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Character Association and Casual Effects of Polygenic Traits in Spring Wheat (Triticum aestivum L.) Genotypes
Current Issue
Volume 2, 2014
Issue 1 (February)
Pages: 16-21   |   Vol. 2, No. 1, February 2014   |   Follow on         
Paper in PDF Downloads: 41   Since Aug. 28, 2015 Views: 2030   Since Aug. 28, 2015
Authors
[1]
Muhammad Zeeshan , Barani Agricultural Research Station, Fatehjang, Pakistan.
[2]
Waheed Arshad , Barani Agricultural Research Station, Fatehjang, Pakistan.
[3]
Muhammad Imran Khan , Barani Agricultural Research Station, Fatehjang, Pakistan.
[4]
Shiraz Ali , Barani Agricultural Research Station, Fatehjang, Pakistan.
[5]
Muhammad Tariq , Barani Agricultural Research Institute, Chakwal, Pakistan.
Abstract
The present study was conducted at Barani Agricultural Research Station, Fatehjang, during rabi 2011-12 to evaluate variability, heritability, genetic advance, character association and their causal effects on grain yield plant-1 in ten wheat genotypes viz. BARS-09, AARI-11, Punjab-11, Millat-11, Chakwal-50, Lasani-08, NARC-09, Seher-06, Auqab-2000 and 05FJS3074. All the genotypes demonstrated highly significant differences for all the traits. Grain yield plant-1 had positive and significant correlation at both genotypic and phenotypic levels with 1000-grain weight and harvest index, number of tillers plant-1 and spike length but non-significant with number of spikelets spike-1 and flag leaf area. 1000-grain weight showed maximum direct effect (0.7298) towards grain yield plant-1 followed by number of tillers plant-1 (0.6638), harvest index (0.4021) and spike length (0.2629) while lowest direct effect was contribute by flag leaf area (-0.1196). High heritability genetic advance was exhibited by number of tillers plant-1, harvest index and grain yield plant-1 that confirms their additive gene action. Characters like; 1000-grain weight, spike length, number of tillers plant-1 and harvest index should be considered in selection procedure towards improvement in grain yield plant-1 indirectly.
Keywords
Wheat, Yield Components, Heritability, Genetic Advance, Correlation, Path Coefficient
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