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母根留种是结球白菜保持优良品种特性,加速良种繁殖,提高产量,促进生产发展的物质基础。但是,我省结球百菜母根留种技术还未过关,病虫危害严重,致使成活率很低,影响了结球白菜良种的推广和发展。鉴于此因,我们从一九七六年开展了提高结白菜母根留种成活率的试验。经过三年来对六个品种(烟台、松岛一号、无双、长岗
Remaining parent seed is the material basis for maintaining the characteristics of elite cabbage and accelerating seed multiplication, increasing yield and promoting production and development. However, in our province, the technique of keeping the seeds of a hundred Chinese cabbages for breeding has not yet been passed, and the pests and diseases are seriously endangered. As a result, the survival rate is very low, which affects the popularization and development of the improved cabbage varieties. In view of this, we conducted an experiment in 1976 to increase the survival rate of conchocarp breeding. After three years of six varieties (Yantai, Songdo One, Warriors, Chang Kong