STUDIES ON GENOTYPE x ENVIRONMENT INTERACTIONS IN SELECTED GENOTYPES OF GROUNDNUT (Arachis hypogaea L.) OVER EXTENDED DATES OF SOWING
| dc.contributor.advisor | VENKATARAVANA, P. | |
| dc.contributor.author | SANDHYA KIRANMAI, M. | |
| dc.date.accessioned | 2017-06-30T04:39:03Z | |
| dc.date.available | 2017-06-30T04:39:03Z | |
| dc.date.issued | 2009-07-16 | |
| dc.description.abstract | Twenty groundnut genotypes were evaluated in three environments from July III week to August II week for 15 characters to study Genotype x Environment interaction, correlation, path analysis and screening for disease resistance. Mean performance of genotypes in three different environments indicated that environment I was the most favorable for better expression of most of the characters. The phenotypic stability of 20 selected genotypes over three environments was estimated for yield and yield related traits. The mean square due to genotypes, environments and genotype x environment interaction were found significant for all the characters. GPBD-4, K-6, TMV-2, VG-9866 were promising genotypes for pod yield for majority of characters with higher mean performance across the three environments. The character association indicated a strong positive association between association between pod yield per plant and kernel yield per plant, oil yield per plant, and late leaf spot resistance irrespective of the environments. Plant height, 100 kernel weight and harvest index were strongly correlated with kernel yield per plant and pod yield per plant. The path coefficient analysis revealed that direct effect of kernel yield per plant was highest followed by oil content, oil yield per plant. The indirect effect was highest through harvest index, number of matured pods per plant, late leaf spot resistance, rust resistance and 100-kernel weight. Out of 20 genotypes screened for resistance to diseases Chintamani-1, Chintamani- 2, Chintamani-3, R-2001-2, GPBD-4, K-134 were resistant to rust and late leaf spot in all the environments. | en_US |
| dc.identifier.other | Th-9512 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810023758 | |
| dc.language.iso | en | en_US |
| dc.pages | 170 | en_US |
| dc.publisher | University of Agricultural Sciences GKVK, Bangalore | en_US |
| dc.sub | Genetics and Plant Breeding | en_US |
| dc.subject | null | en_US |
| dc.theme | INTERACTIONS IN SELECTED GENOTYPES OF GROUNDNUT | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | STUDIES ON GENOTYPE x ENVIRONMENT INTERACTIONS IN SELECTED GENOTYPES OF GROUNDNUT (Arachis hypogaea L.) OVER EXTENDED DATES OF SOWING | en_US |
| dc.type | Thesis | en_US |