杨派
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黑杨派无性系和湿地松苗施用~(15)N和~(32)P标记肥料的试验
Results of the application of labelled ( 15 ) ~ n and 32P fertilizers to younglings of Slash Pine and four clones of hybrid poplars
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涝渍条件下黑杨派无性系基茎韧皮部的PAL活力和有机质含量
PAL activity and organic components in basal stem phloem of Poplar Clones under waterlogging and flooding condition
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利用Logistic方程对9个黑杨派杨树无性系的11年生林木的树高、胸径和材积的生长规律进行拟合,结果表明:利用Logistic方程拟合效果显著,相关系数皆在0.90以上。
Logistic equation was applied to fit growth rules of height , DBH and volume of 9 poplar clones at the age of 11 , the results showed that the fitting effect is remarkable and correlation coefficient all above 0.90 .
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以5个黑杨派(P.deltoides)杨树无性系为材料,利用Logistic方程对各个无性系的1a生扦插苗木的苗高、地径的年生长节律进行拟合。
Logistic equation is applied to fit annual growth rhythm in seedling height and ground diameter for one & year old cutting seedling from 5 clones of P. deltoides .
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黑杨派3个无性系苗木自然失水试验
A test on the loss of moisture of 3 poplar clones
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黑杨派南方型无性系引种及选择的研究
Introduction and Selection of Southern Type Clone of Black Poplars
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黑杨派南方型杨树密度效应规律的研究
A study on the density effect law of the southern type poplars
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11个黑杨派无性系抗寒性试验报告
Experiment reports of anli-cold of 11 clone of populus nigra
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黑杨派杨树组培再生系统的研究
Research on tissue-culture reproductive systems of black poplar group
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黑杨派杨树杂交育种研究初报
Cross breeding of Black Poplar Study on growth performance of new cottonwood clones at nursery stage
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黑杨派南方型无性系不同地类栽培初报
Primary Report on Cultivating Southern Type of Series Black Poplar Clones in Different Kind of Soil
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黑杨派南方型无性系在滩地上造林,其胸径、树高、材积生长均随滩地高程的降低、淹水时间的增加而降低。
The diameter breast height , height , volume growth of southern clone series of poplar growth on the beach were reduced with the elevation and increased submerged time .
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本文根据多点密度试验林的长期观测资料,对黑杨派南方型杨树密度效应规律进行了系统研究。
According to the investigated data from various man-made density experimental forests in China , the authors have systematically studied the density effect of man-made southern type poplar forests .
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介绍了洞庭湖区引种的黑杨派南方型杨木的特性,根据原料特性设计了胶合板制造工艺并对工艺参数进行优选。
Based on the characteristic of Populus Trichocarpa CV . " Southern " planted in Dengting Hu area , a plywood manufacture technology was worked out , optimized and tested .
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我们根据意大利为代表的世界杨树育种先进国家的经验,结合我国杨树育种现状,介绍了世界黑杨派杨树基因资源;
Based on the advanced experience of some developed countries , Italy in particular , and in light of the actual condition in our country , This paper introduced some poplar gene resources ;
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杨属派间核型比较研究
A comparative study on the karyotypes among sections of Populus
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杨歧派的话头,有的是《沧浪诗话》的理论准备,有的是对《沧浪诗话》论断的超越。
Some of Yangqi Group 's idioms are the theory preparing for Canglang Poetry Talks and some of them are the surpassing the Canglang Poetry Talks inference .
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在汛期淹水和地下水位较高的江滩、湖滩地,35杨的材积生长量高于黑杨派其他无性系;
In the beaches inundated or with a higher groundwater evel , the volume increment of CL '35 ' excels that of the other clones .