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2011 (Vol. 3, Issue: 3)
Article Information:

Heritability of Morphological Traits in Bread Wheat Advanced Lines Under Irrigated and Non-Irrigated Conditions

N. Khan and F.N. Naqvi
Corresponding Author:  Nadia Khan 

Key words:  Heritability, irrigated, morphological traits, non-irrigated, wheat, ,
Vol. 3 , (3): 215-222
Submitted Accepted Published
2011 March, 24 2011 April, 20 2011 May, 25

Current research was conducted with aim to identify the characters of utmost importance in irrigated and non-irrigated conditions that may be used as selection criteria in a wheat breeding program. The experimental material consisted of 13 wheat genotypes including 11 bread wheat advanced lines from two different sources, 1 synthetic hexaploid and its durum parent. Stress was imposed by withholding irrigation at three different growth stages of plant i.e. tillering, anthesis and grain filling. Experiment was carried out in a randomized complete block in a split-plot arrangement. Water regimes (irrigated and non-irrigated) were allocated to the main plots and genotypes to the sub-plots. Morphological traits were recorded including days to heading, flowering, anthesis, physiological maturity, grain-filling period, flag leaf area, plant height, biomass, number of spikes, number of spikelets per spike, spike length, number of grains, grain yield, harvest index and 1000-grain weight. According to obtained results heritability among the traits under irrigated and non-irrigated conditions was estimated. Spike length exhibited highest heritability value of 0.89, 0.84 and 0.87 under irrigated, tillering and grain filling stress whereas grain yield had highest heritability value of 0.76 under anthesis stress. These traits therefore deserve more attention in future breeding programs for evolving better wheat for stress environments.
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  Cite this Reference:
N. Khan and F.N. Naqvi, 2011. Heritability of Morphological Traits in Bread Wheat Advanced Lines Under Irrigated and Non-Irrigated Conditions.  Asian Journal of Agricultural Sciences, 3(3): 215-222.
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ISSN (Online):  2041-3890
ISSN (Print):   2041-3882
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