胡蘿蔔在三栽培地區穩定性之研究

Studies on Stability of Carrot in Three Locations

本試驗使用九個胡蘿蔔品種栽培於三個地區，凋查六個性狀，以估算各性狀之穩定性介量、遺傳率、表現型及遺傳型相關係數，結果如下：（一）各性狀經變方分析結果顯示，各品種與栽培地區的交感效應變方均呈極顯著。（二）性狀穩定性介值估算結果，大型品種葉長及葉重具有穩定性，中型品種所有性狀，均不具穩定性，小型品種之葉數、葉重、根長及根重具有穩定性。（三）遺傳率估算結果，以葉重及根重具有最高的遺傳率。（四）各性狀之遺傳相關值均較表現型相關為高，根重、根長、根徑與葉數、葉長、葉重均具有正相關關係，根長與根重、根徑亦具有正相關關係存在。

Six characters in nine varieties of carrot were investigated for studying their stability parameters, heritability, phenotypic and genotypic correlations among various characters. Results were summarized as follow: (1) From the analysis of variance for six characters, it was found that the interactions between varieties and cultural environment were highly significant. (2) Using Finlay and Eberhart's stability analysis indicated that small type variety was snore stable than medium and large type varieties in six characters. (3) High heritabilities (99.3% and 59.6%) were obtained for leaf weight and root weight. (4) In general, genotypic correlation was found to be higher than phenotypic correlation in six characters. Leaf weight, leaf length, leaf number were correlated with root length, root size and root weight. Root length was correlated with root weight and root size.