Effect of growth regulators and spacing on multiplication of planting units in cardamom (Elettaria cardamomum Maton)

Shanthaveerabhadraiah, S.M.; Chandrappa, H.M.; Thimmarayappa, M.

Journal of Spices and Aromatic Crops 6(1): 49-50


Accession: 002813477

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Propagation by suckers is the preferred method for cardamom. In a study at Mudigere, Karnataka, India, during 1993-95, cardamoms (Mudigere-1) were planted at 3 spacings (0.9 x 0.9, 0.9 x 0.6 and 0.9 x 0.3 m) under artificial shade, and Ethrel at 2000 ppm were applied at the onset of the monsoon with a second spray 3 months later. The number of planting units (1 big sucker with 2 small suckers) was recorded after 10 months in each of the 2 study years. The growth regulators had no effect on sucker production, whereas close spacing (0.9 x 0.3 m) resulted in significantly higher number of planting units: 83 000/ha, compared with 70 000 and 51 000/ha for the 0.9 x 0.6 and 0.9 x 0.9 m spacings, respectively.