Rooting and survival of cork oak (Quercus suber L.) cuttings

conferenceObject

Ribeiro, M.M.A.
Raimundo, Joana
Amâncio, Sara

Associação Portuguesa de Horticultura (APH)

Ribeiro MMA, Raimundo J, Amâncio S (2018) Rooting and survival of cork oak cuttings. In: Melo PCT, Calado A (eds) I Congresso Luso-Brasileiro de Horticultura, Lisbon, March 2018 2018. Actas Portuguesas de Horticultura, nº 29. Associação Portuguesa de Horticultura (APH), Lisbon, pp 587-595

978-972-8936-28-0

Rooting and survival of cork oak (Quercus suber L.) cuttings

Bark removal, Blanching, IBA, NAA, Vegetative propagation

2018-05-23T16:29:26Z
2018-05-23T16:29:26Z
2018

The cork oak (Quercus suber L.) has remarkable ecological, social and economic value in the Mediterranean region. Due to the growing economic interest in cork, human intervention in the plant production and renewal of this species is crucial. Thus, the optimization of the propagation methodologies to produce selected and improved trees for high quality cork production is a key factor in the species improvement program. Rooting and survival of cuttings are greatly affected by several external and internal factors. To circumvent this problem, experiments were made using young seedlings as a source of cork oak cuttings for two consecutive years. We studied the influence of the application of synthetic auxins, indole-3-butyric acid (IBA) and α-naphthalene acetic acid (NAA), the IBA concentration and the basal bark removal in rooting and survival of cork oak cuttings. The IBA improved the rooting, the survival and the mean length of the longest root per rooted cutting, but not the mean number of primary roots produced. The basal bark removal associated with 0.5% of IBA gave the highest percent of rooting and plant survival (60% and 54%, respectively). The application of 0.1% of NAA, the origin of the cutting (whether basal or apical) had no significant influence on the rooting and survival. Thus, it is possible to draw the conclusion that wounding along with 0.5 % IBA produced the highest percentage of rooting and survival with cuttings planted in April, however complementary studies involving different physical and chemical conditions are required.
info:eu-repo/semantics/publishedVersion

openAccess

eng