alexa Heritability, Trait Association and Path Coefficient Studies for Some Agronomic Characters in Synthetic Elite Lines of Wheat (Triticum aestivum L.) Under Rainfed Conditions
ISSN: E 2347-226X, P 2319-9857

Research & Reviews: Journal of Agriculture and Allied Sciences
Open Access

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Research Article

Heritability, Trait Association and Path Coefficient Studies for Some Agronomic Characters in Synthetic Elite Lines of Wheat (Triticum aestivum L.) Under Rainfed Conditions

Muhammad Zeeshan1*, Waheed Arshad1, Muhammad Imran Khan1, Shiraz Ali1, Ali Nawaz1, and Muhammad Tariq2

1Barani Agricultural Research Station, Fatehjang, Attock, Pakistan

2Barani Agricultural Research Institute, Chakwal, Pakistan.

*Corresponding Author:
Muhammad Zeeshan
Muhammad Zeeshan,
Barani Agricultural Research Station,
Fatehjang, Attock, Pakistan.
Received: 21/07/2014 Revised: 13/08/2014 Accepted: 23/08/2014
 

Abstract

50 synthetic elite lines of wheat were evaluated to their genetic variability, heritability for quantitative traits and the direct and indirect contributions of important yield components towards grain yield to identify the characters of utmost importance that may be used as selection criteria in a wheat breeding program. The experimental material consisted of. Agronomic characters were recorded including days to heading, days to flowering, days to anthesis, days to physiological maturity, grain filling period, plant height, plant biomass, number of spikes / plant, number of spikelets /spike, spike length, harvest index, 1000-grain weight and grain yield / plant. Harvest index exhibited highest heritability value of 83.31% while 1000-grain weight showed minimum value of 42.32%. Grain yield correlated positively with flag leaf area, plant height, biomass, number of spikes, spike length, number of spikelets / spike, number of grains / spike, 1000-grain weight and harvest index. Path coefficient analysis indicated that grain yield had a positive direct effect with spike length and number of grains per spike. The traits having a positive direct effect on grain yield can be considered as a selection criteria for evolving high yielding wheat elite genotypes.

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