水稻胚乳植株离体培养简报

• 作 者: 李朝灿 林伟峰
• 机 构: 福建省农科院稻麦所,福建省农科院稻麦所
• 出 处: 福建农业科技
• 发表日期: 1982年03期
• 关键词: 水稻胚乳 离体培养 籼型 杂种优势 千粒重 三系 粒数 大粒型 六倍体 五十年代

我国籼型二倍体杂交水稻的培育成功及其在生产上的大面积推广,为水稻生产的大幅度增产发挥了重大作用。但目前现有的二倍体杂交水稻虽具有蘖强、穗大、粒多等杂种优势,较好地统一了大穗与多穗的矛盾,但其千粒重(26～28克)尚无明显的优势。因此,在一定的穗粒数基础上,注重培育大粒型杂交水稻,特别是培育多倍体水稻三系,以实现杂交水稻产量优势的再次飞跃,这是十分诱人的探索。五十年代末期,

The successful cultivation of indica diploid hybrid rice in China and the large-scale popularization in its production have played a significant role in the substantial increase of rice production. However, the current diploid hybrid rice has the advantages of more tillers, bigger ears and more grains, which unifies the contradiction between big ears and multiple ears. However, there is no significant difference in the thousand-kernel weight (26-28 grams) Advantage. Therefore, on the basis of a certain number of grain per spike, it is very tempting to pay attention to cultivating large grain hybrid rice, especially cultivating polyploid rice three lines in order to achieve another leap in yield superiority of hybrid rice. The late fifties,