In vitro meristem culture of juvenile and mature Sequoiadendron giganteum

Monteuuis Olivier. 1987. In vitro meristem culture of juvenile and mature Sequoiadendron giganteum. Tree Physiology, 3 (3) : 265-272.

Résumé : A total of 7000 meristems were used in experiments to investigate the possibility of cloning Sequoiadendron giganteum Buchholz by in vitro meristem culture of juvenile (2-year-old) and mature (100-year-old) ortets. Cultures were initiated on a low-salt medium containing 0.1 mg l−1 1-naphthaleneacetic acid to stimulate meristematic activity. Benzylamino purine (0.01–0.5 mg l−1) inhibited meristematic activity, whereas gibberellic acid (0.01–0.5 mg l−1) had no effect on meristematic development. The mature ortet showed more specific mineral requirements and a lower capacity for cloning than the juvenile ortet. Rooted plants were obtained only from the juvenile clone. There was a marked seasonal effect on meristematic activity, especially for the mature clone, the most active material being obtained during budbreak.

Classification Agris : F60 - Physiologie et biochimie végétale
F02 - Multiplication végétative des plantes
K01 - Foresterie - Considérations générales

Auteurs et affiliations

• Monteuuis Olivier, AFOCEL (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/584111/)

Métriques

[ Page générée et mise en cache le 2024-12-26 ]