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Heritability and interrelationship among traits of twenty Brassica genotypes

By: Shahab Ahmad, Haneef Raza, Abdul Saboor Khan, Fawad Ali, Naila Nawaz Khan, Murad Khan, Muhammad Nauman, Shahid Ali, Naimat Ullah, Sohail Ahmad, Khalid Khan

Key Words: Genetic potential, Heritability, Correlation, Selection response, Brassica cultivars

Int. J. Biosci. 10(5), 1-7, May 2017.

DOI: http://dx.doi.org/10.12692/ijb/10.5.1-7

Abstract

The genetic potential, heritability, selection response and correlation were studied during 2011-12 in brassica cultivars at the University of Agriculture, Peshawar, Pakistan. Data were recorded on days to maturity, plant height, pods per main raceme, pod width and 100-seed weight. Analysis of variance showed highly significant (P≤0.01) differences for all the traits. Mean ranges were days to maturity (178 to 205 days), plant height (174.7 to 215 cm), pods per main raceme length (27.0 to 56.3), pod width (0.3 to 0.5 cm) and 100-seed weight (0.25 to 0.41 g). Heritability and selection response were; days to maturity (0.70; 8.11), plant height (0.35; 8.7), pods main raceme-1, (0.68; 9.11), pod width (0.60; 0.06) and 100-seed weight (0.57; 0.04), respectively. Days to maturity revealed significant positive with plant height (r= 0.661**), pods per main raceme (r= 0.302*) and non-significant with 100-seed weight. Plant height revealed positive significant correlation with 100-grain weight (r= 0.375**) and non-significant with pods per main raceme and pod width. Similarly pods per main raceme exhibited positive non-significant correlation with 100-seed weight and negative with pod width. Whereas, pod width manifested negative correlation with 100-grain weight. Results revealed that the studied genotypes with larger genetic potential, positive relationship between yield and yield contributing traits and moderate to high heritability could guide intensive selection and improvement and could further be studied to identify better performing lines for Peshawar division.

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Heritability and interrelationship among traits of twenty Brassica genotypes

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Shahab Ahmad, Haneef Raza, Abdul Saboor Khan, Fawad Ali, Naila Nawaz Khan, Murad Khan, Muhammad Nauman, Shahid Ali, Naimat Ullah, Sohail Ahmad, Khalid Khan.
Heritability and interrelationship among traits of twenty Brassica genotypes.
Int. J. Biosci. 10(5), 1-7, May 2017.
http://www.innspub.net/ijb/heritability-interrelationship-among-traits-twenty-brassica-genotypes/
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