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.
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.
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。
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