Study of genetic variability and diversity in brinjal (Solanum melongena L.)
KrishiKosh
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Title |
Study of genetic variability and diversity in brinjal (Solanum melongena L.)
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Creator |
Yadav, Neha
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Contributor |
Dhankhar, S.K.
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Subject |
Colourants, Animal husbandry, Oils, Antioxidants, Biological phenomena, Concentrates, Additives, Hydration, Oligosaccharides, Aromatic compounds
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Description |
A field experiment entitled “Study of genetic variability and diversity in brinjal (Solanum melongena L.)” including forty genotypes was conducted at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during autumn winter season 2015. The observations were recorded on thirteen qualitative characters including fifteen qualitative traits. The analysis of variance exhibited significant genotypic differences, showing considerable amount of genetic variability among different genotypes. The characters like fruit weight and yield per plant showed high GCV along with heritability, indicating additive gene action. Relatively higher and lower values of genotypic coefficient of variation for different yield contributing characters like number of fruits per plant, average fruit weight, fruit length and fruit diameter, which were less affected by environments should be selected for future development of higher yielding varieties. Significantly positive genotypic correlation was observed for number of branches per plant (0.610**), number of fruits per plant (0.565**), number of flowers per cluster (0.394**) and plant height (0.213*) with fruit yield per plant. Path analysis showed that number of branches and fruits per plant had high direct effect and number of flowers per cluster had indirect effect via., number of branches per plant with fruit yield per plant, indicating that these traits should be given importance for selection in present material. Average intra- and inter-cluster D 2 values among 40 genotypes revealed that cluster II showed a minimum intra-cluster value of 3.793, indicating that the genotypes within this cluster were similar, while the cluster I showed maximum intra-cluster D 2 value (4.681) revealing the existence of diverse genotypes in these clusters. The inter-cluster D 2 values ranged from 4.657 to 7.174. The minimum inter-cluster D 2 value was observed between cluster III and IV (4.657), indicating the close relationship among the genotypes included in these clusters. The maximum inter-cluster value was observed between cluster V and II (7.174), indicating that the genotypes included in these clusters had maximum divergence. Hence, hybridization between the genotypes included in these different clusters may give high heterotic responses and thus better segregants are greatly suggested for selection and improvement of brinjal crop. |
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Date |
2016-10-25T13:46:05Z
2016-10-25T13:46:05Z 2016 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/81824
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Language |
en
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Format |
application/pdf
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Publisher |
CCSHAU
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