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首页> 外文期刊>Journal of Science and Technology of Greenhouse Culture >Effect of salinity stress and salicylic acid on some morphophysiological characteristics of eggplant (Solanum melongena var. Taki) in soilless culture
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Effect of salinity stress and salicylic acid on some morphophysiological characteristics of eggplant (Solanum melongena var. Taki) in soilless culture

机译：盐分胁迫和水杨酸对无土栽培茄子（Solanum melongena var。Taki）某些形态生理特性的影响

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Salinity is a serious problem for expansion of agriculture, especially in arid and semi-arid regions. On the other hand, various benefits of soilless culture have caused the expansion of this system in these areas. In order to investigate the effect of different levels of salicylic acid and salinity stress on vegetative and physiological characteristics of eggplant, a factorial experiment was conducted with two factors, including salicylic acid at three levels (0, 50 and 100 mg/L) and salinity stress at three levels (0, 75 and 150 mM NaCl) with 3 replications. The results showed that the main and interaction effects of different levels of salinity and salicylic acid were significant (except stem diameter, chlorophyll b and calcium concentration) on growth parameters, photosynthetic pigments, soluble sugars, proline and mineral elements. Plant height, number of leaves, leaf area, fresh and dry weight of shoots, fresh and dry weight of roots, photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids), soluble sugars and K content were decreased by increasing salinity level. Application of salicylic acid improved these parameters. But, Na+ and Cl contents were increased under the salinity stress. Application of salicylic acid partially improved this situation. Also, proline content was increased by increasing salinity and salicylic acid levels. Based on the obtained results, and the problem of high salinity level of irrigation water in greenhouses, application of salicylic acid can improve plant growth under saline conditions.
机译：盐度是农业发展的严重问题，特别是在干旱和半干旱地区。另一方面，无土栽培的各种好处已导致该系统在这些地区的扩展。为了研究不同水平的水杨酸和盐分胁迫对茄子营养和生理特性的影响，对两个因素进行了析因试验，包括三个水平（0、50和100 mg / L）的水杨酸和盐度在三个水平（0、75和150 mM NaCl）的压力下重复3次。结果表明，不同水平的盐度和水杨酸（茎直径，叶绿素b和钙浓度除外）对生长参数，光合色素，可溶性糖，脯氨酸和矿质元素的主要影响和相互作用是显着的。盐度提高了植株的高度，叶片数，叶面积，嫩茎的干重，根的鲜重和干重，光合色素（叶绿素a，叶绿素b和类胡萝卜素），可溶性糖和钾的含量。水杨酸的应用改善了这些参数。但是，在盐分胁迫下，Na +和Cl的含量增加。水杨酸的应用部分改善了这种情况。另外，脯氨酸含量通过增加盐度和水杨酸水平而增加。根据获得的结果，以及大棚灌溉水盐度高的问题，水杨酸的施用可以改善盐分条件下的植物生长。

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