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。
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。
Provided that temperatures are adequate, and that both food and light are also available in sufficient quantity and quality, over-wintering tortoises is not particularly difficult.
为它提供合适的温度，食物和光照也要保证充足的数量和质量，这样龟越冬就不特别难了。
The first over-wintering of soybean rust was identified near Dade City, Florida, on February 23.
据2月23日证实，亚洲大豆锈菌在佛罗里达州戴德市已成功越冬。
The contents of blood's ALA, CYS, GLU of the Over - Wintering Larva were increased 94.6 %, 80.2 %, and 19.6 %, respectively.
幼虫血淋巴内氨基酸中的丙氨酸、胱氨酸和谷氨酸含量分别比越冬初期增加了94.6%、80.2%和19.6%。
The contents of blood's ALA, CYS, GLU of the Over - Wintering Larva were increased 94.6 %, 80.2 %, and 19.6 %, respectively.
幼虫血淋巴内氨基酸中的丙氨酸、胱氨酸和谷氨酸含量分别比越冬初期增加了94.6%、80.2%和19.6%。
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