1.
Response of Narrow Crown Black Poplar and Narrow Crown Black-Cathay Poplar to Salt Stress
窄冠黑杨与窄冠黑青杨对盐胁迫的响应
2.
The Study on Hybridization between Populus Deltoides Marsh (Ⅰ-69,Ⅰ-57) and P.Cathayana Rehd, P.Szechuanica Schneid, P.Purdomii Rehd and the Investigation, Preliminary Selection of Hybrid Seedlings
美洲黑杨与青杨、川杨、卜氏杨远缘杂交及苗期测定、选择研究
3.
Analysis on Anti-leaf Rust Ability of America Black Poplar×Cathay Poplar Hybrid Clones
美洲黑杨×青杨杂交无性系抗锈病能力分析
4.
Genetic Linkage Mapping and QTLs Analysis for Important Wood Property in F_2 Population of Populus Deltoides×P. cathayana;
美洲黑杨×青杨连锁图构建及重要材性QTLs分析
5.
Intercropping of narrow crown poplar and agricultural crops will be popularized and networks of forest belts on farmland will be built.
在平原农区，大力推广窄冠型杨树与农作物间作，并营造农田林网；
6.
One-year-old seedling traits of Populus deltoides hybrids with P. cathayana,P. szechuanica,and P. purdomii
美洲黑杨与青杨、川杨和卜氏杨人工杂交及杂种苗生长和抗病性状测定
7.
Artificial Hybridization and Seedling Traits Test、Select of Populus Deltoides and P.Cathayana
美洲黑杨与青杨人工杂交及杂种苗苗期性状测定、选择研究
8.
Photosynthetic characteristics of hybrid clones of Populus deltoides and P. ussuriensis
美洲黑杨与大青杨杂种无性系苗期光合特性研究
9.
Endangered Causes and Conservation Strategies of Populus shanxiensis in Heichashan Mountain Nature Reserve,Shanxi Province
山西黑茶山自然保护区青毛杨的濒危原因和保护对策
10.
canopy characteristics of narrow row cotton
窄行棉花苗冠被覆特性
11.
Cross-breeding and Hybrid Analysis by SSR Markers between Populus Nigra and P.szechuanica, P.yunnanensis;
欧洲黑杨与川杨、滇杨杂交及杂种苗的SSR分析
12.
Any of various other black-crowned birds, such as the chickadee.
黑冠鸟，山雀一种其他黑冠鸟，如山雀
13.
Native Auxiliary Species of Mixed Broadleaf-Korean Pine Stands--Populus ussuriensis Kom.
阔叶红松林的伴生乡土杨树——大青杨
14.
Take the case of Yang Xiaomin in Qinghai Province for example.
青海省杨小民那个案子，
15.
willow trees may have died back, but there is a time of regreening;
杨柳枯了，有再青的时候；
16.
Where willows harmonize the wind And green hills lighten the cares of the world.
杨柳散和风, 青山澹吾虑。
17.
A Fractal Approach to Crown Structure and Rooting Characteristics of Poplar and the Strategies of Poplar Breeding;
杨树冠型、根系的分形特征及杨树改良策略
18.
Comparative study of dual-source CT coronary angiography and X-ray coronary angiography in the diagnosis of coronary artery stenosis
双源CT冠脉成像在冠脉狭窄诊断中的价值