摘要
将弯齿琵甲(BlapsfemoralisFischer Waldheim)卵分别置于4种温度(恒温30℃,25℃,20℃,室温20～27.5℃)与5种RH水平(0.00%,5.83%,11.66%,17.49%,23.32%)交叉的20种处理组合中,并测定其孵化率.结果表明,在变温20～27.5℃,RH为16.80%(平均)的条件下,卵孵化率最高,为68.3%;在恒温25℃,RH为11.04%(平均)的条件下,卵孵化率较高,为36.7%;RH在5.42%～22.61%间为适湿区,随温度的上升,对最适RH值的要求也上升;变温与恒温对卵的孵化有差异,在适宜温度范围内的变温可明显提高孵化率.5种恒温(32℃,30℃,28℃,25℃,20℃)处理表明,卵在20～32℃间的发育速率与温度均呈直线关系,卵的发育起点温度为(11.60±0.60)℃,有效积温为(146.97±12.31)日度.
The hatching rate of eggs of Blaps femoralis FischerWaldheim was studied at different combinations of constant and variable temperature and relative humidity(RH) ranging from 20*!℃ to 30*!℃and 0% to 23.32%RH, respectively. The results indicated that the hatching rate of eggs was optimal at variable temperature of 20*!℃ to 27.5*!℃ and with RH 16.80%. Compared with the constant temperature of 20*!℃,25*!℃ and 30*!℃, the variable temperature (from 20*!℃ to 27.5*!℃) was more favorable for hatching. And the constant temperature (25*!℃) was the most suitable. The initiative threshold temperature and the effective accumulated temperature of Blaps femoralis' eggs were (11.60±0.603)℃ and (146.97±12.31)day degree, respectively. The relation between the development rates and temperatures of eggs from 20*!℃ to 32*!℃ was linear.
出处
《宁夏大学学报（自然科学版）》
CAS
2002年第2期184-187,共4页
Journal of Ningxia University(Natural Science Edition)
基金
宁夏青年基金资助项目
关键词
温度
土壤湿度
卵发育
弯齿琵甲
孵化率
发育起点温度
有效积温
拟步甲科
发育速率
Blaps femoralis
temperature and relative humidity of soil
hatching rate
the initiative development temperature
effective accumulation temperature
