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一、杂交水稻技术需要有新的突破当前我国主要推广杂交稻是利用“三系杂交稻”(即不育系、保持系及恢复系)。由于目前在生产上可利用的不育系数量有限,而且多数抗性及米质均不很理想,因此大大限制了杂种优势组合的选配广度,也不能适应当前对优质、多抗、高产育种的高标准要求。如在本省原先推广的一些杂交稻,因不抗稻瘟病而影响进一步的推广。因此除了积极选育新的更理想的不育系及其相应的保持系和恢复系外,探讨其它途径是十分必要的。
First, hybrid rice technology needs new breakthroughs At present, China is the main promotion of hybrid rice is the use of “three-line hybrid rice” (ie, sterile lines, maintainers and restorers). Due to the limited quantity of CMS available in production at present and most of the resistance and quality of rice are not very satisfactory, the breadth of the combinations of heterosis is greatly limited, and it is also unable to adapt to current high quality, multi-resistance, high-yield breeding High standards. Some hybrid rice originally promoted in the province as a result of non-resistance to rice blast affected further promotion. Therefore, in addition to the positive selection of new and more desirable sterile lines and their corresponding maintainer and restorers, to explore other ways is very necessary.