Evaluation of outcrossed maize progeny for grain yield traits
2007
Ali, S. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Plant Breeding and Genetics) | Rahman, H. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Plant Breeding and Genetics) | Shah, S.S. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Plant Breeding and Genetics) | Khalil, I.A. | Khalil, I.H.
This study was conducted during 2004 and 2005 at the Agricultural Research Farm, NWFP Agricultural University, Peshawar. Nine maize progenies were developed by manual pollination during summer 2004 and were evaluated along with two checks during 2005. Data were recorded on number of ears per plot, grains per ear, grains per row and grain yield per ha. Significant amount of variability was observed among the progenies for all the traits. Outcross progeny of Genokrome Hybrid 2 produced the highest grain yield (6302.6 kg per ha), followed by Genokrome Hybrid 1 (5811.6 kg per ha). Genokrome Hybrid 1 produced maximum number of grains per row. Similarly outcross progeny of hybrid Babar produced maximum number of ears per plot. Overall results showed that the out cross progenies of different hybrids showed better performance than open pollinated checks. This suggests that out crossing helps avoid inbreeding depression as may be expected for open pollination under natural conditions, where at least some of the progeny could result from self pollination due to synchrony of pollen shedding and silking.
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