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杂交稻的育性问题是一个十分重要的问题.新质源不育系的选育、野败不育系的转育及种子提纯中,都要遇到育性的鉴定问题,育性鉴定方法的准确性,直接影响研究结果的可靠性.过去对育性鉴定所采取的方法:一是花粉镜检;二是套袋自交;三是调查田间结实率.在育性鉴定的三个方法中,究竟那个方法可靠?则很少有人研究.在育性鉴定的具体做法上各地不尽一致.有人提出用套袋自交作为衡量的主要指标.有人提出用花粉育性作为衡量育性的主要指标.作者为了弄清这个问题,运用遗传参数统计法,进行了遗传力的估算,根据研究结果,对杂交稻育性鉴定方法提出了评价.
The fertility problem of hybrid rice is a very important issue.The selection of new CMS lines, the breeding of wild-sterile lines and the purification of seed must all encounter the problem of fertility identification, fertility identification method Of the accuracy of a direct impact on the reliability of the results of the past fertility identification methods adopted: First, pollen microscopy; second bagging self; third is to investigate the rate of field setting in fertility identification of the three methods However, few studies have been conducted, and there have been differences in the specific practices of fertility identification.It has been suggested that bagging selfing should be used as the main measure, and it has been proposed to use pollen fertility as a measure of fertility In order to clarify this problem, the authors used genetic parameter statistics to estimate the heritability, and based on the results, the evaluation of hybrid rice fertility evaluation was proposed.