Abstract
AbstractThe effects of gibberellic acid (GA) and (2‐chloroethyl)trimethylammonium chloride (or Chlorocholine chloride, CCC), on growth of potatoes in pots were measured by growth analysis. GA was applied to the'seed piecesand CCC to the soil at emergence.GA accelerated emergence and stem growth but delayed leaf and tuber growth. CCC decreased growth of stems, leaves and stolons and caused tubers to form earlier. CCC did not modify the effects of GA. The initial effects of both regulators were reversed in the later stages of growth, so that yield and leaf area duration were unchanged.
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