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The Effect of Flooding on the Germination ofXanthium sibiricum Seed in the Water-level Fluctuation Zone of the Three Gorges Reservoir
Author(s): WANG Qiang, YUAN Xing-Zhong, LIU Hong, LIN Fang-Miao, CHENG Zhong-Li, ZHANG Yue-Wei
Pages: 328-
333
Year: 2011
Issue:
4
Journal: Wetland Science
Abstract: 三峡水库实验性蓄水后,水库消落带内出现了罕见的苍耳(Xanthium sibiricum)带.通过对不同水淹处理后苍耳种子萌发特性的测定,研究水淹对苍耳种子萌发的影响.结果表明,苍耳种子具有较强的耐淹能力,即使受近8个月原位水淹胁迫,90%以上的苍耳种子依然保持有生活力.在25℃下,原位水淹的苍耳种子去总苞后的发芽率显著降低,并且发芽率随着水淹强度的增加而降低.在25℃且种子未去总苞条件下,室内干...
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