论文部分内容阅读
(一) 在大豆田间偶尔可以发现大豆雄性不育株,其中有的是部分雄性不育,在这种植株上结有5—6个少量的豆荚。在引种外地品种时和在某些杂交组合或辐射杂交后代中往往见到这种现象。Hadley和Starnes(1964)首先报导了由于染色体联会上的障碍所造成的雄性不育。他们还认为在许多情况下不育性与某些变态是相关的,如矮态、短柔毛的缺乏。通过部分雄性不育植株与可育植株进行杂交的实验,可以说明这种部分的雄性不育是受细胞核控制的。根据醋酸洋红等染色方法对花粉进行检查,发现在部分雄性不育中只有5—10％的花粉是有活力的。
(A) Soybean male sterile plants may occasionally be found in the soybean field, some of which are partially male sterile, with 5-6 small pods on the plant. This is often the case when introducing exotic breeds and in some crossbreeding or radiation hybrid progeny. Hadley and Starnes (1964) first reported male infertility due to disorders at the chromosome association. They also believe that in many cases infertility is associated with certain metamorphoses, such as lack of short-bodied, pubescent hair. Experiments that crossed parts of male sterile plants with fertile plants showed that male sterility of such parts is controlled by the nucleus. Pollen was examined according to the staining method of magenta such as acetic acid and found that only 5-10% of the pollen in part of male sterile was viable.