ICAR Research Data Repository for Knowledge Management
Biometrical studies IN CHILLI (Capsicum annuum L.)
KrishiKosh
View Archive Info| Field | Value | |
| Title |
Biometrical studies IN CHILLI (Capsicum annuum L.)
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| Creator |
Shivkumar
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| Contributor |
R.M.Hosamani
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| Subject |
Horticulture
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| Description |
Chilli is an important vegetable spice crop, widely grown throughout India. An investigation on biometrical studies in chilli for 20 traits including the biotic stresses was undertaken at the AICRP (vegetable) block during kharif 2004-05 by using 69 genotypes. There was considerable variability for the 20 quantitative characters as indicated by the analysis of variance. Moderate to high GCV and PCV, high heritability with high genetic advance as per cent mean was observed for most of the characters. Correlation studies indicated that dry fruit yield had highly significant positive association with number of fruits and number of branches per plant revealing that selection based on these traits would ultimately improves the fruit yield. Path-coefficient analysis revealed that number of fruits per plant and fruit weight had the highest positive direct effect on fruit yield. Fruit related traits contributed indirectly through fruit weight to fruit yield. Hence, hybridization of genotypes possessing combination of such traits will be useful to get desirable high yielding segregants. . A wide ranging d2 values indicated high extent of diversity in germplasm. Eleven clusters were formed among 69 genotypes. The maximum diversity was observed between cluster II and VI. The maximum contribution of characters towards diversity was by pericarp weight, dry fruit yield and number of fruits per plant. Thus these traits may be given high emphasis while selecting the lines for hybridization. Screening for diseases and pests revealed that eight genotypes were found moderately susceptible to powdery mildew, while 12 and 17 genotypes found resistant and moderately resistant to fruit rot, respectively. For fruit borer damage five were resistant and 64 were found moderately resistant. Four genotypes showed lower damage by red hairy caterpillar. So, these lines can be used in resistant breeding programmes in chilli. From the results ‘6/1’, ‘115/3’ and ‘6/1’ were identified as potential genotypes for dry fruit yield. |
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| Date |
2016-10-24T17:16:39Z
2016-10-24T17:16:39Z 2005 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/81607
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| Format |
application/pdf
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| Publisher |
UAS, Dharwad
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