您要查找的是不是:
- Populus laurifolian. 苦杨
- Triploid clones of Populus tomentosa Carr. 三倍体毛白杨
- Populus alba L. var. pyramidalis Bunge. 新疆杨
- Studies on Seedling Traits of New Clones of Populus tomentosa Carr. 毛白杨新无性系苗期性状对比研究。
- The Geographic Distribution and Origin of Populus L. 杨属地理分布与起源初探。
- Fig.1. Shoot primordia on the callus of Populus eupheratica. 对愈伤组织继代培养与不定芽再生的关系进行了研究,结果见图1。
- Oxygen delignification of populus kraft pu1p is studied. 进行了杨木硫酸盐浆氧脱木素的研究。
- Studies on the Pulping Properties of Triploid Clones of Populus tomentosa Carr. 三倍体毛白杨纸浆材制浆特性研究。
- The Deepfreeze and Sowing Seeds Technology of Populus euphratica Oliv. 胡杨种子冷藏及播种技术。
- The Tissue Culture Techniques of Populus alba L. Var. Pyramidalis Bge. 新疆杨组织培养技术。
- Study on the Lignin Structure of Triploid Clone of Populus tomentosa Carr. 三倍体毛白杨木素结构的研究。
- Variations of fiber forms of populus tomentosa Carr. Triploid clones. 三倍体毛白杨纤维形态变异的研究。
- Title: Peroxide Bleaching of CTMP from the Triploid Populus Tomentosa Carr. 关键词:三倍体毛白杨;CTMP;过渡金属离子;过氧化氢漂白
- Title: The Deepfreeze and Sowing Seeds Technology of Populus euphratica Oliv. 关键词:胡杨;种子;冷藏技术;播种技术
- Poplar(Populus deltoides) veneers were used to make plywood for concrete forms. 采用浸胶玻璃纤维布强化方法制造杨木胶合板模板。
- Effects of fertilizer treatments on seedling growth and cold resistance of triploid Populus tomentosa. 不同施肥处理对三倍体毛白杨苗木生长及抗寒性的影响。
- A Diversity Study of Rhizosphere and Endophytic Fungi from Populus euphratica Oliver. 胡杨根际真菌与内生真菌多样性研究。
- A Study on the Distant Hybridization between Populus alba Linn. And Ulmus pumila Linn. 银白杨与白榆远缘杂交的研究。
- Studies on Clonal Test and Spacing Effect of New Clones of Populus tomentosa Carr. 毛白杨新无性系对比试验与造林密度效应研究。
- STUDY ON COLLECTION, PRESERVATION AND GENETIC VALUATION OF GENETIC RESOURCES OF POPULUS DELTOIDES BARTR. 美洲黑杨基因资源收存及其遗传评价的研究。