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Chapter 7 Plant development Q.1 a) Describe the properties and effects of the following endogenous plant growth regulators: i) gibberellin (see p. 109) ii) abscisic acid (see p. 110). b) Describe how synthetic plant growth regulators are used in a named horticultural situation (see pp. 112–117). Q.2 Describe the mechanism by which plants respond to gravity (see pp. 117–118). Q.3 Explain how a knowledge of the plant’s response to photoperiod is used to manipulate flowering in AYR Chrysanthemum production (see pp. 119–121).
