Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition
2017
Giri, Bhoopander
In pursuit of salinity-mycorrhiza interaction, a pot experiment was conducted to determine the dependence of Gliricidia sepium on arbuscular mycorrhizal association under salinity stress, which was imposed using different concentrations of sodium chloride solutions. The present study revealed that arbuscular mycorrhizal fungus; Rhizophagus fasciculatus significantly increased growth and biomass of G. sepium plants under saline condition. G. sepium showed a high degree of dependence on mycorrhizal symbiosis under saline as compared to non-saline condition. Under non-saline condition (SS0), G. sepium plants exhibited 23.9% dependence on R. fasciculatus, which increased with increase in the levels of salinity. At SS3 level, G. sepium plants showed 46.6% mycorrhizal dependency followed by SS2 and SS1 levels of salinity. However, there was no significant difference between mycorrhizal dependency of G. sepium at SS1 and SS2 levels of salinity. Improved growth of G. sepium under salinity stress revealed R. fasciculatus a promising inoculant for the reclamation of degraded saline soils.
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