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Influence of water stress and exogenous glycinebetaine on sunflower achene weight and oil percentage

International Journal of Environmental Science and Technology, ISSN: 1735-2630, Vol: 2, Issue: 2, Page: 155-160
2005
  • 38
    Citations
  • 0
    Usage
  • 21
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    38
    • Citation Indexes
      38
  • Captures
    21

Article Description

The study was carried out to assess whether exogenously applied glycinebetaine has any role in reducing the adverse effects of water stress on sunflower achene yield and oil contents. Two sunflower lines, Gulshan-98 and Suncross were subjected to water stress at the vegetative and reproductive stages of plant growth. Three levels of glycinebetaine (0, 50 and 100 mM) were applied before sowing (seed treatment) and at the time of initiation of stress at the vegetative and reproductive stages. A marked adverse effect of water stress on 100-achene weight and achene oil contents were observed in both sunflower lines. Exogenous supply of glycinebetaine was not effective in alleviating the adverse effects of water stress on achene oil percentage. Foliar spray of glycinebetaine, however, significantly reduced the negative effects of water stress on achene weight. Seed treatment with either level of glycinebetaine was not effective in increasing the 100- achene weight and achene oil percentage under both normally irrigated and water stressed conditions. The sunflower line, Suncross produced higher oil yield than that of Gulshan-98. © Summer 2005.

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