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  • Stimulate stem elongation by stimulating cell division and elongation.
  • Stimulates bolting/flowering in response to long days.
  • Breaks seed dormancy in some plants which require stratification or light to induce germination.
  • Stimulates enzyme production (a-amylase) in germinating cereal grains for mobilization of seed reserves.
  • Induces maleness in dioecious flowers (sex expression).
  • Can cause parthenocarpic (seedless) fruit development.
  • Can delay senescence in leaves and citrus fruits.
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Q: Identify the two functions of gibberellins?
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What is the functiOns of gibberellins?

Growth Promoters with the plants Hormones (regulators)


What are the two types of plant hormones?

Auxins, cytokinins and gibberellins


How is auxin different from gibberellins and ethylene in terms of function?

Auxin is involved in cell growth and elongation, while gibberellins are involved in stem elongation, seed germination, and flowering. Ethylene regulates fruit ripening, leaf abscission, and senescence in plants. Each of these plant hormones has distinct functions in growth and development.


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Why do farmers hormones auxins and gibberellins in plant?

preventing from scencences


What is the difference between abscisic acid and gibberellins?

Gibberellins are chemical substances that were isolated first from a fungus. Abscisic acid is the substace that keeps seeds from sprouting and buds from developing during the winter.


A plant that produces too little of the gibberellins might?

A plant that produces too little gibberellins may exhibit stunted growth, reduced stem elongation, and delayed flowering. Gibberellins are important plant hormones that regulate various developmental processes such as germination, stem growth, and flowering.


Where are gibberellins made?

Gibberellins are primarily synthesized in the shoot tips of plants, particularly in the young leaves and developing seeds. Once produced, gibberellins are then transported to various parts of the plant to regulate growth and development processes.


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What might a florist spray his plants with to encourage buds to open?

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What are some commercial uses of gibberellins?

Gibberellins are used in agriculture to promote plant growth, increase fruit size, and induce seedless fruit formation in crops such as grapes and citrus fruits. They are also used in the production of malting barley to promote uniform germination. Additionally, gibberellins are used in the floral industry to induce flowering in certain plants out of their normal blooming season.