Cold hardiness and overwintering of the grain aphid Sitobion avenae
Cold hardiness and overwintering of the grain aphid Sitobion avenae
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谷蚜Sitobion avenae的抗寒性和越冬性
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
Jeffrey S. Bale
中科院分区：
文献类型：
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作者：
J. D. Knight;Jeffrey S. Bale
抽象的。1以麦长管蚜Sitobion venae(F.)活动期过冷能力衡量其抗寒性。随着成熟度逐渐降低。2种蚜虫在低温条件下无驯化反应。3饥饿不能提高过冷能力。4在一次暴露中，在一小部分人群中，表面湿度导致接种高于固有过冷点。5野外种群的过冷能力表现出季节性变化，夏季最大，冬末最小。6结论是，以健康的植物组织为食的行为可能会赋予广泛的过冷能力。
ABSTRACT. 1 Cold hardiness as measured by supercooling ability in the active stages of the grain aphid Sitobion avenae (F.) decreased progressively with maturation. 2 Aphids showed no acclimation response when maintained at low temperatures. 3 Starvation did not improve supercooling ability. 4 In a single exposure, surface moisture caused inoculation above the inherent supercooling point in a small proportion of a population. 5 Field populations show a seasonal change in supercooling ability, which is at a maximum in summer and a minimum in late winter. 6 It is concluded that the act of feeding on healthy plant tissue may confer extensive supercooling ability.