Commercial use of plant hormones

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  • COMMERCIAL USE OF PLANT HORMONES
    • AUXIN
      • rooting powder for cuttings
        • to encourage root growth
      • Prevents leaf and fruit drop
      • Seedless fruits
        • promotes ovule growth in unpollinated flowers
      • Promotes flowering
      • Herbicide/ weedkiller
        • promotes excessive shoot growth so that the plant cannot support itself
    • ETHENE
      • speeds up fruit ripening
      • promotes fruit drop
      • reduces self-pollination by promoting female sex expression in cucumbers
        • increases yield
      • promoting lateral growth
    • GIBBERELLIN
      • Fruit production
        • delay senescence
        • elongate apples to improve shape
        • cause grape stalks to elongate so that they are less compact and bigger
      • Brewing
        • speeds up amylase production to breakdown starch to maltose
      • Sugar production
        • increases sugar yield by elongating internodes where sugar is stored
      • Plant breeding
        • induces seed formation
    • CYTOKININS
      • delay leaf senescence
        • reduce yellowing of lettuce
      • help mass produce plants

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