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Analysis of Heterosis Forecast and Correlation and Combining Ability on Seedling Characters of Pepper

HOU Jin-zhu1,WANG Lan-lan2 (1.Department of Agronomy,Gansu Agricultural University,Lanzhou,Gansu 730070,China;2.Vegetable Institute,Gansu Academy of Agriicultural Sciences,Lanzhou,Gansu 730070,China)  
Analysis of heterosis,correlation and combining ability of eleven characters in sixteen hybrids was carried followed a 4×4 uncomplete diallele crossing,which included four female parents and four male parents.The results showed that: Give emphasis to R21 and R14 combinations,which had good performance in the seedling characters;eleven characters had heterosis in certain degree.Dry weight of overground part and root,which could be considered as forecast guidline of seedling heterosis,had high over super-parents heterosis.There were normally significant correlations between individual yield and ten characters.There were extremely significant correlations except for stem diameter,the ratio of weekly leaf yield,fresh weight of root.They had high correlation coefficients between individual yield and dry weight of overground part and that of root,which arrived at 0.517* *,0.505* * respectively.The analysis of combining ability showed that there were R21,R14,R13,R10 combinations with good total combining ability that could be used in cross-breeding.Each of R1,R6 had good performance in general combining ability that could be considered as excellent parents in cross-breeding.
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