Study on the effect of different temperatures on the main productive characters of the silkworm larvae, Bombyx mori under Egyptian agro-climatic conditions

에집트 기후조건 특히 온도의 변화가 원원잠품종의 주요 유전형질에 미치는 영향

  • Greiss, H. (Agricultural company Agro Mier) ;
  • Sohn, H.R. (Department of Natural Fiber Science, College of Agriculture, Kyungpook National University) ;
  • Lim, J.S. (Department of Natural Fiber Science, College of Agriculture, Kyungpook National University)
  • ;
  • 손해룡 (경북대학교 농과대학 천연섬유학과) ;
  • 임종성 (경북대학교 농과대학 천연섬유학과)
  • Published : 2000.12.31

Abstract

Eleven inbred lines of silkworm, Bombyx mori L. were exposed to two main different temperature (23C and 25C) during the larval period in order to elucidate the effect of the temperature differences on their main characters under the, prevailing in Egyptial agro-climactic conditions. The results show that the temperature differences did not affect significantly the pupation ratio and cocoon shell ratio. However, they affected their larval duration to become shorter with the high temperature treatment ($27^{\circ}C$) and their cocoon shell weight and cocoon yield per box of silkworm eggs to be higher in the lower temperature($23^{\circ}C$). It was recommended that some inbred lines should be bred at the 23C throughout the whole larval period, particularly in being reared with high nutritional leaves in order to maximize the hybridization of cocoon yields.

수입된 11개 원원 종을 열대기후인 이집트에서 온도가 다른 $23^{\circ}C$$27^{\circ}C$에서 사육하여 주요 유전 형질에 미치는 영향을 연구하였다. 저온 및 고온 공히 교잡 종의 화용 비율과 견층 비율에는 영향을 주지 않았으나, 고온은 유충기간을 단축시켰고, 저온은 견층 중과 상자 당수견 량을 무겁고 높게 하였다 따라서 원원 종의 육성과정에서는 유충 전령을 저온으로 사육하는 것이 잡종강세를 극대화할 수 있음을 알 수 있었다.

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