the negative accumulated temperature decreased obviously during the over-wintering period.

冬小麦越冬期负积温明显减少。

following are results obtained:after the first leaf differentiated, total leaf area increase exponential adapting to accumulated temperature (at).

冬小麦苗期叶片分生以后，随着积温的增加，叶面积呈指数增加。

the findings shows that nutritional growth of rice is mainly affected by effective accumulated temperatures, an accumulated temperature of 15~25℃ and sunshine time .

结果表明，水稻营养生长主要受有效积温、15~25℃积温和日照时数的影响。

the developmental zero and effective accumulated temperature for individual development of cornegenapsylla sinica were measured by the experiment under constant temperature in the climatic chamber.

在人工气候室不同温度下测定龙眼角颊木虱的各个虫态及全世代的发育起点温度和有效积温。

the accumulated temperature of anshan was analyzed by linear trend analysis, moving mean method, mann-kendall method and wavelet analysis, and so on.

采用鞍山市积温资料，利用线性倾向估计、滑动平均、突变m-k检验、小波分析等方法对鞍山市积温变化进行初步分析。

the number of days from sowing stage to heading stage could be determined by the sunlight hours and accumulated temperature during growing period.

结果表明，两品种感光性较强，播种-抽穗期日数可由播种期的可照时数和积温拟合。

apart from individual parts of the high-elevation mountain accumulated temperature below 4000℃, others were more than 4000℃to meet the double-crop rice production.

高海拔山区除个别地方积温低于4000℃，其它均在4000℃以上，满足两熟种植。

the quantitative formula of accumulated temperature effect is given and the load forecast combining wavelet transform and neural network is proposed with the accumulated temperature effect.

给出了积温效应的量化公式，提出了考虑积温效应的小波变换与神经网络负荷组合预测方法。

timing and extent of chilling in may were considered to improve the calculating method of cold accumulated temperature and establish cold accumulated equivalent temperature.

并根据低温对水稻影响的原理，综合考虑低温发生的不同时段和低温程度对冷积温的意义，改进了冷积温计算方法，创建了当量冷积温。

the developmental zero and effective accumulated temperature of different developmental stage and one generation of d.

回归 法计算了各虫态及全世代的发育起点温度和有效积温。

the biological zero temperature and effective accumulated temperature in sea urchin strongylocentrous nudus were determined by constant temperature experimentation in a laboratory.

通过室内试验和数理统计的方法，研究了光棘球海胆受精卵发育的生物学零度及有效积温。

in the present paper the development zero and effective accumulated temperature of habrobracon hebetor (say) were studied.

在实验室条件下，对麦蛾茧蜂各虫态的发育起点温度与有效积温进行研究。

here we used reverse accumulated temperature methods to estimate postmortem interval and made accordant result with their true time.

本文对蝇蛆和蛹应用倒计积温的方法进行死亡时间推断，获得与实际 死亡时间一致的结果。

using the main varieties in the production as samples, the relationship between the active accumulated temperature and chalkiness of rice was analyzed.

以生产上大面积推广应用的水稻主栽品种为样本，分析了东北全区域活动积温与水稻垩白率、垩白面积、垩白度的关系。

this paper dealt with the developmental temperature and effective accumulated temperature of different stage and whole generation of longan psyllid.

报道了龙眼角颊木虱的各个虫态及全世代的发育起点温度和有效积温，并与实际发生情况作了初步验证。

studies on developmental duration at different temperatures, developmental threshold temperature and effective accumulated temperature were also carried out.

同时还研究了不同温度下椰心叶甲幼虫的发育历期、发育起点温度和有效积温。

the principal biological characteristics and the effective accumulated temperature were studied.

本文研究了该螨的主要生物学特性和有效积温。

using the known experiential data of effective accumulated temperature and weather datum, the goal values of growth and production periods can be obtained.

利用已有的有效积温的经验数据，结合气象数据资料，就可以推断番茄的生长期、产期等一系列有用的目标值。

the corn and the soybean output have well relationship to the accumulated temperature, the increasing of the accumulated temperature make the output increase.

玉米和大豆产量与积温关系较大，积温增加使产量增加；

based on the study above, another concept of equivalent accumulated temperature is suggested that equals the product of the accumulated t.

提出了当量积温为环境因子有效性系数与活动积温乘积的概念。

further analysis showed the change frost-free duration, accumulated temperature of 0℃, 10℃, 15℃ and 20℃.

进一步分析了影响农业生产的布局和结构的无霜期、0℃、10℃、15℃、20℃积温的变化规律等。

the limited factors of the north-distribution are colder absolute minumum temperature in winter in inland and not enough active accumulated temperature in seashore.

分布北界的限制因子，在内陆为冬季绝对低温过低，在海滨为夏季活动积温不足。