International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2020, Vol. 2, Issue 4
Mitigating low temperature and draught stress using psychrotolerant rhizobacteria in lentil

Jaskiran Kaur, Veena Khanna, Mandeep Singh Hunjan

Ten psychrotolerant rhizobacterial isolates were evaluated for their PGP traits at 10˚, 20° and 30 °C. Maximum P-solubilization was recorded by LR-5 (66.5, 60.6 and 52.4µg/ml at 10°, 20° and 30° respectively). The highest IAA producer was LR-5 (4.6, 10.8 and 14.8µg/ml at 10 °C, 20 °C and 30 °C respectively) followed by LR-3 (3.6, 7.5 and 12.4 µg/ml at 10 °C, 20 °C and 30 °C respectively). Three isolates LR-1, LR-3 and LR-5 confirmed the presence of ACCD activity.Under axenic conditions the highest root length was recorded in treatment comprising of Rhizobium (R)+P LR-57.05, 6.80 and 5.70cm) followed by R+LR-3 (5.60, 4.45 and 4.60cm) at 0.2, 0.4 and 0.6 MPa respectively. Similar pattern was seen in case of shoot length where, highest growth was shown by R+LR-5 (11.0, 8.4 and 6.8cm) followed by R+LR-3 (7.6, 5.8 and 4.9) at 0.2, 0.4 and 0.6 MPa respectively. In case of root and shoot fresh weight also R+LR-5 proved to be the most promising treatment.
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How to cite this article:
Jaskiran Kaur, Veena Khanna, Mandeep Singh Hunjan. Mitigating low temperature and draught stress using psychrotolerant rhizobacteria in lentil. International Journal of Ecology and Environmental Sciences. 2020; 2(4): 731-735.