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HORT 301 Midterm 2 phytohormones (3)
From Homework
4
Biology
Undergraduate 4
11/17/2015

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Term
Abscisic Acid (ABA)
Definition
Is responsible for photoperiod-inducible bud dormancy; it is produced in mature leaves when short days are present and then translocated to shoot tips where it induces terminal bud set
Term
Auxin
Definition
Is responsible for apical dominance, in which the apical meristem produces auxin that then inhibits lateral bud break during the current growing season
Term
Ethylene
Definition
Is responsible for several processes in the development of fruit, including flower petal and style drop, and respiratory climacteric in which ripening fruits increase their respiration rate rapidly
Term
Gibberellin (GA)
Definition
Is responsible for aiding is breaking seed dormancy and works as the antagonistic phytohormone to ABA in seed development
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