頁籤選單縮合
題名 | 大豆種間雜種後裔性狀遺傳行為之研究(2)=Studies on the Genetinc Behavior of both Quantitative and Qualitative Characters in the Progeny of an Interspecific Cross of Soybean, Glycine max*G. formosana (Second report) |
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作者 | 湯文通; 李水龍; | 書刊名 | 中華農學會報 |
卷期 | 42 民52.06 |
頁次 | 頁13-25 |
關鍵詞 | 種間雜種後裔; 性狀遺傳行為; |
語文 | 中文(Chinese) |
英文摘要 | The genetic behavior of both quantitative and qualitative characters in the progeny of Glycine max-formosana were summarized as follows: 1. The five quantitative characters, namely, flowering time, maturity date, period from flowering to maturity, seed size and hard seed percentage, were carefully investigated all throughout the study. 2. Scaling test showed that neither the original scale nor the logarithmic was adequate for the quantitative characters and for convenience, they were analyzed on the original scale. 3. Estimates of the additive genetic effects and dominace variances were obtained from the segregated generations. The variation on flowering time and maturity date seemed to be caused by dominance effects, while that of seed size was caused by additive effects. Dominance effects were rather great in the variation of period from flowering to maturity and hard seed percentage. 4. The linkage test was carried out with MATHER'S method (1949). The results indicated that linkage was of significant importance only for seed size, but not obviously for flowering time, maturity date and period from flowering to maturity. 5. Heritability of the five quantitative characters was estimated by different formulae. In general, the heritability values in broad sense were higher than in narrow sense. 6. The phenotypic, genotypic and environmental correlation coefficients were calculated from all possible combinations of the five quantitative characters. In general, the genotypic correlation coefficients were higher than the phenotypic, and that of phenotypic were higher than the environmental. 7. Three different formulae were used in estimating the number of effective factors. The unequal values obtained indicated that the effects of individual factors and dominant units (i.e. the d and h increasements) were highly variable. Therefore, the estimated values were lower than the actual values. 8. Five qualitative characters, namely, young stem color, flower color, pod color, bloom on seed coat and seed coat color, showed simple genetic behaviors as reported by other investigators. No evidence of linkage relationship was detected. |
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