杂草稻的研究现状与展望

Prospect and Present Situation of Weedy Rice Research

杂草稻属于野生稻与栽培稻中间类型。一方面,由于杂草稻与栽培稻之间的前期形态、生理生化特性相似,很难化学控制其在稻田发生,影响水稻产量与品质;另一方面,杂草稻长期自然生长繁衍,其抗病、虫、寒、旱、盐碱等特性优于栽培稻,而且与栽培稻的亲缘关系相对接近,是一种改良栽培稻抗逆性的天然基因库。

The weedy rice is a type of rice between the wild rice and cultural rice. On the one hand, because the weedy rice is similar with cultural rice in the appearance and physiology characteristic at the earlier stage, it is hard to control its occurrence in the field. Therefore, the yield and quality of cultural rice are influenced. On the other hand, the weedy rice has been grown and reproduced in the natural condition for long time, so its characteristics such as the resistance of the disease, insectpest, coldness, drought and salinization are superior to the cultural rice. Also, the weedy rice is close to the cuhural rice in the related relationship, it is a natural gene resource to improve the resistance of cultural rice.