首例航天诱变玉米细胞核雄性不育株与可育株的株高生长分析

以航天诱变玉米细胞核雄性不育株的杂交F2 及姊妹交后代群体为材料 ,对育性分离群体中两种育性植株的株高及生长动态进行了分析。结果表明 ,在整个生育期的不同发育阶段两种育性植株的株高差异均达极显著水平 ,在发育的早期阶段 ,二者差异较小 ,随着发育进程的推进 ,株高的差异逐渐加大。进一步对两种育性植株的株高增长曲线进行分析 ,发现二者的最大生长速度存在差别。

ANALYSIS OF PLANT HEIGHT BETWEEN MALE STERILE PLANTS OBTAINED BY SPACE FLIGHT AND MALE FERTILE PLANTS IN MAIZE

F2 fertility segregation population and the sister|cross fertility segregation population,which descended from the male sterile material,were analysed by their plant height of different growing stage between 2 populations of male sterile plants and male fertile plants.The plant height of different fertility plants come to the significance at 0^01 level in different stage through the whole growing period.The differences become more and more large with the development of plants,the maximum difference happens in adult stage.The increasing amount of different stage also shows significance at 0^01 level between two kinds of different fertility plants.