International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Correlation Coefficient Studies on Certain Quantitative Traits in the Silkworm, Bombyx mori L.

  • Begum, A.Naseema (Central Sericultural Research and Traning Institute) ;
  • Yamamoto, T. (Silkworm Breeding Laboratory, National Institute of Agriculture and Sericulture, Matsumoto Branch)
  • Published : 2002.09.01
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Abstract

To understand the relationship among different quantitative traits, correlation studies were performed by utilizing eighty-eight inbred strains of silkworm, Bombyx mori L. on twelve economic characters. Analysis resulted in correlation of 5th instar period with total larval period (r ＝ 0.7882), cocoon weight with shell weight (r ＝ 0.8326), shell weight with shell ratio (r ＝ 0.5067), shell ratio with raw silk ％ (r ＝ 0.7570), raw silk ％ with filament length (r ＝ 0.3490), filament size (denier) with reelability (r ＝ 0.3193) and boil-off loss % (r ＝ 0.2792). Negative correlation was observed among filament length with filament size (r ＝ 0.7582) and reelability with boil-off loss % (r ＝ -0.3236). Correlation of different quantitative characters for quality silk production is discussed.

Keywords

References

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