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題名 | 甜椒的遺傳與育種行為之研究(6):數量性狀之路徑分析 |
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作者姓名(中文) | 鍾維榮; | 書刊名 | 臺中區農業改良場研究彙報 |
卷期 | 5 1981.06[民70.06] |
頁次 | 頁30-35 |
關鍵詞 | 育種; 甜椒; 遺傳; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗使用四個甜椒品種,進行全互交組合(不含反交)之六個雜交組合 之P1、P2、F1及F2世代為材料。調查15個數量性狀,估算各性狀之相關係數 及路徑係數結果: 1.各性狀之遺傳相關值均較表現型相關為高。產量與果數、果長、果寬及果肉重 有顯著的正相關,而與成熟期及始花期則呈負相關關係。 2.路徑係數分析結果顯示,產量主要由果數和果重決定,果數對產量有很大的直 接效應與間接效應,而其間接效應經由果長及果重而影響產量。 |
英文摘要 | Fifteen characters were investigated to study their genetic behavior in the parents, F1 and F2 generation of a diallel cross (not include the reciprocal cross) involving four capsicum annuum varieties. Data were used to estimate the phenotypic and genotypic correlations among various characters and path coefficient among yield and yield components. Results are summarized as follow: 1. In general, genotypic correlation were found to be higher than phenotypic. Yield was significantly correlated with between number of fruit, fruit width and flest weight, and was correlated negatively with days to first flower and fruit maturity. 2. Path analysis showed that yield was mainly depended on the number and weight of the fruits. The fruit number have an appreciable direct and indirect effect on yield and influenced the yield through fruit weight and fruit length. |
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