Effect of different substrates on adaptation of arrow cane (Gynerium sagitatum Aubl.) micropropagated plants

Autor: Isidro E. Suarez, José E. Yépez, Claudia M. López
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2020
Předmět:
Zdroj: Temas Agrarios, Vol 25, Iss 1, Pp 77-84 (2020)
Druh dokumentu: article
ISSN: 2389-9182
DOI: 10.21897/rta.v25i1.2210
Popis: To reduce costs associated to ex vitro adaptation of arrow cane (Gynerium sagitatum Aubl.) plants Cv “Criolla”, the effect of three substrate mixes (Peat, peat + river sand and peat + rice husk) on survival, plant height and substrate associated plant cost were evaluated. Plants were micropropagated in semisolid MS medium supplied with 0,5 mg L-1 BAP. After medium removal, plants were transferred on 72-plug plastic trays filled with the respective substrate treatment. Trays were covered with translucent plastic covers during three days. Thereafter, plants were maintained in a 50% light shade house, fog irrigated twice a day for 1 minute each during 8 weeks. Treatments were distributed with a block randomized design. Data were analyzed with ANOVA and means were separated with Tukey´s mean separation test. Results allowed to evidence that peat + sand resulted in significant increase in survival, plant height and >35 decrease in substrate associated plant cost during adaptation to ex vitro conditions.
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