RESPONSE OF <em>Chamaedorea elegans</em> Mart. TO PREGERMINATION TREATMENTS

In Mexico, overexploitation and disturbance of the natural habitat of parlor palm (Chamaedorea elegans Mart.) imply a high risk of extinction for this species. This collection resource confronts serious problems in its sexual propagation because of its seed persistent dormancy, making it necessary to generate knowledge to warrant conservation and sustainable production of parlor palm. In the present study we evaluated the effects of different treatments for increasing physiological seed quality and accelerate germination, which included different concentration and immersion periods in hydrogen peroxide solutions (H2O2), different concentrations of giberellic acid (GA3); mechanical scarification and two temperature levels (25 and 30 °C) during germination. Results indicated that seed immersion in solutions of GA3 at 2,000 mg·liter-1 for 24 h, en previously scarified seed, increased viability and germination from 3 to 25 and from 4 to 7 % respectively. When environment temperature was 30 °C and the seed was previously immersed in H2O2 and GA3 solutions, viability and germination reached values of 26 to 31 and 15 to 16 %, respectively.

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Electronic ISSN: 2007-4018
Print ISSN: 2007-3828

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