论文部分内容阅读
1.父母本的配置:目前杂交萝卜制种一般采用雄性不育系作母本,优良的自交系作父本,父母本的配置比例一般是1:5。但由于父本一般较母本晚薹,长势较母本弱,为了使父本不被母本遮盖住,以利于蜜蜂授粉,大出生产上父母本的配置比例一般是2:10,父本2行单独起小畦栽培,这种栽培方式同时也便于收割种子时父母本容易识别。田间栽置密度应达2200～2800株/亩。
1. Parents of the configuration: At present hybrid seed production commonly used male sterile line as the female parent, good inbred line father, parental configuration ratio is generally 1: 5. However, because the male parent is generally more late than the female parent, the growth is weaker than that of the female parent. In order for the male parent not to be covered by the female parent in order to facilitate the pollination of the bees, the proportion of the large parental parents in production is generally 2:10. Line 2 is cultivated separately from the crop, which is also easy for parents to recognize when harvesting seeds. Field planting density should reach 2200 ~ 2800 plants / mu.