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Related Experiment Videos

Changes in Chenopodium rubrum seeds with aging.

Aleksandra Mitrović1, Tanja Ducić, Ivana Liric-Rajlić

  • 1Center for Multidisciplinary Studies, University of Belgrade, Serbia and Montenegro.

Annals of the New York Academy of Sciences
|September 13, 2005
PubMed
Summary

Seed aging in Chenopodium rubrum negatively impacts germination, growth, and flowering due to reduced antioxidative system function. Gibberellic acid can mitigate these age-related declines.

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Area of Science:

  • Plant biology
  • Seed physiology
  • Biochemistry

Background:

  • Seed aging is a critical factor affecting crop yield and plant establishment.
  • The antioxidative system plays a vital role in maintaining seed viability and vigor.
  • Understanding the physiological changes during seed aging is essential for improving agricultural practices.

Purpose of the Study:

  • To investigate the effects of seed aging on the antioxidative system, germination, growth, and flowering of Chenopodium rubrum.
  • To determine the relationship between seed age, enzyme activities, glutathione status, and plant development.
  • To evaluate the potential of gibberellic acid in counteracting age-related declines in seed performance.

Main Methods:

  • Enzyme assays for peroxidase, superoxide dismutase, and catalase activity in imbibed seeds.

Related Experiment Videos

  • Determination of glutathione status in seeds.
  • In vitro germination tests under controlled conditions.
  • In vitro assessment of plant growth and flowering from seeds of different ages.
  • Application of gibberellic acid to evaluate its effect on plant development.

    • Main Results:

    • Younger Chenopodium rubrum seeds exhibited higher activities of peroxidase, superoxide dismutase, and catalase, along with greater glutathione content.
    • Seed germination rates decreased significantly with increasing seed age.
    • Plants derived from older seeds showed reduced growth and lower flowering percentages compared to those from younger seeds.
    • Gibberellic acid treatment lessened the disparities in growth and flowering between plants from young and old seeds.

    Conclusions:

    • Seed aging in Chenopodium rubrum is associated with a decline in the antioxidative system, leading to reduced germination, growth, and flowering.
    • Gibberellic acid demonstrates potential in mitigating the negative effects of seed aging on plant development.
    • These findings highlight the importance of seed quality and age in plant propagation and agricultural productivity.