论文部分内容阅读
在广州自然条件下，光温敏核不育水稻的育性受株龄的影响，株龄较长的植株，不育光温临界值较高，不育期较短。不同的不育系，这一特性差异较大。株龄对育性的影响是一个逐步累加的量变过程，株龄相差20d育性就显出差异，随着株龄差增大，育性差异增加。当株龄的差值达到一定程度后，对育性的影响会趋于稳定或反方向变化。
Under the natural conditions in Guangzhou, the fertility of the photosynthetic thermo-sensitive genic male sterile rice was influenced by the age of the plant. Plants with longer plant age had higher critical value of sterile light and temperature and shorter sterile period. Different male sterile lines, this feature is quite different. The influence of plant age on fertility is a gradual accumulation of the quantitative process, fertility difference between the age of 20d show differences, with the age difference increases, increased fertility differences. When the age difference reaches a certain level, the effect on fertility tends to be stable or the opposite direction.