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本实驗証明:蝗卵的耐干、耐热性能,常因胚胎发育阶段而異。已吸水的越冬卵,在30℃恆温下可以在2.5％含水量的土壤内正常孵化;未吸水卵在同样温度下,則需要土壤含水量在8％以上才能正常孵化。吸水卵在土壤含水量适宜的情况下,可耐受短期的高温(60℃);而未吸水卵只能耐受55℃以下温度的处理。二者发育的最高温度界限都在41.5℃左右,超越此限,蝗卵孵化率的递減梯度,除随温度上升的幅度而加大外,并与高温的持續时間和土壤含水量的变化有关。
The experiment shows that: locust eggs, heat resistance, often due to different stages of embryonic development. Water-absorbed wintering eggs can normally hatch in a 2.5% water-saturated soil at a constant temperature of 30 ° C. Non-water-absorbing eggs require more than 8% soil moisture to hatch at the same temperature. Water-absorbing eggs can tolerate short-term high temperatures (60 ° C) when the soil moisture content is appropriate, while non-water-absorbing eggs can only tolerate temperatures below 55 ° C. The maximum temperature limit of both development is about 41.5 ℃, beyond which the decreasing gradient of hatching rate of locust eggs, except increasing with the increase of temperature, is consistent with the change of the duration of high temperature and soil water content related.