您要查找的是不是:
- Septoria betulaen. 桦壳针孢
- Betula pendula × B. pendula var. cardica Sok. 欧洲白桦
- The regeneration system used by stems of one-year-old pyrus betulae folia Bge. 本试验以一年生杜梨茎段为材料,建立其离体再生体系。
- 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。
- Diffuseporous wood is seen for example in yellow birch (Betula lutea). 加拿大桦(黄桦)的木材即为散孔材。
- Carbon storage of and Betula albo-sinensis were higher than other three types. 锐齿栎、油松主要分布于中低海拔地带;
- Screening tests on several fungicides for controlling Septoria gentianae Thume on Gentiana spp. 防治龙胆草斑枯病药剂筛选试验。
- The soybean leaves were infected by Septoria glycines and presented morbid state after 7 or 15 days in June in the east of Heilongjiang provice. 大豆褐纹病在黑龙江省东部地区于6月中旬始见病斑,始发病期与当时气象因素有关。
- Toadstools were collected from a range of pure stands of Betula and Pinus both in Britain and the U.S.A. 从英国和美国一系列桦木和松树纯林中收集蕈体。
- A pair of primers was designed based on the analysis of MADS3 from Betula petulla and AP1 from Arabidopsis thaliana. 在分析了欧洲白桦MADS3与拟南芥AP1中的保守性后,设计了一对引物。
- 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。
- We still skim the backwaters of ponds and streams for the seed of Betula, Acer Salix and Populus species. 我们仍然要在池塘的静水上和溪流中捞取桦木,槭树、杨、柳等树的种子。
- The genetic variations of seedling traits among open-pollinated families of plus trees of Betula luminfera H. Winkl. 光皮桦优良单株自由授粉子代苗期性状的遗传变异。
- Betula ermanii and Alnus mandshurica predominated in the colonizing woody species on forest boundaries. 林缘入侵物种主要由岳桦和东北赤杨组成。
- Septoria polygonorum Desm. 红蓼壳针孢
- 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
- Arimatsu economic timber, Parkinson, Chatham, Betula, Tilia, Green and other species. 经济用材林有松、柏、漆、桦、椴、青等树种。
- The authors reported 39 kinds of diseases on chrysanthemum in China.The main diseases included brown spot, black spot, powdery mildew and bacteria with caused by Septoria chrysanthemi-indica. 摘要我国菊花主要病害有4大类共39种,其中危害严重的有11种,如褐斑病、黑斑病、白粉病、细菌性疫病、不孕病毒病、菊花矮化病等。
- In coMpetition with other accoMpanying species, the Betula luMinifera is a predoMinant tree at present. 另外,光皮桦在与其它主要伴生树种的竞争中,目前处于优势地位。