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- Abstract Ageratina adenophora (Crofton weed) is one of the most widespread invasive species in China. 摘要 紫茎泽兰是我国最为严重的入侵物种之一。
- The results showed that there were differences in their pathogenicity to crofton weed. 结果显示，链格孢菌菌株的致病性差异明显；
- The un-flowering individuals of Crofton weed keep growing all year, and its growth rate would be influenced by the illumination intensity, humidity and temperature distinctly. 未开花结实的紫茎泽兰个体可终年持续生长, 生长速率受光照、湿度和温度影响显著。
- QIANG Sheng.The history and status of the study on crofton weed (Eupatorium adenophorum Spreng.) a worst world-wide weed[J].Journal of Wuhan Botanical Research,1998,16:366-372. [3]强胜.;世界性恶性杂草:紫茎泽兰研究的历史及现状[J]
- The growth character of crofton weed in mixture transplanting with different green bristlegrass perennial ryegrass and Trifolium repens under different management conditions was studied. 以狗尾草、黑麦草、白三叶为材料研究了混栽其中的紫茎泽兰在不同肥力条件下的生长状况。
- The physiological and biochemical mechanisms and effects of competition between Bristlegrass and Crofton weedA multiple de Wit replacement series was used between Crofton weed and Bristlegrass. 表明紫茎泽兰经受的种间竞争大于种内竞争，而狗尾草经历的种内竞争大于种间竞争。 狗尾草和紫茎泽兰混种时的相对产量总和(RYT)在所有密度、比例组合时都与1.;0差异不显著，这表明狗尾草和紫茎泽兰的生长需求相同的资源；
- Abstract : The growth character of crofton weed in mixture transplanting with different green bristlegrass perennial ryegrass and Trifolium repens under different management conditions was studied. 摘要 ： 以狗尾草、黑麦草、白三叶为材料研究了混栽其中的紫茎泽兰在不同肥力条件下的生长状况。
- The result of this study further indicated that reinforcement each other of both sexual reproduction and clone would promote the renewal and spread of their population increase of Crofton weed. 本研究结果进一步揭示了紫茎泽兰是通过有性生殖与无性生殖相互补充的繁殖策略进行种群更新与种群扩张的。
- Crofton weed ( Eupatorium adenophorum ) 紫茎泽兰
- Crofton weed ( Eupatorium adenophorum spreng) 紫茎泽兰
- Crofton weed (Eupatorium adenophornm) 紫茎泽兰
- Crofton weed gall fly ( Procecidochares utilis ) 泽兰实蝇
- He weed out one by one the book he do not want. 他把不想要的书一本一本丢掉。
- crofton weeds (Eupatorium adenophorum Spreng. ) 紫茎泽兰
- First thing tomorrow I'll weed the garden. 我明天一大早首先去除园内的杂草。
- We have to weed out unqualified applicants. 我们必须淘汰不合格的申请人。
- Keywords Crofton weed;medium density fiberboard;physical and mechanical properties; 紫茎泽兰;中密度纤维板;物理力学性能;
- Keywords Crofton weed;Biological invasion;Ecological factor;Principal component analysis （PCA）; 紫茎泽兰;生物入侵;生境;主成分分析（PCA）;
- We must weed out the traitors in our midst! 我们必须清除我们中间的叛徒!
- B: 7880 Crofton Avenue, Building 40A, Room 304. B：克劳夫顿大街7880号，40A楼，304室 .
