Heterosis and Combining Ability in Grain Sorghum [Sorghum Bicolor (L.) Moenchj
Abstract: The present study used seven CMS and seven restorer lines of grain sorghum [(Sorghum bicolor (L.) Moench] , their forty-nine single cross hybrids and check hybrid Shandaweel-6 were evaluat¬ed in field trials in 2002 at Shandaweel and Sids Agric Res. Stations for days to 50% flowering, plant height, leaf area/plant, panicle length and width, 1000 grain weight and grain yield/plant, to assess the general combining ability of the parents and heterosis and specific combining ability of their crosses.
Combined analysis of variance over locations indicated that the mean parents and crosses were highly significant for all studied characters. The parents x locations interaction variance was significant for leaf area, panicle length and 1000-grain weight but the crosses x locations interaction variance was highly significant for all characters.

Line x tester analysis indicated that the lines ISCA-88003, ICSR-237 and ICSR-92003 were the highest significant GCA effects for grain yield. Specific combining ability variance was more important for all studied traits except plant height.
Better parent heterosis was generally manifested for plant height, panicle length and width and grain yield/plant. Heterosis for 1000-grain weight was observed for few of the crosses. The highest positive significant heterosis for grain yield (87.88%) was manifested by the cross (ICSA-37 x ICSR-93023).
Average grain yield/plant of the crosses (ICSA-37 x ICSR-93023), (ICSA-1 x ICSR-93023) and (ICSA-1 x ICSR-93004) suggested further testing for commercial use.
Publication year 2004
Pages 165:183.
Availability location معهد بحوث المحاصيل الحقليه - مركز البحوث الزراعية - ش الجامعه - الجيزة
Availability number
Organization Name
serial title Assiut Journal of Agricultural Science,
Author(s) from ARC
External authors (outside ARC)
    باهى راغب بخيت قسم المحاصيل – كلية الزراعة – جامعة اسيوط
    أنعام حلمى جلال قسم المحاصيل – كلية الزراعة – جامعة اسيوط
Agris Categories Miscellaneous plant disordersPests of plants
AGROVOC
TERMS		 Heterosis. Sorghum bicolor.
Publication Type Journal
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