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Plant hormones shape the plant, affecting seed growth, time of flowering, the sex of flowers, ageing of leaves, and fruits. They affect which tissues grow upward and which grow downward, leaf formation and stem growth, fruit development and ripening, plant longevity, and even plant death. This set is designed to show how we have adapted to use these hormones for our own advantage: hence experiments on breaking dormancy in seeds, rooting cuttings, killing weeds, preventing leaves from dropping, etc. are included. Suitable for GCSE and A Level students. Contents: Culture Medium, Indol-3-acetic acid, Lanolin, Gibberellic acid, Sucrose, 0.1% and 0.01% IAA (Indol-3-acetic acid)in lanolin paste, Coumarin, N.A.A. (1 Naphthaleneacetic acid), Thiourea, 2,4-D (2,4-Dichlorophenoxyacetic acid), Ethrel (2-chloroethyl phosphonic acid), Tetrazolium chloride, Agar. Supplied with full teaching notes.
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