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Issue:
can zhong fu shi leng cang wen du tan tao
Author(s):
FENG Jiaxin
,
LI Dazuo
Pages:
36
-
37
Year:
1980
Issue:
4
Journal:
Bulletin of Sericulture
Keyword:
冷藏期限
;
复式
;
蚕卵
;
重要措施
;
胚子发育
;
两种方法
;
中间温度
;
单式
;
蚕种保护
;
实用孵化率
;
Abstract:
<正> 越冬后蚕种保护的重要措施是冷藏,在生产上有单式冷藏和复式冷藏两种方法。单式冷藏,当蚕卵发育到丙
1
~丙
2
胚子间,用2.5℃保护,直至出库催青,施行简便,一般冷藏期限较短,适宜春期用种。本省单式冷藏入库时期约在2月上旬。复式冷藏在蚕印发育到甲胚子时,用0℃进行第一次冷
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