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《Science Technology and Engineering》 2014-17
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Effect of Water Stress on Branch Pattern of Leymus Chinensis Rhizome in Songnen Plain of China

XUAN Yi-chun;BAO Guo-zhang;WANG Xin;College of Environment and Resources,Jilin University;  
In order to study the effect of Leymus Chinensis rhizome under different water supplies,seedlings were determined under natural conditions with five water treatments. The diameter,branch angle and node length of Leymus Chinensis rhizome were tested. The research shows that rhizome diameter under water stress condition rose first and dropped later. The diameter is the biggest in the whole growth stage under the treatment of 58. 43% water stress. The branch angle presents an obvious single peak cure,especially the treatment with the soil water content5. 81% is superior to the other treatments. The five treatments all reach the highest on the 91th day,the change width is W5 W4 W1 W3 W2. Under the water stress of 5. 8%,11. 90%,31. 83%,the node length has no significant differences. These results also reveal that the diameter,branch angle and node length of Leymus Chinensis rhizome are sensitive to soil moisture content.
【Fund】: 国家自然科学基金(31270367)资助
【CateGory Index】: S543.9;S812.4
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