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   light and temperature factors 的翻译结果: 查询用时:0.171秒
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light and temperature factors
相关语句
  光温因子
     Effects of light and temperature factors on yield and its components in maize.
     光温因子对玉米产量及产量构成因素值的影响
短句来源
  相似匹配句对
     Light the Future
     点亮未来
短句来源
     Travelling light
     轻质的塑料自行车
短句来源
     The Transmit of Light and Reaction
     光的传播与相互作用
短句来源
     Light Pollution and Control
     光污染及其防治
短句来源
     T is temperature, ℃.
     T为温度,℃。
短句来源
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The maximum potential productivity (sun-light and temperature factors; Ymp) and the natural rainfall potential productivity (sun-light, temperature and water factors; Yw) were calculated for the main grain crops (millet, potato, corn, sorghum and pea etc) on the Loess HillY Region in the Northwest of Shanxi, by the agriculture ecology way, which was recommended by FAO.The maximum potential productivity (Ymp) was 362-687 kg/mu, and the water potential productivity (Yw) was 47-90% of Ymp,...

The maximum potential productivity (sun-light and temperature factors; Ymp) and the natural rainfall potential productivity (sun-light, temperature and water factors; Yw) were calculated for the main grain crops (millet, potato, corn, sorghum and pea etc) on the Loess HillY Region in the Northwest of Shanxi, by the agriculture ecology way, which was recommended by FAO.The maximum potential productivity (Ymp) was 362-687 kg/mu, and the water potential productivity (Yw) was 47-90% of Ymp, but the local actual productivity was only 7.4-35% of Yw, It shows that the main factors of Ymp restrain were not just water deficency but also ineffictive utilization of water. Therefore, the ecological adaptation on the main crops and some highyield measures were proposed.

本文对晋西北黄土丘陵沟壑区主要农作物的最大生产潜力(光、热)和自然降水生产潜力(光、热、水)进行了估算,通过与实际生产力的比较,提出了主要农作物的增产潜力及其生态适应性措施。

In Shandong province, by the use of sowing in different of stages different region, the difference of light and temperature factor under natural conditions were formed. Systematically analysis effects of coefficient of light and temperature factor on yield and its components in maize were also presented. The results showed that accumulated temperature and sunshine during the growing period was significantly correlated with the yield and its components. The direct...

In Shandong province, by the use of sowing in different of stages different region, the difference of light and temperature factor under natural conditions were formed. Systematically analysis effects of coefficient of light and temperature factor on yield and its components in maize were also presented. The results showed that accumulated temperature and sunshine during the growing period was significantly correlated with the yield and its components. The direct accumulated temperature is the obvious greatly, the indirect effect of sunshine by accumulating temperature is the most remarkable. From flowering to maturity, sunshine affected the grain numbers per ear obviously. Average diurnal difference of temperature was negatively correlated with thousand grain weight and yield.Yield and thousand grain weight is supreme in the west of shandong province and decreased from the west to the east in shandong province, the grain numbers per ear were supreme in the middle of shandong province .Accumulated temperature and sunshine time of high of high yielding maize during the growing period and from flowering to maturity were 2 500℃ or so,1 150℃ or so and 700 hours or so, larger than 300 hours respectively.

在山东省境内采用不同区域分期播种 ,形成自然条件下光温值的差异 ,系统分析光、温因子与玉米产量的关系。结果表明 ,玉米生育期间的积温、日照与产量及产量因素值呈极显著正相关 ,积温的直接效应最大 ,日照通过积温的间接效应最大。开花至成熟阶段的日照时数对穗粒数影响明显 ,日平均温差与积温呈负相关关系并对千粒重和产量产生负效应。产量和千粒重以鲁西最高 ,由鲁西向鲁东依次递减 ,穗粒数以鲁中最高。高产玉米全生育期需积温 2 50 0℃左右 ,日照 70 0 h左右 ,开花至成熟阶段需积温 1 1 50℃左右 ,日照大于 3 0 0 h。

The phenological observation of Alhagi sparsifolia (B. Keller et Shap.) Shap. was carried on for five years at Turpan desert botanical garden. The phenospectrum chart was made. By the principal component analysis (PCA) of light and temperature factors influencing phenology, it was revealed that the environmental factors had the close relation to the principal phenophase of A. sparsifolia, and the principal induced factors were various in different phenology. The principal induced factors...

The phenological observation of Alhagi sparsifolia (B. Keller et Shap.) Shap. was carried on for five years at Turpan desert botanical garden. The phenospectrum chart was made. By the principal component analysis (PCA) of light and temperature factors influencing phenology, it was revealed that the environmental factors had the close relation to the principal phenophase of A. sparsifolia, and the principal induced factors were various in different phenology. The principal induced factors of budding period were the average highest temperature of ten days,the average lowest temperature of ten days and the accumulated hours of sun lighting; those of flowering period were ≥5℃ accumulated temperature,the average hours of sun lighting and the average temperature of ten days in bloom; those of fruit period were the average temperature of ten days at the beginning, accumulated hours of sun lighting of fruit period and the average temperature of ten days during fruit maturity.

对吐鲁番沙漠植物园中自然分布的疏叶骆驼刺〔Alhagisparsifolia (B .KelleretShap .)Shap .〕的物候进行了 5a连续的观测 ,编绘了物候图谱。运用主成分分析方法 ,对影响疏叶骆驼刺物候的温度和光照因子进行了分析 ,揭示出与其主要物候期关系最为密切的气象因子 ,表明不同的物候期 ,诱导物候表现的主导因子不同 :诱导疏叶骆驼刺萌动期的主要气象因子为旬均最高温、旬均最低温和累计日照时数 ;诱导开花期的主要气象因子为≥ 5℃积温、花期平均日照长度和盛期旬均温 ;诱导果熟期最主要的环境因子有始熟旬均温、累积日照时数和全熟旬均温。

 
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