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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Viçosa
2010
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| Online Access: | https://www.redalyc.org/articulo.oa?id=48813671003 |
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Table of Contents:
- Micropropagation of Maclura tinctoria L.: an endangered woody species Guilherme Augusto Canella Gomes Renato Paiva Rairys Cravo Herrera Patrícia Duarte de Oliveira Paiva Agrociencias Maclura tinctoria Propagation and acclimatization Some native species produce seeds with low germination percentage and in most cases with dormancy, which makes the appearance of new individuals by sexual propagation difficult. The Maclura tinctoria has been considered an endangered species due to the indiscriminate use of its wood and low rate of seed germination. In this context, the objective of the present study was to establish an in vitropropagation methodology for this species. Combinations of NAA + BAP, different concentrations of GA3 and combinations IBA + activated charcoal were evaluated for shoot induction, shoot growth and root formation, respectively. The results indicated that the maximum shoot formation was obtained when 5.37 µM NAA + 4.45 µM BAP was used. The use of 5.48 µM GA3 promoted shoot growth. Root formation was observed on explants inoculated in WPM with a pH adjusted to 7.0 and supplemented with 23.62 µM IBA + 4.7 g L-1 activated charcoal. The use of a 70% light screen for 7 days followed by the use of 50 and 30% light screens also for 7 days each provided 97% plantlet survival. 2010 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48813671003 en http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.1 Vol.34