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light-ecological
相关语句
  光生态
     Application study of light-ecological film to seedling raising in paddy
     光生态膜在水稻育苗上应用试验研究
短句来源
     Light-ecological field of Larix leoptolois canopy.
     日本落叶松林冠层光生态场研究
短句来源
     The experiment shows that the application of light-ecological film to raise seedlings in paddy can improve seedlings quality, yield and economic benefit.
     对其进行光能利用率试验研究表明:光生态膜在水稻育苗上应用可提高水稻秧苗素质、产量和经济效益,是水稻育苗的一种新型棚膜。
短句来源
  相似匹配句对
     Light Night
     明亮夜
短句来源
     Light the Future
     点亮未来
短句来源
     Light Z-matrix
     轻Z—矩阵
短句来源
     Laser light-liver
     激光光杠杆的研制
短句来源
     On Ecological Security
     论生态安全
短句来源
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Research results revealed that the temperature-light ecological system for wheat cultivars in china consisted of 2 zones in accordance with the seeding time,i.e. the spring-au-tunm seeding zone and the autumn-winter seeding zone. Based on the reactions of varieties to temperaure and light, the 2 temperature -light ecological zones were classified into four main regions and nine subregions. Four characteristics in the distribution of the temperature -light ecological zones in China were also discussed.

研究结果表明,我国小麦品种温光生态区划第一层次是确定了我国的两条播性界限,即春播秋播线与秋播秋冬播线,并得出了我国的播性分区.第二层次是根据品种温光反应特性与播性分区相拟合,将我国品种温光生态区划分为4个主区,9个亚区.并揭示了我国品种温光生态特性分布的四个特征.

Photoperiodical reactions of Heihe -5,Heinong -33,Jindou -1 and Xiangchundou-14 were studied by photoperiodical induction with & and 16 hour light duration per day independently in Harbin and Changsha in 1990~1991.The results showed that(1)The varietal order of reaction level to short day was Jindou -1>Xiangchundou -14>Heihe -5>Heinong-33>in Harbin, and Hiehe -5>Xiangchundou -14, Heinong -33>Jindou-1 in Changsha.(2)In Harbin,with & hr.photoperiodical induction,Ve ̄R8 stage of Heihe -5 and Heinong -33 were shorter...

Photoperiodical reactions of Heihe -5,Heinong -33,Jindou -1 and Xiangchundou-14 were studied by photoperiodical induction with & and 16 hour light duration per day independently in Harbin and Changsha in 1990~1991.The results showed that(1)The varietal order of reaction level to short day was Jindou -1>Xiangchundou -14>Heihe -5>Heinong-33>in Harbin, and Hiehe -5>Xiangchundou -14, Heinong -33>Jindou-1 in Changsha.(2)In Harbin,with & hr.photoperiodical induction,Ve ̄R8 stage of Heihe -5 and Heinong -33 were shorter compared with that of natural daily length and were mainly shortened in Ve ̄R1 and R1 ̄R3 Growing days of Jindou -1 and Xiangchundou- 14 were solely shortened in Ve~R1.(3)In Harbin,with 8 hr.photoperiodical induction,Heihe -5 and Heinong -33 had shortening aftereffect in R1 ̄R3 and prolonging aftereffect in R4 ̄R7, R5 ̄R8 and R9~R7,Jindou -1 and Xiangchundou -14 had not.(4)Short day characteristics and aftereffect of photoperiod of soybean related closely to the latitude of varietical derivation,the natural daily length in growing period(temperature)d light ecological type of variety.

作者于1990~1991年,在哈尔滨和长沙两地采用8小时和16小时光周期诱导,研究黑河5、黑衣33、晋豆1和湘春14四个品种光周期反应。结果表明:1、各品种短光性强弱顺序,在哈尔滨是晋豆1>湘春14>黑河5>黑衣33;长沙则为黑河5>湘春14、黑农33>晋豆1。2、在哈尔滨经8小时光周期诱导,V_e~R_8期黑河5和黑衣33日数比自然光照缩短,主要是V_e~R_1和R_1~R_3期日数缩短所致,晋豆1和湘春14仅是由V_e~R1日数缩短的原因引起。3、在哈尔滨黑河5和黑农33经8小时光周期诱导,R_1~R_3期有缩短的后效应,R_4~R_7、R_5~R_8、R_6~R_6期有延长的后效应。晋豆1和湘春14未表现这种后效应。4、大豆的短光照性和光周期的后效应和品种原产纬度、生长季节光照(温度)、品种光照生态类型密切相关。

The light ecological field of Larix leoptolois canopy is studied by means of neighboring disturbed models and shading effect method. Based on shading effect among various growth classes of Larix leoptolois, the shading coefficient table is drawn up,and the shading models of different growth classes are put forward.The results show that the projection of single Larix leoptolo is canopy is an ellipse with east west as its long axis, and south north as its short axis between 7 am to 5 pm. The individual...

The light ecological field of Larix leoptolois canopy is studied by means of neighboring disturbed models and shading effect method. Based on shading effect among various growth classes of Larix leoptolois, the shading coefficient table is drawn up,and the shading models of different growth classes are put forward.The results show that the projection of single Larix leoptolo is canopy is an ellipse with east west as its long axis, and south north as its short axis between 7 am to 5 pm. The individual plant shading intensity is the sum of the shading effects of other trees within the ellipse in the forest. The higher the shading field intensity, the stronger the light ecological effect, and the worse the tree growth.

从生态场理论出发 ,运用邻体干扰模型和遮光影响的方法 ,研究了日本落叶松林冠层光生态场 .根据不同生长级林木之间遮光影响 ,编制了林木遮光系数表 .提出了不同生长级林木间遮光模型 .结果表明 ,7∶0 0~ 1 7∶0 0日本落叶松单冠连续投影是 1个以东西为长轴、南北为短轴的近椭圆形 ;林分内每株树木受到的遮光强度等于近椭圆范围内其它林木对其的遮光和 ;林木受到的遮光强度愈大 ,其光生态效应愈强 ,生长发育愈差 .

 
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