In this study investigations were conducted with a clear cut intention of producing a best suited strain which suits exactly to the climatic, rearing and maximum productivity conditions of South Tamilnadu, India silkworm rearing areas. Using the parental stock breeds of CSR2 pure, CSR2 × CSR4, Tamilnadu local pure and CSR2 × TN, eight new strains were crossed and its quantitative and qualitative parameters of egg, larva, pupa, cocoon and silk were studied in this analysis. Concerning the qualitative and quantitative parameters of egg, the breeds of (CSR2 × TNL) ♀ x (CSR2 × TNL) ♂ and TNL ♀ x (CSR2 × TNL) ♂ were identified best for rearing similar to that of available commercial breed. Silk parameters such as colour, texture, preciseness, single filament length, silk percentage, and percentage of reelability were also observed. The maximum percentage of silk was recorded in (CSR2 × TNL) ♀ x (CSR 2 × TNL) ♂ and (CSR2 × TNL) ♂ x TNL ♀. Percentage of reelability was recorded and the highest was recorded in TNL ♀ x (CSR 2 × TNL) ♂. Maximum silk filament length (m) was measured in (CSR 2 × TNL) ♀ x (CSR 2 × TNL) ♂, and TNL ♀ x (CSR 2 × TNL) ♂ strains. The overall study clearly shows that, if proper selection of breeds were found and breed, new productive strains can be produced with an immense success and this also help the establishment of good quality silk in world silk market and will surely increase silk yield and productivity.

中文翻译：

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一些新生产的家蚕（Linnaeus）多株菌株在商业上充满活力的定性和定量性状的表现

在这项研究中，调查的目的很明确，即生产最适合印度泰米尔纳德邦南泰米尔纳德蚕饲养区的气候、饲养和最大生产力条件的菌株。使用CSR2纯种、CSR2×CSR4、泰米尔纳德本地纯种和CSR2×TN亲本品种，对8个新品系进行杂交，并在本次分析中研究了其卵、幼虫、蛹、茧和丝的定量和定性参数。关于鸡蛋的定性和定量参数，(CSR2 × TNL) ♀ x (CSR2 × TNL) ♂ 和 TNL ♀ x (CSR2 × TNL) ♂ 的品种被认为最适合饲养，类似于现有的商业品种。还观察了丝绸参数，例如颜色、质地、精确度、单丝长度、丝绸百分比和卷曲率百分比。蚕丝的最大百分比记录在(CSR2 × TNL) ♀ x (CSR 2 × TNL) ♂ 和(CSR2 × TNL) ♂ x TNL ♀。记录了卷曲率的百分比，最高记录在 TNL ♀ x (CSR 2 × TNL) ♂。在 (CSR 2 × TNL) ♀ x (CSR 2 × TNL) ♂ 和 TNL ♀ x (CSR 2 × TNL) ♂ 菌株中测量最大丝长 (m)。总体研究清楚地表明，如果发现并培育出适当的品种选择，新的生产品系可以大获成功，这也有助于在世界蚕丝市场上建立优质蚕丝，必将提高蚕丝产量和生产力。在 (CSR 2 × TNL) ♀ x (CSR 2 × TNL) ♂ 和 TNL ♀ x (CSR 2 × TNL) ♂ 菌株中测量最大丝长 (m)。总体研究清楚地表明，如果发现并培育出适当的品种选择，新的生产品系可以大获成功，这也有助于在世界蚕丝市场上建立优质蚕丝，必将提高蚕丝产量和生产力。在 (CSR 2 × TNL) ♀ x (CSR 2 × TNL) ♂ 和 TNL ♀ x (CSR 2 × TNL) ♂ 菌株中测量最大丝长 (m)。总体研究清楚地表明，如果发现并培育出适当的品种选择，新的生产品系可以大获成功，这也有助于在世界蚕丝市场上建立优质蚕丝，必将提高蚕丝产量和生产力。