水稻两用核不育系繁殖中自生稻的成因及防控技术

在水稻两用核不育系亲本繁殖中,自生稻的发生会对种子纯度构成较大质量风险.通过对自生稻的产生原因及对亲本种子危害的分析,结合保山当地农业生产现状,提出"创新作物种植模式、做好品种布局规划、强化前茬作物管理、推广集中育秧技术、栽前灌溉促进发芽、严格进行田间除杂"等措施,以预防自生稻的发生及危害,确保水稻种子纯度.

Causes of Volunteer Rice in the Propagation of Dual-Purpose Genic Male Sterile Lines and Its Prevention and Control Techniques

In the parental propagation of dual-purpose genic male sterile lines of rice, the occurrence of volunteer rice poses a greater risk to seed purity. Through the analysis of the causes of volunteer rice and the damage to the parent seeds, combined with the current situation of agricultural production in Baoshan, we proposed the following measures, including innovation crop planting models, doing a good job in variety layout plan, strengthening the management of previous crops, promoting centralized seedling raising technology, irrigating before planting to promote germination, and taking strict measures to remove impurities in the field, etc, to prevent the occurrence and harm of self-grown rice, ensured the seed purity of rice.