Journal of Sericultural and Entomological Science (한국잠사곤충학회지)
- Volume 9
- /
- Pages.43-47
- /
- 1969
- /
- 2234-8174(pISSN)
Studies on the Bluish Egg treated by X-Rays in Economical Characters of Silkworm Bombyx Mori. L.
최청란에 $Co^60$ 조사가 누에의 실용형질에 미치는 영향
Abstract
This experiment was carried out to investigate the effect of gamma ray on the eggs of later stage in late fall rearing season. The results are summarized as follows: 1. The duration of larval stage was simmilar to that of control in any dose. The silkworm growth was uniform in does of 4,000 gamma ray, but in does of 8,000r 16000r was irregular. There were not malformed silkworms but many small silkworm. 2. Mortality of silkworms was very high 8,000r and over; virus diseases of 87.6 per cent, flacherie of 5.9 per cent and complication of 6.5 per cent. 3. The more the dose of gamma ray became, the lighter the weight full grown silkworm and matured silkworm became. 4. The uniformness of cocoons was registered in dose of 2,000r and the cocoons were irregular or small in dose of 16,000r
잠종의 최청란에 2000r 4000r 8000r 16000r을 조사하여 만추잠기실험에서 다음과 같은 결과를 얻었다. 1. 잠아의 전령경과는 표준고와 별차없고 잠아발육은
Keywords