotypic coefficient of variation (GCV) for all the characters studied indicating that these characters were highly influenced by the environmental effects. Estimates of PCV and GCV values (>20%) were high for copper, iron, magnesium, zinc, grain yield/ plant and number of productive tillers/plant implying wide spectrum of variation among the test genotypes studied. High heritability (>60%) coupled with high genetic advance as per cent of mean registered by panicle length, number of productive tillers /plant, carbohydrate, calcium, magnesium, iron, zinc, copper, manganese and grain yield/ plant indicated that these traits were predominantely under additive gene action and their improvement is possible through simple selection strategies. | Genetic variability analysis for yield and nutritional traits in foxtail millet [Setaria italica (L.) Beauv]