|Title:||Relationship between Seedling Length and Plant Height and its Impact on the Selection of Short Plant in Rice||Other Titles:||水稻苗高與株高之相關及其對選拔短稈植株之影響||Authors:||W.L. Chang
|Issue Date:||2-Sep-1970||Publisher:||農業試驗所||Journal Volume:||19||Journal Issue:||3||Start page/Pages:||14-25||Source:||農業研究||Abstract:||
A total of 95 and 94 varieties of rice were randomly selected in the first and the second crops of 1969 respectively for the calculation of correlation coefficients between seedling length and plant height. Most correlations reached the significant level, although the magnitude of the correlations decreased with the development of rice plants.
Rice seedlings of three F2 populations were visually classified into tall, intermediate, and short groups before transplanting to find out whether rice seedlings of different seedling length would result in matured plant with different plant height. It was found that tall seedlings generally produced tall plants whereas short plants developed from short seedlings. The differences in mean seedling length as well as mean plant height were highly significant among selected populations. Genetic variances of plant height at maturing stage for selected F2 populations were considerably smaller than those of unselected F2 populations for all crosses in the first crop, whereas in the second crop, the reverse was generally true. Heritability percentages estimated for seedling length ranged from nil to 40.4%, varying with crosses and crops.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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