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2 result(s) for "过冷却点"
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低温驯化对东北林蛙过冷却点及结冰点的影响
低温驯化对东北林蛙过冷却点及结冰点的影响
by 杨 斌 袁一田 陈 晨 肖向红 黄璞祎 柴龙会 in 东北林蛙 , 低温胁迫 , 过冷却点
2017
为评价东北林蛙(Rana dybowskii)的耐寒性及其适应低温能力,并为其养殖、运输和暂养提供参考数据,本研究分别测定了25℃、4℃和0℃驯养条件下东北林蛙的过冷却点和结冰点。结果显示,东北林蛙过冷却点最低可达-2.6℃,最高为-1.4℃; 结冰点最低可达-2.3℃,最高为-1.2℃; 低温驯化可显著降低东北林蛙结冰点。基于本试验结果和相关文献分析表明,经过低温驯化的东北林蛙可通过升高血糖维持在-2℃左右的过冷却状态,其耐寒对策为避免冰冻; 在东北林蛙的人工养殖越冬、暂养、运输过程中,应尽量控制在-1℃以上以防冻死或降低其食用品质。
Journal Article
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白蜡虫不同虫态及不同地理种群越冬雌成虫过冷却点的研究
白蜡虫不同虫态及不同地理种群越冬雌成虫过冷却点的研究
by 杨璞 陈晓鸣 谢正华 刘魏魏 in 地理种群 , 过冷却点
2011
对昆明地区白蜡虫不同虫态的过冷却点进行了测定，结果表明：昆明地区雄虫真蛹期过冷却点最低，中值为一15．81℃，符合正态分布；雌虫越冬时期过冷却点最低，中值为-20．41℃，符合正态分布；对于不同地理种群自蜡虫越冬雌成虫过冷却点的测定表明，长春地区越冬雌成虫在3月份过冷却点显著低于其它地区，过冷却点中值为-23．19℃，不符合正态分布。测定结果表明：白蜡虫在严寒地区抗寒能力增强。
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