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《Northern Horticulture》 2008-05
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Relationship Between Genetic Distance and Heterosis on Melon

CHEN Ke-nong1,JI Peng2,SHENG Yun-yan1(1.Horticulture Department,Northeast Agriculture University,Harbin,Heilongjiang 150030,China;2.Plant Technology Department,August First Land Reclamation University,Daqing,Heilongjiang 163319,China)  
9 melons from different origin were selected as female parents and premature,high yield melon accession Tianshuai and Ribenxiaoqingyu as male parents,crossed 18 hybrids and estimated the morphological characters on hybrid progeny.The result showed: weight per melon,ratio of sugar and acid,soluble content and Vc content were notable variation on the level of 0.05 and 0.01 except for thickness of sarcocarp and hardness.After analysis of heterosis of all morphological characters,genetic distance and heterosis had not positive correlation,the progeny from Jingpinbaitangguan and Tianshuai which had relative genetic distance parents had the high heterosis on most morphological characters.
【CateGory Index】: S652
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