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Influence of Mannitol Priming on Maize Seeds Under Induced Water Stress

Author

Listed:
  • P. Dhakal*

    (Institute of Agriculture and Animal Science, Lamjung Campus, Nepal)

  • R. Subedi

    (Institute of Agriculture and Animal Science, Lamjung Campus, Nepal)

Abstract

Drought stress is seen as the major abiotic stress in the modern day agriculture and hinders crop germination and seedling establishment and maize suffers the problem more as a summer season crop. Priming is a physiological method to overcome such deleterious effect of water stress with the main aim of increasing the germination of seed. A lab experiment was therefore performed with maize seed priming using Mannitol @ 0%, 2%, 4%, 6% and 8% (w/v) concentrations subjected to germination under induced drought of 0 Mpa, 0.15 Mpa, 0.5 MPa, 1.0 MPa and 1.7 MPa using NaCl. The experiment was laid in completely randomized design (CRD) with three replications. Priming with mannitol reduced the Mean Germination Time (MGT); the best result obtained in seeds primed with 2% mannitol. However, the final germination count, Relative Water Content (RWC) and root and shoot length remained unaltered. Germination activities reduced with increasing moisture stress. The study indicated that priming with mannitol could improve the speed of germination in maize seeds.

Suggested Citation

  • P. Dhakal* & R. Subedi, 2020. "Influence of Mannitol Priming on Maize Seeds Under Induced Water Stress," Journal of Agriculture and Crops, Academic Research Publishing Group, vol. 6(3), pages 27-31, 03-2020.
    • Handle: RePEc:arp:jacarp:2020:p:27-31
    DOI: 10.32861/jac.63.27.31
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