家蚕品种最适环境片区的划分  

MEGA-ENVIRONMENT ANALYSIS FOR SILKWORM VARIETIES

作　　者：张泽[1] 鲁成[1] 向仲怀[1] 

机构地区：[1]西南农业大学蚕桑学农业部部级重点实验室

出　　处：《蚕业科学》1998年第3期175-179,共5页ACTA SERICOLOGICA SINICA

摘　　要：对家蚕品种最适环境片区划分进行了研究，初步得到如下结果：参试的8个地区可以划分为两个环境片区。第一个环境片区包括四川、重庆和浙江；第二个环境片区包括陕西、山东、安徽、湖北和镇江；第一个环境片区的最适基因型是品种B；第二个环境片区的最适基因型是品种C。如果在各环境片区推广相应最适基因型比在所有地区只推广品种C，则全区平均万蚕收茧量可提高2．1％。The objective of this study is to apply AMMI model to mega-environment analysisfor silkworm genotypes. Based on the results,the eight areas tested were classified into 2mega-environments. The first mega-environment included Sichuan (SC),Chongqing (CQ)and Zhejiang (CJ), and the second mega-environment included Shaanxi (SX), Shandong(SD),Anhui (AH),Hubei (HB) and Zhenjiang(ZJ). The variety B wins in the first megaenvironment,the variety C wins in the second mega-environment. By rcaing the varietyof the most suitable genotype in the corresponding mega-environment,the cocoon yieldof 10000 larvae would be increased by 2. 1 percent.

关 键 词：家蚕 品种 基因型 环境 AMMI模型 环境片区分析 

分 类 号：S882.1[农业科学—特种经济动物饲养]