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1幼苗鉴定法幼苗鉴定方法主要有两个途径:一种途径是提供给植株以加速发育的条件(类似于田间小区鉴定,只是所需时间较短),当幼苗达到适宜评价的发育阶段时,对全部或部分幼苗进行鉴定;另一种途径是让植株生长在特殊的逆境条件下,测定不同品种反应来鉴别不同品种。2种子形态鉴定种子形态鉴定省时、简单、快速、直观,但其准确性较差,受环境条件和发育状况影响较大,尤其是母本相同,粒型粒色相近的品种难以准确确定。对于种质基础较窄的品种,品种间形态差异更小,品种鉴定更是困难。形态鉴定方法简单、快速、成本低、重复性好。但大部分情况下,只能将种子分成几类,适用范围较窄。
A seedling identification method seedling identification There are two main ways: One way is to provide plants to accelerate the development of conditions (similar to the field of identification, but the shorter time required), when the seedlings reach the appropriate evaluation of the developmental stages, Identification of all or part of the seedlings; the other way is to allow plants to grow under special adverse conditions, the determination of different varieties of reactions to identify different varieties. 2 Seed morphology identification Seed morphological identification is time-saving, simple, rapid and intuitive, but its accuracy is poor. It is greatly affected by environmental conditions and developmental conditions, especially the same female parent. For narrower germplasm base varieties, there is less difference in morphological characters among varieties, and it is more difficult to identify varieties. Morphological identification method is simple, fast, low cost, good repeatability. However, in most cases, only the seeds can be divided into several categories, the scope of application is relatively narrow.