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Studies on salt stress tolerance of citrus rootstock genotypes with arbuscular mycorrhizal fungi

Author

Listed:
  • A. A. Murkute

    (Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India)

  • S. Sharma

    (Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India)

  • S. K. Singh

    (Division of Fruit and Horticultural Technology, Indian Agricultural Research Institute, New Delhi, India)

Abstract

Citrus is grouped under the salt sensitive crops. Mycorrhizal fungi, a symbiotic relationship between plant roots and beneficial fungi, are supposed to impart the stress tolerance in the host plants. The stress tolerance improved due to Arbuscular Mycorrhizal fungi (AM fungi) colonization can be attributed to enhanced mineral nutrition. In the present study the efforts are made to evaluate the effectiveness of AM fungi with two citrus genotypes under salt stress. Three-month-old seedlings of Karna Khatta (Citrus Karna) and Troyer Citrange (Poncirus trifoliata × Citrus sinensis) were inoculated with the indigenous soil based AM inocula (mixed strains). The salinity gradient was developed by frequent irrigation with NaCl (0, 50, 100, 150 mM w/v). The results indicated that all the physical parameters were affected with increasing salinity. The proline accumulation increased while the chlorophyll, calcium and magnesium contents decreased significantly with increasing salinity. In general, the decreased AM colonization did not show any significant effects under salt stress.

Suggested Citation

  • A. A. Murkute & S. Sharma & S. K. Singh, 2006. "Studies on salt stress tolerance of citrus rootstock genotypes with arbuscular mycorrhizal fungi," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 33(2), pages 70-76.
    • Handle: RePEc:caa:jnlhor:v:33:y:2006:i:2:id:3742-hortsci
    DOI: 10.17221/3742-HORTSCI
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    Cited by:

    1. Q.S. Wu & Y.N. Zou & W. Liu & X.F. Ye & H.F. Zai & L.J. Zhao, 2010. "Alleviation of salt stress in citrus seedlings inoculated with mycorrhiza: changes in leaf antioxidant defense systems," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(10), pages 470-475.

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