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近年来,我国杂交水稻的栽培面积越来越大,对农业生产的发展起了很大作用。但由于在杂交水稻育种过程中考虑丰产性较多,对组合的抗病虫性研究较少,以致目前推广中的某些杂交水稻组合抗病虫能力很差,给农业生产造成了损失。鉴于稻褐飞虱(Nilapa-rvata lugens Stal)对水稻的危害日益加重,我们在1977、1978两年中以湖南省试验和推广的63个杂交水稻组合和亲本为材料,研究了它们对褐飞虱的抗性表现,为杂交水稻的抗性育种和抗虫杂交水稻的推广提供一些参考材料。
In recent years, the growing area of hybrid rice in China has played an important role in the development of agricultural production. However, due to the high yield of hybrid rice in the breeding process, there is little research on the combinatorial resistance to pests and diseases. As a result, some hybrid rice combinations currently under promotion have poor resistance to pests and diseases, which has caused losses to agricultural production. In view of the increasing damage to rice by Nilapa-rvata lugens Stal, we studied the resistance to brown planthopper (Nilaparvata lugens) in 63 hybrid rice combinations and their parents tested and popularized in Hunan Province in 1977 and 1978 Performance, providing some reference materials for the resistant breeding of hybrid rice and popularization of insect-resistant hybrid rice.