论文部分内容阅读
种子质量标准化是“四化一供”的重要组成部分。实践证明。抓好原种生产是实现种子标准化的基础,是更新品种,提高种子质量的前提条件。 从武汉市种子站1981年所组织的全市早稻广陆矮4号原种质量鉴定结果来看,供试品种纯度、净度、整齐度、发芽率比大田用种明显提高,而典型性却较差,和标准相比,都表现穗子变短,剑叶变长,剑叶角度变大,粒型变小。可以想见,水稻原种生产是损纯容易复壮难。为了改进原种生产,提高原种质量,特就以下三个问题提点看法:
Standardization of seed quality is an important part of the “four modernizations”. Practice proved. Grasp the production of primary species is the basis for the standardization of seeds, is to update the varieties, improve the quality of the seeds of the prerequisite. From the results of the identification of the elite quality of the early rice Guangluan 4 in Wuhan city, which was organized by the seed station in Wuhan in 1981, the purity, clarity, uniformity and germination rate of the cultivars tested were significantly higher than those in the field, but the typical ones were more Poor, compared with the standard, are shorter ears, flagging leaves longer, the larger the angle of the flag leaves, grain size smaller. Can be imagined, the original production of rice is easy to rejuvenate the complex loss of hard. In order to improve the production of original species and improve the quality of the original species, we put forward some suggestions on the following three issues: