Over-wintering Butterfly Valley 越冬型蝴蝶谷
over-wintering 越冬 ; 小株露地越冬
Over-wintering stage 小麦越冬期
over wintering crops 越冬作物
The main source of primary infection comes from hypha, akinetes and sclerotiums over-wintering in the bulb, residues of diseased plants and the soil.
病菌以菌丝体在种球内，或以菌丝体、厚垣袍子及菌核随病残体在土壤中越冬，成为翌年的主要初侵染源。
The negative accumulated temperature decreased obviously during the over-wintering period.
冬小麦越冬期负积温明显减少。
NTC-TD heat-sensitive resistance is used to measure the super cooling-point (SCP)and freezing point of over-wintering larvae of Diaphania pyloalis;
本文运用NTC-TD热敏电阻法测定了桑螟越冬幼虫的过冷却点、冰点。
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