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限性普斑家蚕品种的经济性状改良效果

SICHUAN CANYE(2018)

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Abstract
针对蚕品种“峨·眉×风·光”的中国品系峨、眉的丝长和疵点性状,通过活蛹缫丝方法进行改良,选丝长长、疵点少的个体制种继代,连续进行两季.2017年秋季开展杂交试验,改良后的“峨·眉×风·光”一代杂交种丝长1153.9米,纤度2.593dtex,净度98.12分,未改良的“峨·眉×风·光”杂交种丝长1008.8米,纤度2.914dtex,净度为94.37分.试验表明,改良后的“峨·眉×风·光”净度和丝长显著提高,纤度变细,纤度均方差变小,改良效果明显.
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