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Heterosis and combining ability in some wheat crosses (Triticum aestivum, L.) under some water wheat stress condition [electronic resource].

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Nassar, M. A. A

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Language: English Summary language: Arabic Description: p.360-392Other title:

قوة الهجين والمقدرة على التآلف فى بعض هجن القمح [Added title page title]

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Journal of the advances in agricultural researches, 2012 v. 17 (2) [electronic resource].

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In: Journal of the Advances in Agricultural Researches 2012.v.17(2)Summary: The present research was carried out at the Experimental Farm of Nubaria Agricultural Research Station, North Tahrir, Egypt during the two consecutive seasons of 2009/2010 and 2010/2011. The obtained data e.g. yield and its components, agronomic traits and plant water potential were summarized as follows: 1- The six wheat parents and their fifteen crosses significantly differed in all studied characters. 2- Crosses of wheat genotypes recorded heterosis percentage as positive and negative values ranged from (18.03to 70.93 %) for grain vield, (-24.24to 26.47%)or no. of spikes/plant, (-32.63to 8.42 %) for no. of grains / spike, (-11.98to 32.57 %) for 100 - grain weight, (-49.50 to 8.25 %) for straw yield, (-10.44 to 1.17 %) for biological yield, (-5.72to 2.42%) for harvest index,(-7.17 to 25.29 %) for grain protein content and finally (-4.85to 10.64 %) for plant water potential. 3-Most of the crosses revealed significant general combining ability (G.C.A) for all studied characters.

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The present research was carried out at the Experimental Farm of Nubaria Agricultural Research Station, North Tahrir, Egypt during the two consecutive seasons of 2009/2010 and 2010/2011. The obtained data e.g. yield and its components, agronomic traits and plant water potential were summarized as follows: 1- The six wheat parents and their fifteen crosses significantly differed in all studied characters. 2- Crosses of wheat genotypes recorded heterosis percentage as positive and negative values ranged from (18.03to 70.93 %) for grain vield, (-24.24to 26.47%)or no. of spikes/plant, (-32.63to 8.42 %) for no. of grains / spike, (-11.98to 32.57 %) for 100 - grain weight, (-49.50 to 8.25 %) for straw yield, (-10.44 to 1.17 %) for biological yield, (-5.72to 2.42%) for harvest index,(-7.17 to 25.29 %) for grain protein content and finally (-4.85to 10.64 %) for plant water potential. 3-Most of the crosses revealed significant general combining ability (G.C.A) for all studied characters.

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