Comparison on Rhizospheric Microenvironment of Three Salt-tolerant Plants

doi:10.7522/j.issn.1000-694X.2013.00298

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (1): 184-190 DOI: 10.7522/j.issn.1000-694X.2013.00298

Comparison on Rhizospheric Microenvironment of Three Salt-tolerant Plants

Zhang Huaishan^1,2, Dai Lilan³, Zhao Guiqin¹, Wang Ping³, Wang Chunmei²

1. College of Pratacultural Science, Gansu Agriculturial University, Lanzhou 730070, China;
2. Lanzhou Institute of Animal Sciences and Veterinary Pharmaceutics, Chinese Academy of Agriculture Science, Lanzhou 730050, China;
3. Lanzhou Agriculture Science Research Center, Lanzhou 730000, China

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Abstract Adaptation of Pennisetum longissimum var. intermedium, Medicago sativa and Avena sativa growing in saline soils in Qinwangchuan of Gansu, China was investigated by measuring the changes of rhizospheric pH value, electronic conductivity (EC), content of salt ions and organic matter at 90 d, 120 d and 150 d after sowing. The results showed that the three plants had adjustment effects on saline soil microenvironment, which were proved by decreases of the pH, EC, content of Na⁺, SO₄^2-, Cl^- and Ca²⁺and increases of the content of organic matter progressively during the whole growth period. Medicago Sativa had the greatest effect on pH, the next was Pennisetum longissimum var. intermedium, followed by Avena sativa, decreased by 2.18%, 2.06% and 1.21% at 150 d after sowing, respectively. Pennisetum longissimum var. intermedium was found with the greatest effect on EC, the next was Medicago sativa, followed by Avena sativa, decreased by 42.69%, 33.29% and 28.33% at 150 d afer sowing, respectively. During the growth period, the changes in the content of Na⁺, SO₄^2- and Cl^- were the greatest for Pennisetum longissimum var. intermedium, while Medicago sativa had better absorption for Ca²⁺. The content of organic matter increased continuously within the whole growth period for Pennisetum longissimum var. intermedium. A significant increase of the content of organic matter for Medicago sativa was found during earlier growth stage, which slowed down during medium and later growth stages. In conclusion, Pennisetum longissimum var. intermedium had the best adaptation and improvement capacity in saline soil, followed by Medicago sativa and Avena sativa.

Key words: salt-tolerant plant soil salinization rhizosphere soil Qinwangchuan

Received: 06 January 2013 Published: 20 January 2014

ZTFLH:

Q948.11

Corresponding Authors: 赵桂琴，zhaogq@gsau.edu.cn E-mail: zhaogq@gsau.edu.cn



	Articles by authors
	Zhang Huaishan
	Dai Lilan
	Zhao Guiqin
	Wang Ping
	Wang Chunmei

Cite this article:

Zhang Huaishan, Dai Lilan, Zhao Guiqin, Wang Ping, Wang Chunmei. Comparison on Rhizospheric Microenvironment of Three Salt-tolerant Plants. JOURNAL OF DESERT RESEARCH, 2014, 34(1): 184-190.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00298 OR http://www.desert.ac.cn/EN/Y2014/V34/I1/184

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