| 春秋兼用蚕品种57A·57B、24·46的育成及其四元杂交种的选配 |
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| 引用本文： | 何斯美 夏玲芝 等. 春秋兼用蚕品种57A·57B、24·46的育成及其四元杂交种的选配[J]. 蚕业科学, 1990, 16(1): 15-20 |
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| 作者姓名： | 何斯美 夏玲芝 等 |
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| 作者单位： | 中国农业科学院蚕业研究所(何斯美，夏玲芝，严孝银，糜懿殿，林泽华)，中国农业科学院蚕业研究所(潘沈元) |
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| 摘 要： | 采用杂交育种方法,在春、夏、秋不同环境下定向培育,经严格的后代选择,育成二个中系限性品种57A、57B和二个日系品种24、46,然后运用杂种强势的原理,选配成四元杂交种57A·57B×24·46.经多次鉴定结果表明,该四元杂交种的产量、产值比对照种提高3—4%;且体质强健,对叶质要求不高,制种较容易,丝质优良,是春秋兼用的优良蚕品种.
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| 关 键 词： | 家蚕 品种 57A·57B 24·46 育种 |
THE BREEDING OF THE SILKWORM VARIETIES “57A · 57B”,“24 · 46” ANO THEIR HYBRIDS FOR BOTH SPRING AND AUTUMN REARING |
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| He Si-mei Xia Ling-zhi Yan Xiao-yin Mi Yi-dian Lin Ze-hua Pan Shen-yuan. THE BREEDING OF THE SILKWORM VARIETIES “57A · 57B”,“24 · 46” ANO THEIR HYBRIDS FOR BOTH SPRING AND AUTUMN REARING[J]. Acta Sericologica Sinica, 1990, 16(1): 15-20 |
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| Authors: | He Si-mei Xia Ling-zhi Yan Xiao-yin Mi Yi-dian Lin Ze-hua Pan Shen-yuan |
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| Abstract: | Two restriction varietcs of Chinese strain 57A, 57B and two varieties of Japanese strain 24, 46 have been respectively bred by means of oriented cultivation and strict offspring sclection under different climate circumstans in spring, summer and autumn. Then, the hybrid from four elements, which is 57A · 57B × 24 · 46, has bcc'n selected and bred on the basis of hybrid preponderance. According to appraised results for many times, its output and economic value arc 3% to 4% higher than those of CK. Furthermore the variety holds the advantages as follows: healthiness, unrestricted demand to leaf quality, easy egg propagation and top silk quality. So, it is a new fine race for both spring and autumn rearing. |
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| Keywords: | Bombyx mori Variety 57A·57B 24·46 Breeding |
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