The haemolymph cation levels of bivoltine races were about 30% higher than the multivoltine PM.
家蚕二化性品种的血淋巴阳离子水平比多化性品种PM高出30%。
2
Incomplete diallel crosses were made ir an experiment with bivoltine RACES of silkworm (Bombyxmori) to study the genetic effects of six quantitative characters.