论文部分内容阅读
萝卜胞质不育系是具有100%不育株率的稳定系。利用不育系配制杂交种时,只要在隔离区内将不育系作为母本与父本按一定行比定植,则从不育系收获的种子100%都是杂交一代种,笔者从事萝卜不育系杂交制种多年。现将其制种技术简述如下: 1 采种方式萝卜是低温长日照植物,种株必须经过低温春化阶段才能抽薹开花。萝卜雄性不育系杂交制种一般采用半成株法,年前言母株,第二年春定植。 1.1 适时播种:萝卜采种在冬前应使母株单重生长不宜过大,否则因
Radish cytoplasmic male sterile line is a stable line with 100% sterile line rate. The use of sterile lines hybrids, as long as the male sterile line in the isolation zone as the mother and father by a certain line colonization, the 100% of the seeds harvested from sterile lines are hybrids, the author engaged in radish is not Yu Department of hybrid seed production for many years. Now its seed production technology is briefly described as follows: 1 collection methods radish is a low temperature long sunshine plants, seedlings must be low temperature vernalization stage in order to bolting flowering. Radish male sterile lines generally use semi-hybrid seed production method, years ago, the mother plant, the second year of spring planting. 1.1 timely sowing: Seed collection of radish should be made in winter before the single parent growth should not be too large, otherwise due