Effects of Arbuscular Mycorrhizal Fungi on Growth of Poncirus trifoliate Seedlings under Iron Deficiency and Heavy Bicarbonate Stresses

ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (4): 469-474.

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Effects of Arbuscular Mycorrhizal Fungi on Growth of Poncirus trifoliate Seedlings under Iron Deficiency and Heavy Bicarbonate Stresses

WANG Ming-yuan¹, XIA Ren-xue^1*, WANG You-shan², ZHOU Kai-bing³, WANG Peng¹, and NI Hai-zhi¹

(¹Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; ² Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; ³College of Life Science and Agronomy, Hainan University, Haikou 570228, China)

Received:2007-08-13 Revised:2007-12-25 Online:2008-04-25 Published:2008-04-25
Contact: XIA Ren-xue

Abstract

Abstract:

Effects of arbuscular mycorrhiza (AM) fungus (Glomus versiforme) on growth and iron nutriton of trifoliate orange [Poncirus trifoliata (L.) Raf.] were investigated with a sand culture under iron deficiency and heavy bicarbonate stress. Results showed that the colonization of Glomus versiforme significantly increased the plant height, stem diameter, shoot and root dry mass under bicarbonate stress at pH 7.0 and pH 8.0. AM fungus inoculation significantly enhanced the accumulation of chlorophyll and active iron, and increased Fe/P, and decreased 50(10P+K)/Fe ratios, suggesting that arbuscular mycorrhizal fungi alleviate chlorosis caused by iron-deficiency in trifoliate orange.

Key words: citrus, Poncirus trifoliata (L.) Raf, arbuscular mycorrhizal fungi, trifoliate orange, bicarbonate, Active iron

CLC Number:

S 666

WANG Ming-yuan;XIA Ren-xue;WANG You-shan;ZHOU Kai-bing;WANG Peng;and NI Hai-zhi. Effects of Arbuscular Mycorrhizal Fungi on Growth of Poncirus trifoliate Seedlings under Iron Deficiency and Heavy Bicarbonate Stresses[J]. ACTA HORTICULTURAE SINICA, 2008, 35(4): 469-474.

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Effects of Arbuscular Mycorrhizal Fungi on Growth of Poncirus trifoliate Seedlings under Iron Deficiency and Heavy Bicarbonate Stresses

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