plant hormone plant Nutrition final

Ezekiel Emano · 47問 · 1年前

通報

問題一覧

A naturally-occurring compound which regulates change in physiology, growth or development of the plant.

plant hormone

5 Types of Plant Hormones

1. Auxin II. Cytokinin III. Gibberellin IV. Abscisic Acid V. Ethylene

Role of Hormone Cell elongation (increase cell size) Site of Production Shoot Tips Effect of Hormone Growth of plant in response to the environment, production of roots.

auxin

-How a plant grows in response to the environment

Tropisms

Role of Hormone Cell division (increase number of cells) Site of Production Root Tips Effect of Hormone Mitosis of new cells; Stimulates seed germination and new shoot growth

cytokinin

stimulates the production of roots.

AUXIN

stimulates the production of shoots

CYTOKININ

Role of Hormone Internode Elongation (height) Site of Production Root and Shoot Tips Effect of Hormone Controls yearly cycles (flowering/bolting, seeding and dormancy exiting) Rapid growth of stems and seeds.

Gibberellin

Role of Hormone Dormancy Site of Production Chloroplasts Effect of Hormone Enters dormancy: (leaves drop off trees, seeds fall, the stomata close to reduce water loss during drought stress)

Abscisic Acid

Role of Hormone Ripening and Death Site of Production Ripening fruits, aging flowers, germinating seeds and wounded tissues Effect of Hormone Stimulates fruits to ripen, flowers to enter senescence (to grow old and

Ethylene

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