Effect of Silicon on Growth and Development of Strawberry under Water Deficit Conditions

作     者：DEHGHANIPOODEH Safoora GHOBADI Cyrus BANINASAB Bahram GHEYSARI Mahdi SHIRANIBIDABADI Siamak 

作者机构：Department of Horticulture College of Agriculture Isfahan University of Technology IUT Water Engineering Department College of Agriculture Isfahan University of Technology 

出 版 物：《Horticultural Plant Journal》 (园艺学报（英文版）)

年 卷 期：2018年第4卷第6期

页      面：226-232页

核心收录：

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

主　　题：Fragaria×ananassa potassium silicate water stress photosynthesis mineral nutrient 

摘      要：Water stress is a major factor that limits agricultural crop production. Silicon(Si) is generally considered as a beneficial element for the growth of higher plants, especially for those grown under stressful environment. This study was conducted to examine the effects of Si on growth and development of strawberry(Fragaria × ananassa ‘Camarosa ) under water stress conditions. A factorial experiment, in a completely randomized design, was used to investigate the effects of three irrigation levels and four Si treatments consisting of 0, 5, 10, and 15 mmol·L^(-1) potassium silicate(K_2 SiO_3). The results showed that an increase in the levels of water stress caused a decrease in most of the quantitative characteristics such as specific leaf area, chlorophyll fluorescence, net photosynthesis rate, and stomata conductance; addition of Si significantly increased most of the mentioned factors; water stress increased electrolyte leakage, proline, and water use efficiency(WUE); Si treatment significantly decreased transpiration rate and improved chlorophyll content and WUE. Water stress stimulated mineral nutrient absorption whereas Si application decreased it under water stress. In conclusion, it was found that in most of the investigated factors, 10 mmol·L^(-1) potassium silicate had the best effect on growth and development of strawberry. Besides, Si application had beneficial effects on strawberry plants and the addition of it could alleviate water stress.