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A Study on the Physiological Indexes of Drought-resistance to Seedlings of Seven Afforestation Tree Species in the South of China
Author(s): 
Pages: 13-16
Year: Issue:  4
Journal: JOURNAL OF NANJING FORESTRY UNIVERSITY(NATURAL SCIENCE EDITION)

Keyword:  水分胁迫生理指标抗旱性幼苗;
Abstract: 通过对水分胁迫下南方7个树种幼苗叶水势、相对水分亏缺、叶保水力、膜透性和根系活力等指标的测定和研究,比较各树种间的抗旱能力和机理.结果表明:水分胁迫下,各树种间维持水分平衡能力:银杏≈马尾松>杉木≈火炬松>苦楝≈水杉>刺槐;膜伤害大小:马尾松<银杏<火炬松<杉木<苦楝<刺槐<水杉;根系活力大小:杉木≈马尾松≈银杏>火炬松>苦楝≈刺槐>水杉.综合以上结果,7种苗木抗旱能力为:银杏≈马尾松>杉木≈火炬松>苦楝>水杉≈刺槐.
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