Match auxins, gibberellins and cytokinins to their discovery, roles and farm uses, tell epigeal from hypogeal germination with examples, and name the causes of seed dormancy and the ways to break it.
Unit 7 carries 6 of the 40 botany marks; with four chapters sharing them, this one averages one and a half (MEC publishes weights by unit, not by chapter). The MEC scope line: Physiological roles and applications of auxins, gibberellins and cytokinins; Seed germination and its types; Seed dormancy. Three ways it is asked:
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