有效积温法则 law of effective temperature ; law of effective accumulative temperature
有效积温预测 [植保] effective temperature summation forecast
发育有效积温 effectively growing degree days
以有效积温 Growing degree days ; GDD
明显高于以有效积温 GDD ; Growing degree days
性成熟有效积温 zero point temperature of biology
有效积算温度 total effective temperature ; effective cumulative temperature ; effect temperature summation
有效积算温度律 law of total effective temperature
52℃ and effective accumulated temperature of 358. 53 degree-day.
发育起点温度为16.52℃,有效积温为358.53日度。
参考来源 - 棉铃虫迁飞与滞育的研究——棉铃虫滞育的解除与羽化形式The results showed that the developmental threshold and the effective accumulative temperature for whole generation were estimated to be 8.88℃ and 511.86 degree-days, respectively, and 8-9 generations could occur per year in Hainan Island.
结果表明:螺旋粉虱世代的发育起点温度和有效积温分别为8.88℃和511.86日·度,在海南一年可发生8～9代。
参考来源 - 螺旋粉虱的生物学特性The developmental threshold temperatures ofE. nicholsi is 8.59℃,and their effective thermal summation is 83.33 day-degree.
全世代的发育起点温度和有效积温分别为8.59℃和83.33日·度。
参考来源 - 尼氏真绥螨种群生物学及其与害螨寄主植物相互关系的研究First one of them was enhance resources occupancy by early planting and harvesting as possible as late, which ensured more than 90% in effective accumulate temperature , 85% in nature rainfall and 70% in tall radiation of whole year.
早播晚收增加全年资源占有,保证有效积温季节利用效率达全年90%以上,自然降水达到85%以上,光照达到70%以上;有效地分配周年双季的资源比例。
参考来源 - 热量限制两熟区双季青贮玉米模式及其技术体系研究The development threshold temperature and effective accumulated temperature for growth temperature of Glenea cantor were calculated to be 10.69C and 1432.96 day-degree. It could be inferred that there would be at least 5 generations each year in Nanning.
该天牛世代发育起点温度和有效积温分别为 10．69OC和 1432．96日度，据此推测出该天牛在南宁一年至少发生5代。
参考来源 - 南宁市园林天牛群落结构及眉斑楔天牛生物生态学特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文研究了该螨的主要生物学特性和有效积温。
The principal biological characteristics and the effective accumulated temperature were studied.
发育起点温度及有效积温因不同龄期均有差异。
Development thresholds and accumulated temperatures vary owing to different instars.
根据有效积温的值可以完成生长期的判断，产期的预测等。
The growth period can be concluded according the calculation value and production period can be forecasted.
有效积温，是作物在某个生育期或全部生育期内有效温度的总和，即作物在某一段时间内日平均气温与生物学零度之差的总和。有效积温是反映生物生长发育对热量的需求或衡量地区热量资源的指标，常用于农业气象预报。由于有效积温剔除了生物学下限温度以下和上限温度以上的温度，因此它基本上反映了作物的生育速率与温度的线性关系。 由于有效积温扣除了低于生物学下限温度的那部分无效积温，因而较为稳定，能更确切地反映作物对热量的要求；而活动积温则包含了低于生物学下限温度的那部分无效积温，且温度愈低，无效积温所占的比例就越大。所以在制订作物物候期预报时，应用有效积温较好。但应用于某地区热量鉴定，合理安排作物布局和农业气候区划时，则以用活动积温较为方便。
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