| 人工淹水逆境处理对美洲黑杨苗生理特性的影响 |
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| 引用本文： | 曹福亮,法门，罗伯.人工淹水逆境处理对美洲黑杨苗生理特性的影响[J].南京林业大学学报(自然科学版),1993,17(2):18-24. |
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| 作者姓名： | 曹福亮 法门，罗伯 |
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| 作者单位： | [1]南京林业大学 [2]加拿大安大略省雷克海德大学 |
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| 摘 要： | 本文主要从下述三方面对美洲黑杨16个无性系苗在人工淹水处理后，其生理特性的变化进行了初步研究：1、人工淹水深度对无性系苗生理特性的影响；2、人工淹水持续时间长短对无性系苗生理特性的影响；3、不同无性系苗在遭受淹水胁迫后生理特性的变化，被测定的生理指标包括可变荧光Fv、叶扩散阻力re(S.cm^-2)、蒸腾强度Tr(ugH2O.cm^-2.S^-1)和叶水势Ψ（Bar)。研究结果表明，人工淹水深度与持续时间长短对16个美洲黑杨无性系苗的生理特性有明显的影响。
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| 关 键 词： | 美洲黑杨 人工淹水 可变荧光 叶扩散阻力 蒸腾强度 叶水势 幼苗 生理特性 |
EFFECT OF ARTIFICIAL FLOODING ON PHYSIOLOGICAL CHARACTERISTICS OF POPULUS DELTOIDES CLONES |
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| Cao Fuliang Robert E. Farmer.EFFECT OF ARTIFICIAL FLOODING ON PHYSIOLOGICAL CHARACTERISTICS OF POPULUS DELTOIDES CLONES[J].Journal of Nanjing Forestry University(Natural Sciences ),1993,17(2):18-24. |
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| Authors: | Cao Fuliang Robert E Farmer |
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| Abstract: | Authors investigated the effect of artificial flooding on physiological charactersitics of 16 poplar clones from the following three avenues; (1) effects of artificial flooding water level on physiological reponses among the clones; (2) effects of artificial flooding duration on physiological charac- terisitics; (3) clonal variation on resistance to flooding. Measured indicators include variable chlorophyll a fluorescence Fv. , leaf diffusion resistancere re, leaf transpiration rate Tr, leaf water potential . The results revealed that there existed significant differences among the clones in physiological values and there were remarkable effects of artificial flooding on both flooding duration and water level. Multivariate analyses showed that the clones were classified into three types of tolerance to flooding. |
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| Keywords: | Populus deltoides clones Artificial flooding Variable chlorophyll a fluorescence Leaf diffusion resistance Leaf transpiration rate Leaf water potential |
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