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Biometrical studies IN CHILLI (Capsicum annuum L.)

KrishiKosh

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Title Biometrical studies IN CHILLI (Capsicum annuum L.)
 
Creator Shivkumar
 
Contributor R.M.Hosamani
 
Subject Horticulture
 
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.
 
Date 2016-10-24T17:16:39Z
2016-10-24T17:16:39Z
2005
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81607
 
Format application/pdf
 
Publisher UAS, Dharwad