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Publication Type J
Authors Chen, L. H., J. H. Zheng, X. H. Shao, S. S. Shen, Z. H. Yu, X. Y. Mao and T. T. Chang
Title Effects of Trichoderma harzianum T83 on Suaeda salsa L. in coastal saline soil
Source Ecological Engineering
Language English
Author Keywords Coastal saline soil Plant growth promoting fungi Soil microorganism Soil quality sodic lands protein stress na+ Environmental Sciences & Ecology Engineering
Abstract Sustainable biotechnological techniques can transform coastal saline soil into agriculturally viable soil. In the current study, the T83 strain of Trichoderma harzianum was isolated and shown to promote growth of Suaeda salsa L., a halophytic species. We assayed the effects of T83 conidia powder and fertilizer on the physiology of S. salsa as well as the physical and biological properties of the treated soil. Compared to the control plants, the experimental S. salsa plants that received conidia powder and fertilizer exhibited increased fresh masses by 50.5% and 82.7% and increased dry masses by 67.3% and 119.3%, respectively (P < 0.05). The concentrations of proline, organic acids, amino acids, soluble sugars, K+, and Ca2+ were increased in conidia powder and fertilizer treatments (P < 0.05), and increased by 77.5%, 58.3%, 86.9%, 58.7%, 79.3% and 38.8% in fertilizer treatment, respectively. Both powder and fertilizer treatments significantly increased the enzyme activity of peroxidase and superoxide dismutase as well as root vigor (P < 0.05) and decreased malondialdehyde concentration (P < 0.05). Additionally, fertilizer treatments increased enzyme activity of phenol oxidase and catalase. Conidia powder and fertilizer treatments significantly decreased soil bulk density and soil salt concentration, while increasing soil total porosity and field water capacity (P < 0.05). Powder and fertilizer significantly (P < 0.05) increased the populations of total bacteria, total actinomyces, total fungi, ammonifying bacteria (AB), nitrifying bacteria (NB), phosphate-solubilizing bacteria (PHB), and potassium-solubilizing bacteria (PTB). Compared to the control, the fertilizer treatment exhibited populations of total bacteria, total actinomyces, total fungi, AB, NB, PHB, and PTB that had increased by factors of 9.2, 55.9, 6.0, 21.1, 4.0, 9.2 and 5.2, respectively. The T83 fertilizer effectively promoted the growth of S. salsa in saline soil and improved the coastal saline soil quality. (C) 2016 Elsevier B.V. All rights reserved.
Author Address [Chen Li-Hua; Zheng Jin-Hai; Shao Xiao-Hou; Shen Shan-Shan; Yu Zhi-Heng; Mao Xin-Yu; Chang Ting-Ting] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China. [Chen Li-Hua; Shao Xiao-Hou; Shen Shan-Shan; Yu Zhi-Heng; Mao Xin-Yu; Chang Ting-Ting] Minist Educ, Key Lab Efficient Irrigat Drainage & Agr Soil Wat, Nanjing 210098, Jiangsu, Peoples R China. [Chen Li-Hua; Shao Xiao-Hou; Shen Shan-Shan; Yu Zhi-Heng; Mao Xin-Yu; Chang Ting-Ting] Hohai Univ, Coll Water Conservancy & Hydropowder Engn, Nanjing 210098, Jiangsu, Peoples R China. Zheng, JH (reprint author), Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China. jhzheng@hhu.edu.cn
ISSN 0925-8574
ISBN 0925-8574
29-Character Source Abbreviation Ecol. Eng.
Publication Date Jun
Year Published 2016
Volume 91
Beginning Page 58-64
Digital Object Identifier (DOI) 10.1016/j.ecoleng.2016.01.007
Unique Article Identifier WOS:000374766500009
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