油菜 收量에 關與하는 主要 形質間의 相關關係와 經路係數 및 遺傳力 調査

The Relationship between the Characters and the Influence of Each Character on the Yield of Rape, Correlation Coefficients, Path Coefficients and Heritability

A significant positive correlation was found between lodging resistant and number of pods per ear, length of ear and number of pods per ear in the early varieties. On the other hand a highly signifiant positive correlation was found between seed yield and length of ear, valuable branches number of pods per car and seed content in the late varieties. It second to be clear that length of ear, number of pods per ear, seed content, 1,000 grain weight and valuable branches have direct and positive influence on the yield of rape varieties. In direct influence was observed between length of ear and seed content number of pods per ear and 1,000 grain weight. Heritability of length of ear was 31.32% in the early varieties though increasing to 42.87% in the late varieties. Heritability of number of 1st branch and number of 2nd branch were considerably higher 42.56~47.71% in the early varieties and 34.87~54.29% in the late varieties, respectively. Heritabilily of number of pods per ear was 31.87% in the late varieties though increasing to 47.91% in the early varieties.