Stability analysis of selected mutants of Indian indigo (Indigofera tinctoria L.)

Stability analysis was carried out with nine mutant genotypes and one local accession of neelamari (Indigofera tinctoria L.) under four environments to identify stable genotypes that could be cultivated uniformly under varied environmental conditions for yield and yield attributing traits as well as for the indigotin content. Pooled analysis of variance for stability indicated that all the genotypes of neelamari were highly significant for all the characters indicated that materials selected possessed sufficient genetic variation for all the traits studied. Mean squares due to G x E interaction and E + (G x E) were found significant for some of the traits. Genotype x Environment (linear) were exhibited by all the genotypes for most of the characters. The mutants It-3 and It-6 were stable over all environments for the characters plant spread, dry weight of leaves and indigotin content. Mutant It-8 was stable over favourable environment for the characters plant height, plant spread, girth of stem, total fresh weight of plant, fresh weight of leaves and dry weight of leaves and It-10 was stable over unfavourable environment for  plant spread, total fresh weight of the plant and dry weight of shoot

Genetic Divergence in Guinea grass (\u3cem\u3ePanicum maximum\u3c/em\u3e Jacq.)

Guinea grass is ideal forage crop and grows well on a wide variety of soil and even under light shade of tree and bushes and can survive long dry spell and quick moving fires which does not harm underground root. In order to improve productivity, adaptability and quality of Guinea grass, it is important to understand the genetic diversity which exists in the population which also helps in their conservation and germplasm management (Tiwari and Chandra, 2010). The present study was undertaken to estimate the amount of diversity among 37 germplasm accessions (Panicum maximum Jacq.) and to identify diverse genotypes for breeding programmes for better yield and quality

Correlation and Path Analysis for Growth, Yield, Quality and Incidence of Shoot and Fruit Borer in Brinjal (Solanum melongena L.)

The study was conducted using sixty brinjal genotypes to evaluate yield quality and incidence of shoot and fruit borer with an objective to study the correlation and path coefficient analysis. The majority of the time, genotypic correlations were higher than phenotypic correlations, indicating that the attribute is highly heritable. At the genotypic level, fruit yield per plant significantly correlated positively with the number of fruits per plant, the weight of infested fruit, the girth of fruit, the height of the plant, the number of primary branches per plant, the proportion of medium-styled flowers, the proportion of long-styled flowers, and the length of fruits. It an exhibited significant negative correlation with SFB fruit infestation as well as SFB shoot infestation both at phenotypic and genotypic levels. Path coefficient revealed that fruits per plant showed a high and positive direct effect on yield followed by fruit weight, long -styled flowers, medium -styled flowers, and days to first harvest. Direct selection for these traits would be rewarding for improvement in the fruit yield per plant