La influencia del pH y de la salinidad en el crecimiento de Avicennia Germinans (L.) L. en cultivo hidropónico
Seedlings of Avicennia qerminans, collected at Turbo and Cartagena on the Caribbean Coast of Colombia were hydroponically grown during 28 weeks. The pH of nutrient solution containing 0.1 M NaCl ranged from 5.7 to 8.7. Additionally, one culture medium without NaCl (pH 7.7) and another containing 0.35 M NaCl (pH 8.2) were used. Biomass production depended both on salinity and pH. Highest values of dry matter were obtained for plants of both collection sites in weak basic nutrient solution containing O. 1 M NaCI. But different answers to pH conditions could be observed. Growth optimum of the plants from Cartagena occurred at pH 8, while those from Turbo remained already small at the same pH. They showed better growth in culture medium containing 0.35 M NaCl at pH 8.2 than at pH 8 and 0.1 M NaCl. Increasing salinity resulted in a higher percentage of root biomass. General differences were found between the material from the both sites. They were manifested by a higher productivity of the plants from Cartagena and by a lower number of pilose leaves on the plants from Turbo.
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| Format: | Digital revista |
| Language: | spa |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
1986
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| Online Access: | https://revistas.unal.edu.co/index.php/cal/article/view/35056 |
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