玉米自交系一次多繁好处多

• 作 者: 王天傅 丛桂五
• 机 构: 内蒙昭盟农科所,内蒙喀喇沁旗良种场,
• 出 处: 农业科技通讯
• 发表日期: 1982年05期
• 关键词: 自交系 亲本自交系 去杂去劣 杂交组合 纯度 严格隔离 杂交种 良种繁殖 量大 提纯复壮

为获得质量好、纯度高、数量多的玉米自交系种子,除一般采用的提纯复壮、去杂去劣、严格隔离等方法外,以下两项措施很有实用价值。一、一次多繁应用几年根据本地区推广的玉米杂交组合,确定出用量大、应用时间可能长的亲本自交系,由一个县良种繁殖场负责繁殖,在良好的贮存条件下,保存到底。办法是把这个自交系的每次繁殖面积加大几倍,让它一次繁殖出的自交系种子就够几年供应本场、本县、外县繁

In order to obtain good quality, high purity, large number of maize inbred seeds, in addition to the general use of purification and rejuvenation, to miscellaneous, strict isolation and other methods, the following two measures of great practical value. First, the more frequent application of a few years According to the promotion of maize hybrids in the region to determine the large amount of application time may be long parent inbred lines, breed by a county breeding ground is responsible for reproduction, in good storage conditions, save in the end . The solution is to multiply the breeding area of ​​each inbred line by several times so that the seed of the inbred line that breeds it once in a few years will be enough to supply the field,