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首页> 外文期刊>Plant and Soil >Interactive effects of boron and salinity stress on the growth, membranepermeability and mineral composition of tomato and cucumber plants
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Interactive effects of boron and salinity stress on the growth, membranepermeability and mineral composition of tomato and cucumber plants

机译:硼和盐胁迫对番茄和黄瓜植物生长,膜通透性和矿物质组成的相互作用

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摘要

A greenhouse study was conducted in order to determine interactive effects of NaCl salinity and B on the growth, sodium (Na), chloride (Cl), boron (B), potassium (K) concentrations and membrane permeability of salt resistant Tomato (Lycopersicon esculentum L. cv. Lale F-1) and salt sensitive cucumber (Cucumis sativus L. cv. Santana F-1) plants. Plants were grown in a factorial combination of NaCl (0 and 30 mM for cucumber and 0 and 40 mM for tomato) and B (0, 5, 10 and 20 mg kg(-1) soil). Boron toxicity symptoms appeared at 5 mg kg(-1) B treatments in both plants. Salinity caused an increase in leaf injury due to B toxicity, but it was more severe in cucumber. Dry weights of the plants decreased with the increasing levels of applied B in nonsaline conditions, but the decrease in dry weights due to B toxicity was more pronounced in saline conditions especially in cucumber. Salinity x B interaction on the concentration of B in both plants was found significant. However, increase in B concentrations of tomato decreased under saline conditions when compared to nonsaline conditions. Contrary to this, B concentration of cucumber increased as a result of increasing levels of applied B and salinity. Salinity increased Na and Cl concentrations of both plants.
机译:为了确定NaCl盐度和B对耐盐番茄(Lycopersicon esculentum)的生长,钠(Na),氯化物(Cl),硼(B),钾(K)浓度和膜通透性的相互作用,进行了温室研究。 L. cv。Lale F-1)和对盐敏感的黄瓜(Cucumis sativus L. cv。Santana F-1)植物。植物在NaCl(0和30 mM的黄瓜,0和40 mM的番茄)和B(0、5、10和20 mg kg(-1)土壤)的因子分解组合中生长。两种植物在5 mg kg(-1)B处理下均出现硼中毒症状。盐度由于B毒性而导致叶片伤害增加,但在黄瓜中更为严重。在非盐碱条件下,植物的干重随施用的B含量的增加而降低,但由于B毒性所致的干重在盐渍条件下尤其是黄瓜中更为明显。在两株植物中,盐度x B相互作用对B的浓度均具有显着影响。但是,与非盐条件相比,在盐条件下番茄B浓度的增加降低了。与此相反,黄瓜中的硼浓度由于施用的硼和盐分水平的增加而增加。盐度增加了两种植物的Na和Cl浓度。

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