您要查找的是不是:
- 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 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。
- 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。
- 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。
- Rapid Regeneration of Cathay Poplar by Tissue Culture 青杨组织培养快速繁殖
- Study on the Method of Prevent and Control Cathay poplar 青杨天牛防治技术研究
- Achievements on Species Improvement of Cathay Poplar Group and Breeding Base Construction 青杨派树种改良及综合繁育基地建设成果
- Analysis on Forestation Effect between Nursery Stock and Stock Cutting for Cathay Poplar 青杨高杆、植苗造林效果分析
- Advances in Researches of Cathay Poplar Leaf Rust(Melampsora larici populina Kleb.) 青杨叶锈病(Melampsora larici-populina Kleb.;)研究进展
- Mixing application of N, P, K and Si Affecting Dry Matter And Seedling Quality Of One-Year-Old Cathay Poplar 氮、磷、钾、硅肥配施对大青杨一年生苗干物质及苗木等级影响的研究
- 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;