摘要
对家蚕饲养中发生色茧现象的研究结果表明,产生色茧的原因主要是桑园土壤和桑叶的金属离子(特别是重金属离子)含量严重超标所致。金属离子通过蚕卵遗传;同时也与不同年份的生态条件(主要是环境污染程度)密切相关。
During the recent years emergence of tinged cocoons of the silkworm hsa been observed in the Ukraine in a considerable amount, sometimes of 7～10 per cent. Experiments manifested that a considerable excess of the standard in forage concerning to metal salts, mainly heavy metal ones, took place in the leaves and the top soft layer of 0 to 5cm, and this has become the main cause of the tinged cocoon emergence. Furthermore, inheritance of the tinged presence of feature in the progeny is likely to be caused by the transfer of heavy metal salts through the eggs and depends largely on ecological conditions, an environmental contamination when rearing.
出处
《西北农业学报》
CAS
CSCD
1992年第2期39-42,共4页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
家蚕
色茧
重金属离子
生态条件
Silkworm
Tinged cocoon
Heavy metal salts
Environmental conditions
Environmental contamination
