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GrainGenes Reference Report: SAR-20-537

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Reference	SAR-20-537
Title	Heterosis for yield and related traits in spring wheat
Journal	Sarhad Journal of Agriculture
Year	2004
Volume	20
Pages	537-542
Author	Tariq S Khalil IH Swati MS Shah SMA
Abstract	Spring wheat cultivars Ghaznavi-98, Khatakwal, ICP-3, Inqilab-91, ID-458, Fakhre Sarhad, Takbeer, Pirsabak-85, Tatara and Suleman-96, and their 30 F SUB 1 hybrids were evaluated in Peshawar, Pakistan, during the 2002/03 cropping season to estimate mid-parent heterosis for yield and yield-related traits. There were highly significant genetic differences among parents and F SUB 1 hybrids for productive tillers per plant, spike length, spikelets per spike, kernels per spike, 1000-kernel weight and grain yield per plant. The mid-parent heterosis estimates of F SUB 1 hybrids ranged from -24.5 to 107.9% for tillers per plant, -10.9 to 16.5% for spike length, -13.7 to 7.9% for spikelets per spike, -33.6 to 17.1% for kernels per spike, -21.7 to 61.6% for 1000-kernel weight and -55.7 to 156.8% for grain yield per plant. Ghaznavi-98 x Takbeer had the highest positive heterosis for the number of productive tillers per plant. Pirsabak-85 x Khatakwal showed the highest heterosis for spikelets per spike and kernels per spike. Khatakwal x Ghaznavi-98 and Tatara x Khatakwal exhibited the highest positive heterosis for 1000-kernel weight and grain yield per plant. Based on the mean performance and heterotic effects for the yield and related yield components, the parents of these 4 hybrids were suggested for use in wheat breeding programmes
Keyword	[ Hide all but 1 of 24 ] breeding programmes crop yield cultivars estimates genetic variation genetics grain grain yield heterosis hybrids kernel kernels length plant breeding spikelet spikelets spikes spring tillers traits weight wheat yield component yield components

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