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Studies on the Chemical Constituents of the Leaves of Betula platyphylla Suk. 白桦叶化学成分的研究
The microwave-assisted extraction(MAE) of betulin from Betula platyphylla Suk. 利用均匀设计法优化了微波辅助提取白桦树皮中桦木醇的工艺。
Current status of the study on seeds resource and propagation of Betula platyphylla Suk. 白桦种源及繁殖的研究现状
BACKGROUND &AIM: Betulin is an important triterpene. We investigated the antitumor activity of betulin,extracted from the bark of silver birch(Betula platyphylla Suk). 背景与目的白桦酯醇是一种重要的三萜类生物活性分子,本文从白桦树皮中提取获得白桦酯醇纯品,然后研究该生物活性分子抑制食管癌细胞的活性。
Abstract BACKGROUND & AIM: Betulin is an important triterpene.We investigated the antitumor activity of betulin, extracted from the bark of silver birch (Betula platyphylla Suk). 摘要背景与目的: 白桦酯醇是一种重要的三萜类生物活性分子，本文从白桦树皮中提取获得白桦酯醇纯品，然后研究该生物活性分子抑制食管癌细胞的活性。
Betula platyphylla Suk. 白桦
Research of Ectomycorrhiza of Betula Platyphylla Suk 白桦外生菌根的研究
Optimization of ISSR-PCR Reaction System for Betula platyphylla Suk 白桦ISSR-PCR反应体系的优化
STUDIES ON THE SPECIES RELATIONS IN THE MIXEDFORESTS OF PINUS TABULAEFORMIS CARR. AND BETULA PLATYPHYLLA SUK 油松-白桦混交林种间关系研究
SEASONAL CHANGES IN THE CONTENT ON PLATYPHYLLONE AND PLATYPHYLLOSIDE IN THE INNER BARKS OF BETULA PLATYPHYLLA SUK 李淑芹，田立，姜福臣，米茂云，二对羟苯基-5-羟基-3-庚酮及其葡萄糖苷在白桦内皮中含量的季节性变化
Betula platyphylla Suk 白桦
Seed sowing and afforestation techniques of Betula platyphylla Suks 白桦育苗造林技术
Betula Platyphylla Suks 白桦
The fluctuant and conventional drying technologies for22 mm-thick Birch( Betula platyphylla) were tested and compared. 进行了桦木波动干燥工艺和常规干燥工艺的对比试验。
Objective: To establish two-dimensional electrophoresis(2-DE) patterns of flower-bud for Betula platyphylla. 目的:初步建立白桦花芽蛋白质组研究的双向电泳(2-DE)技术,以提高其分辨率及重复性。
The fluctuant and conventional drying technologies for 22 mm-thick Birch (Betula platyphylla) were tested and compared. 进行了桦木波动干燥工艺和常规干燥工艺的对比试验。
Niche relationships between Betula platyphylla and main understory herbages in forest-steppe ecotone of Daxingan-ling Mountains. 大兴安岭森林草原过渡带白桦及主要草本植物生态位关系的研究。
Stem sap flow density characteristics of ailing Betula platyphylla in 2001 was concerned with physiological control of transpiration. 叶感病白桦树干液流具有以上特点，是因为具有较强的蒸腾生理调控力，以适应叶部病害而求得生存。
Thermal dissipation method was applied to study the stem sap flow of Betula platyphylla for two consecutive growing seasons. 摘要应用热扩散法，对白桦树干液流进行连续两个生长旺期测定。
Through the observation,we selected the optimum management density of Larix gmelini and Betula platyphylla mixed forest , and analyzed the research result. 通过观测研究,选出落叶松白桦混交林的最佳经营密度,并对研究结果进行了分析评价。