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Keywords Cathay poplar veneers;Texture emergence;Wood chromatism;Potassium permanganate; 杨木单板;花纹凸显;木材色差;高锰酸钾;
Cathay poplar veneers 杨木单板
An experiment was conducted to study the effect of potassium permanganate strength on texture emergence of Cathay poplar (Populus cathayana Rehd.) veneers using potassium permanganate as the reagent. 采用高锰酸钾作为凸显主剂,对杨木单板进行天然花纹凸显处理,研究高锰酸钾对杨木单板天然花纹凸显的影响。
Title： Advances in Researches of Cathay Poplar Leaf Rust(Melampsora larici-populina Kleb. 关键词：落叶松-杨栅锈菌；致病性；抗病性；分子标记；综述
Male pupal weight ranked east-liaoning oak> wild apricot > cathay poplar > prince rupprecht larch > dragon spruce > chinese pine >chinese juniper. 取食量和排粪量排序分别为云杉>山杏>辽东栎>油松>桧柏>华北落叶松>青杨和油松>云杉>辽东栎>华北落叶松>山杏>青杨>桧柏。
The manufacturing method of LVL with poplar veneer treated by hydrothermal condition was discussed in this paper. 摘要对杨木单板湿热处理后制造单板层积材进行了初步研究。
The development stage of gypsy moth ranked from low to high as prince rupprecht larch 雌蛹重排序为山杏>辽东栎>华北落叶松>云杉>青杨>油松,雄蛹重排序为辽东栎>山杏>青杨>华北落叶松>云杉>油松>桧柏;

Small-diameter Larch has more extraction contents than adult Larch, so its drying rate is quicker, but small diameter Cathay poplar has the opposite properties. 小径木落叶松的抽提物含量小于成熟材,其干燥速度相对较快,而小径木大青杨的抽提物含量大于成熟材,其水分渗透性相对较差。
The drying characteristics of small-diameter lumbers of Larch (Larix) and Cathay poplar (Populus cathayana Rehd), located in the Northeast of China, were investigated. 首先,测定了小径木的解剖学特性、物理特性和抽提物的含量,并与成熟材进行了比较,根据小径木木材的上述性质探讨了小径木锯材产生干燥缺陷的原因。
Stock cutting of Chinese white poplar were difficulty strike root by common seedlings method. Its survival rate was low. Survival rate might be 76.5% by Chinese white Poplar buds grafting Cathay Poplar. 毛白杨采用常规扦插育苗插穗难生根;成活率低;采用毛白杨芽接青杨成活率可达76.;5%25;采用的芽接扦插、地膜扦插和埋条育苗方法对比试验;结果显示芽接扦插效果最好;可以推广生产。
Especially xifong 6 was higher 30% than ck Cathay Poplar. It was 2.65 times than the location covered film Xinjiang Poplar,99.2cm. It was 1.75 times than the location covered film Cathay Poplar,150cm. 通过西丰杨的引种试验,引进西丰杨高生长均明显大于对照青杨,尤其是西丰杨6号比对照青杨高生长量高出30 3%25,是当地新育地膜新疆杨99 2cm的2 65倍,是当地地膜青杨150cm的1 75倍,树种的优越性表现突出。
The 416 D saturated optimum regressive design was adopted to evaluate the effect of mixing application of N, P, K and Si fertilizers on the dry matter and seedling quality of Cathay poplar on a sandy loam aluvium. 本文采用416D饱和最优回归设计在砂壤质冲积土设置田间试验。
The results showed that after the hydrothermal treatment, the water absorption of poplar veneer was reduced while the thickness swelling ratio and the modulus of elasticity (MOE) of LVL were enhanced. 研究表明：对单板进行调湿热压预处理，降低了单板的吸水性，降低了单板层积材的吸水厚度膨胀率，使其弹性模量增加；
The results showed that after the hydrothermal treatment,the water absorption of poplar veneer was reduced while the thickness swelling ratio and the modulus of elasticity(MOE) of LVL were enhanced. 研究表明:对单板进行调湿热压预处理,降低了单板的吸水性,降低了单板层积材的吸水厚度膨胀率,使其弹性模量增加;
Qinghai Cathay Poplar and its Fine Clone 青海的青杨及优良无性系
Study on Seed Source Test of Cathay Poplar 青杨种源试验研究
The Method of Prevent and Control Cathay poplar 青杨天牛的防治方法
This article describes the anatomical features of leaves of seventeen species of Aigeiros and Cathay Poplars. 本文描述了黑杨派和青杨派的17种杨树叶片的解剖构造,它们分属两种类型:等面叶和异面叶。
Hot Press Dried Rotary cut Poplar veneer 热压烘干旋切白杨木单板
Research on Dye Uptake of Poplar Veneer Dyeing 杨木单板染色染料上染率研究