The effect of chromium and aluminum on growth, root morphology, photosynthetic parameters and transpiration of the two barley cultivars

被引：53
作者：
Ali, S. [1 ]
Zeng, F. [1 ]
Qiu, L. [1 ]
Zhang, G. [1 ]
机构：
[1] Zhejiang Univ, Dept Agron, Coll Agr & Biotechnol, Hangzhou 310029, Zhejiang, Peoples R China
来源：
BIOLOGIA PLANTARUM | 2011年 / 55卷 / 02期
关键词：
acidity; chlorophyll content; chlorophyll fluorescence; Hordeum vulgare; stomatal conductance; PHYSIOLOGICAL-PARAMETERS; HEXAVALENT CHROMIUM; TOXICITY; CADMIUM; WHEAT; RESPONSES; AL; ACCUMULATION; CHLOROPHYLL; MAIZE;
D O I：
10.1007/s10535-011-0041-7
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The effect of aluminum and chromium on two barley genotypes differing in Al tolerance was studied in a hydroponic experiment. Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (Fv/Fm), net photosynthetic rate (P-N), intercellular CO2 concentration (c(i)), stomatal conductance (g(s)) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119. Cr stress also caused marked reduction in growth and photosynthetic traits in barley plants. Higher reduction was observed at pH 4.0 as compared to pH 6.5. Combined stress of Cr and Al, caused further reduction in growth and photosynthetic parameters.
引用
收藏
页码：291 / 296
页数：6
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