种质资源的收集和研究是育种工作的基础。
Collections and researches of germplasm are foundation of the breeding work.
针对玉米种质资源狭窄的客观现实，我国的许多玉米育种工作者从收集地方种质，引进外来种质入手，为拓宽玉米种质资源作了大量工作。
In order to broaden the germplasm resource of maize, many maize breeding researchers have done much work to collect local germplasm and introduce excellent exotic germplasm to China.
综合介绍了蔬菜抗虫种质资源的收集和鉴定方法以及近年来国内外在蔬菜抗虫育种方面取得的最新进展。
This paper summarized the collection and identification of pest resistant germplasm resources, the recent progress of breeding for pest resistance in vegetable crops at home and abroad.
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