摘要
测定家蚕幼虫抗氟中毒的抵抗能力,4龄>3龄>2龄。强抗原种杂变组成的杂种一代,抗性介于两亲之间,弱抗原种杂交组成的杂种一代,其抗性表现出超亲的遗传现象,不同浓度的氟素对品种间的生长发育影响有着显著的差异,说明了品种间的抗氟能力存在着差别;抗氟性与DNV抗性有着显著的相关性;与茧质性状表现为不显著的正相关,抗氟性与蚕血中Ca^(2+)、Mg^(2+)含量无明显的相关关系。
Investigation on the fluoride-resistance of silkworm,Bombyx mori,and estimation of the corelatlonship between the fluoride-resistance and the other economic characters had been conducted.These can provide the scientific basis for the breeding of anti-fluoride races.The resistance to the fluoride-poisoning is strengthened with the growth of silkworm larvae,that is,4th instar>3rd instar>2nd instar.The resistant ability of F1 hybrids of the strong fluoride-resistance crossing groups was in between that of the parents'.For the Fl of the weak fluoride-resistance crossing groups,their resistance expressed was higher than their parents'.The resistance of different varieties was significantly different due to the various concentrations of fluoride.The andi-fluoride and the anti-DNV characters wen in significant positive corelation.But there were no such corelation to the cocoon quality,and the content of Ca and Mg ions in the larvae blood.
出处
《华南农业大学学报》
CAS
CSCD
1992年第3期117-120,共4页
Journal of South China Agricultural University
基金
国家自然科学基金
关键词
家蚕
抗氟性
数量性状
相关性
Mulberry silkworm (Bombyx mori)
resistance to the fluoride-poisoning
quantitative characters
corelation
