水稻器官干物质运转特性的因子分析

本文对33个水稻品种（组合）5个器官的干物质转运率和移动率（共10个性状）进行了因子分析，结果表明，5个器官的干物质运转特性均可自成主因子，均具有重要作用，主因子1为茎杆运转因子，主因子2为叶片运转因子，主因子3为功能叶片运转因子，主因子4为功能叶外其它叶片运转因子，主因子5为叶鞘运转因子．除主因子1具有较大的方差贡献外，其余主因子方差贡献接近．杂交F1比常规品种具有更大的主因子l得分，部分常规品种也具有较高的主因子l得分，可作为亲本加以利用．

THE FACTOR ANALYSIS ON CHARACTERISTICS OF THE ORGAN DRY MATTER TRANSPORT IN RICE

Dry matter transporting rate and moving rate of 5 organs of 34 rice varieties or hybrid rices are studied in this paper using the fator analysis method.The results expressed that the characteristics of matter transport of 5 organs were important and all of them could be the main factor respectively.The main factor 1 was the factor of the stem transport;the factor 2 was the factor of the leaves transport;the factor 3 was the factor of the function leaves transport;the factor 4 was the factor of the transport of the leaves except the function leaves;and the main factor 5 was the factor of the sheath transport.The main factor 1 was a greater contributed to varience than the other factors which were basically equal.Hybrid rice gained more cents than varieties at the main factor 1.Part of varieties were used as parents because they gained great cents at the main factor 1 and 2.