白三叶和纳罗克狗尾草种子繁殖关键技术研究

针对云南牧草种子繁殖技术薄弱等问题，首次利用射线辐照等诱变处理、生物技术等手段，对云南草地生态建设和草地畜牧业中大量使用的白三叶、纳罗克狗尾草种质资源遗传多样性进行研究，开展优质高产品种选育；根据云南白三叶和狗尾草种子生产中存在的种子产量低、质量差以及杂草难以控制和病虫害严重等实际问题，开展了白三叶和狗尾草种子生产的水肥调控、杂草控制、生长调节剂、果后管理、种子收获及清选加工技术等一系列研究，为云南省牧草种子生产的产业化和优良品系或品种的选育提供技术支持。

Development of Key Technologies for Trifolium repens Linn. and Setaria anceps cv. Narok Seed Production

Mutation treatment with irradiation, and biotechnology were first used to analyze the diversity of germplasm resources of Trifolium repens Linn. and Setaria anceps cv. Narok, which are widely used in ecological grassland construction and livestock farming in grassland in Yunnan Province, and to conduct breeding and selection of desirable high-yielding varieties of these two pastures. Moreover, according to the problems arising from the seed production of these two pastures, such as low seed yield, poor seed quality, hard weeds, serious diseases and pests, etc.. a series of researches on these two pastures were conducted in the aspects of water and fertilizer management, weed control, growth regulators, postharvest management, seed harvest, seed rinsing and processing, etc. These researches will provide strong technical supports to commercialization of pasture seed production and breeding and selection of excellent lines or varieties of pastures in Yunnan Province.