杂草稻研究现状及利用展望

杂草稻作为一种稻田伴生杂草，严重影响了水稻的产量和稻米品质。尤其是近年来随着直播稻的推广和机械化程度的提高，杂草稻的危害有加重的趋势。同时，杂草稻的抗逆性非常强，与水稻的亲缘关系也非常近，是一个极有利用价值的天然基因库，是水稻育种的宝贵资源。本文就杂草稻的生物学特性、分布、起源、分类、防除等方面的研究做了概述，并对其利用前景进行展望，提出了有待进一步深入研究的问题。

Research status and application prospects of the weedy rice

As a companion weed in paddy fields, the weedy rice seriously affect the yield and quality of cultivated rice, especially with the development of direct seeded rice and the improvement of mechanization in recent years. At the same time, the weedy rice has a very strong resistant capability and close genetic relationships with cultivated rice, and can potentially be used as a natural gene bank and precious resource in rice breeding. The researches in the biological characteristics, distribution, origin, classification and control of weedy rice were reviewed in this paper, and the prospects for its future utilization were discussed.