1989年日本蚕品种

来源 :国外农学:蚕业 | 被引量 : 0次 | 上传用户:huimiandiadia
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<正> 据1989年调查,日本现行原原种共有149种,其中日本系统品种73种(内适合稚蚕人工饲料有31种,限性品种3种);中国系统品种76种(内适合稚蚕人工饲料有32种,限性品种31种)。都是二化性白茧种。杂交组合共64对,其中春用种35对(内适合稚蚕人工饲料有14对,单限性品种14对,双限性品种3对,更多还原
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