SciELO - Scientific Electronic Library Online

vol.66 issue3Seasonal variation in the periphytic algal community structure onPanicum repens in a shallow reservoirThree new species of Anthurium, (Araceae), for Colombia, Tolima, Ibagué, Combeima Canyon author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links



Print version ISSN 0370-6583On-line version ISSN 2175-7860


SILVA, Maria Alice Costa da et al. Vermicompost humic acid stimulatesin vitro growth ofCattleya warneri (Orchidaceae) seedlings. Rodriguésia [online]. 2015, vol.66, n.3, pp.759-768. ISSN 0370-6583.

Cattleya warneri var. concolor(Orchidaceae) is an endangered epiphyte plant with ornamental economic potential. In this research, we have studied in vitro growth of C. warneri's seedlings at different doses of humic acids isolated from vermicompost. The evaluation on growth promoted by AH was performed using variables number of leaves and roots, fresh and dry weight of leaves and roots and estimates of the H+-ATPase enzyme activity. The results indicated that the humic material obtained was able to increase the growth of the studied plant and promoting stimuli associated with the said enzyme activity. It is thus established, an efficient biostimulant aimed at producing Cattleya warneri var. concolor seedlings.

Keywords : Plant growth; orchid; humic substances.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )