Podocarpo, a plant of ornamental interest: asexual propagation

Fernanda Jaqueline Menegusso,Fabíola Villa,Maria Cristina Copello Rotili,Tatiane Eberling,Daniel Fernandes Da Silva,Giovana Ritter

doi:10.1590/0034-737x202168060005

Fernanda Jaqueline Menegusso, Fabíola Villa + Show 4 more

Open Access

https://doi.org/10.1590/0034-737x202168060005

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Abstract

The objective of this study was to evaluate the potential of rooting of podocarpos cuttings in function of the number of leaves, concentrations of IBA and phytorregulators, application methods and cutting season. Two experiments were carried out under weaning conditions, in a factorial scheme containing 3 replicates of 15 cuttings, the first with 4 concentrations of IBA, 3 leaves at the cuttings and 2 seasons. These were removed in August/2016 and January/2017, prepared with 10 cm in length and immersed in solutions for 10 s. In the second experiment three types of phytoregulators and 2 application forms were tested (slow and quick immersion). Cuttings were prepared in the same manner as in the first experiment, maintaining 4 leaves. The bases of the cuttings were immersed for 10 s and 24 h in the solutions, then taken to root. After 100 days of experimentation, it was concluded that cuttings collected in the summer had a higher percentage of rooting, 4 leaves and IBA concentration should be maintained between 750 and 800 mg L-1. The best form of application of phytoregulator is by rapid immersion.

Highlights

The podocarp is classified as a gymnosperm, belonging to the family Podocarpaceae and to the genus Podocarpus L’Hér. ex
In view of the above, the objective of this work was to evaluate the potential of rooting of podocarp cuttings in function of the number of leaves, Indolbutyric acid (IBA) concentration, cutting time and the rooting potential of the cuttings using phytorregulators in 2 application methods
The results found in this work corroborate Bischoff et al (2017), who verified that the rooting of cuttings of whiting is independent of the number of leaves present

Summary

Introduction

The podocarp is classified as a gymnosperm, belonging to the family Podocarpaceae and to the genus Podocarpus L’Hér. ex. The podocarp is classified as a gymnosperm, belonging to the family Podocarpaceae and to the genus Podocarpus L’Hér. Pers., being its species Podocarpus macrophyllus (Thunb.) Sweet (synonym Taxus macrophylla Thunb.) with center of origin in China and Japan (Lorenzi & Souza, 2013). The genus is widespread in these countries, as well as in parts of Southeast Asia, being used in Japan as a bonsai and cultivated as a hedge (Farjon, 2010). Is popularly known as buddha pine and is widely used as an ornamental plant, characterizing a columnar shape little tree (Mondin et al, 2010). Subtropical frost tolerant plant and containment prunings for topiary purposes, its cultivation can be done directly on the soil, preferably fertile and humid, with good drainage, growing well in full sun or partial shade. An alternative to the sexual multiplication is cutting (Farjon, 2010)

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