Interactive effects of sodium chloride, sodium sulfate, calcium sulfate, and calcium chloride on snapbean growth, photosynthesis, and ion uptake
Interactive effects of sodium chloride, sodium sulfate, calcium sulfate, and calcium chloride on snapbean growth, photosynthesis, and ion uptake
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氯化钠、硫酸钠、硫酸钙和氯化钙对豌豆生长、光合作用和离子吸收的相互作用
DOI：
10.1080/01904169509364946
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发表时间：
1995
影响因子：
2.1
通讯作者：
M. Khan
中科院分区：
文献类型：
--
作者：
S. Awada;W. F. Campbell;L. Dudley;J. J. Jurinak;M. Khan
摘要土壤中钠的过量积累是干旱半干旱地区农业生产中的一个问题，钙可以改善土壤中钠的过量积累。钙盐缓解植物钠胁迫的机制比钙盐中阴离子的作用受到更多的关注。我们的目的是确定氯离子（Cl-）和硫酸根（SO 4 2-）阴离子对Ca改善Na胁迫的相对影响。我们暴露了菜豆，CV.在温室条件下，在1 L聚苯乙烯泡沫塑料盆中生长的竞争者幼苗，以0、15、30、45和60 mmol/L的氯化钠（NaCl）或硫酸钠（Na 2SO 4）与15和30 mmol/L的硫酸钙（CaSO 4）或氯化钙（CaCl 2）组合。每四天用300 mL盐溶液（浸出分数= 0.25）灌溉每个泡沫聚苯乙烯盆中的植物，持续四周。增加钠浓度降低地上部干重，豆荚的数量和重量，和结节的数量。光合速率
Abstract Excessive sodium (Na) accumulation in soil, which can be a problem for production agriculture in arid and semiarid regions, may be ameliorated by calcium (Ca). The mechanisms of Ca amelioration of Na stress in plants have received much more attention than has the effect of the anion of the Ca salt. Our objective was to determine the relative effects of the chloride (Cl‐) and sulfate (SO4 2‐) anions on Ca amelioration of Na stress. We exposed Phaseolus vulgaris L., cv. Contender seedlings growing in 1‐L styrofoam pots under greenhouse conditions to sodum chloride (NaCl) or sodium sulfate (Na2SO4) at concentrations of 0, 15, 30, 45, and 60 mmol/L combined with either 15 and 30 mmol/L of calcium sulfate (CaSO4) or calcium chloride (CaCl2). Plants in each styrofoam pot were irrigated with 300 mL of salt solution (leaching fraction = 0.25) every fourth day for four weeks. Increasing Na concentration decreased shoot dry weight, number and weight of pods, and number of nodules. The photo‐ synthesis rate...