In vitro rooting improvement of globe artichoke (cv. Camus de Bretagne) by GA3
1997; Elsevier BV; Volume: 72; Issue: 1 Linguagem: Inglês
10.1016/s0304-4238(97)00112-x
ISSN1879-1018
AutoresJean-Michel Morzadec, Annick Hourmant,
Tópico(s)Cynara cardunculus studies
ResumoMicrorosettes of globe artichoke (Cynara scolymus L.) were subcultured in a medium with naphthalene acetic acid and kinetin. For rooting, shoots were placed on an auxinic rooting medium (2.68 μM naphthalene acetic acid) supplemented with or without gibberellic acid (GA3). Treatments with 2.9 and 14.4 μM GA3 resulted in 80.5 and 92.3% root formation, respectively, whereas 28.8 μM GA3 did not significantly change the rooting rate produced by auxin alone (50%). Moreover, the number of roots per shoot significantly increased for plants grown on rooting media containing 2.9 and 14.4 μM GA3. Stimulation by GA3 of rhizogenesis was accompanied with a large increase of leaf growth.
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