TITLE

HETEROSIS AND HETEROBELTIOSIS FOR GRAIN YIELD IMPROVEMENT IN BREAD WHEAT

AUTHOR(S)
Akbar, Muhammad; Anwar, Javed; Hussain, Makhdoom; Iqbal, Muhammad Muzaffar; Sabir, Waseem
PUB. DATE
March 2010
SOURCE
Journal of Agricultural Research (03681157);Mar2010, Vol. 48 Issue 1, p15
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A study was conducted at Wheat Research Institute, AARI, Faisalabad, Pakistan during 2006-08 to estimate the level of heterosis and heterobeltiosis among F1 hybrids developed from four lines and three testers in bread wheat. Genotypic mean squares for all traits studied were highly significant genetic depicting significant variability for these traits. Heterosis and heterobeltiosis were estimated for grain yield per plant, number of tillers per plant, spike length, number of spikelets per spike, 1000-grain weight and plant height in cross combinations of four lines (HI666 / PVN'S', HUBARA'S', Faisalabad 85 and Faisalabad 83) and three testers (PBW65/ROER/3/PB6 // MIRLOW / BUC, Faisalabad 2008 and PBW502) of bread wheat. The results exhibited significant differences among genotypes and their crosses for all traits studied. The cross "Faisalabad 83 x PBW65 / ROER / 3 / PB6 // MIRLOW / BUC depicted significant and maximum heterosis and heterobeltiosis for grain yield and most of the other traits followed by "Faisalabad 85 x PBW65 / ROER / 3 / PB6 // MIRLOW / BUC". These crosses will be considered for finding transgressive segregants in late segregating generations to develop a wheat variety with higher grain yield potential.
ACCESSION #
57232580

 

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