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Related Experiment Videos

Antitranspirant-induced increases in leaf water potential increase tuber calcium and decrease tuber necrosis in

K Win1, G A Berkowitz, M Henninger

  • 1Horticulture Department, Cook College, Rutgers-The State University of New Jersey, New Brunswick, New Jersey 08903.

Plant Physiology
|May 1, 1991
PubMed
Summary

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Applying antitranspirants to potato plants during drought increased tuber calcium and reduced necrosis. This suggests managing water potential can improve potato tuber quality and calcium uptake.

Area of Science:

  • Agricultural Science
  • Plant Physiology
  • Soil Science

Background:

  • Calcium deficiency in potato tubers can lead to necrosis, impacting crop quality.
  • Water potential gradients between plant tissues are crucial during drought stress.
  • Understanding these gradients is key to managing nutrient uptake and preventing physiological disorders.

Purpose of the Study:

  • To investigate if altering leaf:tuber water potential gradients can enhance calcium accumulation in potato tubers.
  • To determine if this intervention can mitigate calcium deficiency-related tuber necrosis under low soil moisture conditions.

Main Methods:

  • Field-grown potato (Solanum tuberosum L.) plants were subjected to low soil moisture.
  • Antitranspirant formulations (wax emulsion and surfactant) were applied to alter leaf water potential.

Related Experiment Videos

  • Leaf and tuber water potential, calcium content, and tuber necrosis were assessed.

    • Main Results:

    • Antitranspirant application significantly increased leaf water potential during drought.
    • This reduced the leaf:tuber water potential gradient.
    • Treated plants showed decreased leaf calcium and increased tuber calcium, with reduced tuber necrosis.

    Conclusions:

    • Altering water potential gradients via antitranspirants can improve calcium distribution in potato plants.
    • This method shows promise for enhancing tuber quality by reducing calcium deficiency-related necrosis.