Substrates and plant growth regulator on the rooting of pitaya cuttings

The pitaya, a cactaceous species native to American tropical forests, produces well-appreciated and commercialized exotic fruits, mainly in the Asian continent. However, this plant species still requires technical information regarding cultivation in Brazilian agricultural areas, encouraging thus st...

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Bibliographic Details
Published in:Ciência agronômica 2010-10, Vol.41 (4), p.625
Main Authors: Santos, C.M.G, Cerqueira, R.C, Fernandes, L.M.S, Dourado, F.W.N, Ono, E.O
Format: Article
Language:Portuguese
Subjects:
CORTE
CULTURE MEDIA
CUTTING
DECOUPAGE
ESTACA
FRUITS TROPICAUX
FRUTAS TROPICALES
http://www.fao.org/aos/agrovoc#c_10204
http://www.fao.org/aos/agrovoc#c_2046
http://www.fao.org/aos/agrovoc#c_6651
http://www.fao.org/aos/agrovoc#c_7974
MEDIO DE CULTIVO
MILIEU DE CULTURE
PITAYA
RACINE
RAICES
RAIZ
ROOTS
SUBSTRATO DE CULTURA
TROPICAL FRUITS
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Summary:The pitaya, a cactaceous species native to American tropical forests, produces well-appreciated and commercialized exotic fruits, mainly in the Asian continent. However, this plant species still requires technical information regarding cultivation in Brazilian agricultural areas, encouraging thus studies in several knowledge areas. This work aimed to evaluate the effect of different substrates on the rooting of cladodes immersed or not in the plant growth regulator naphthaleneacetic acid (ANA), as well as on root formation and initial development of Hylocereus undatus cuttings, which provides more vigorous and higher-quality seedlings. The experiment was carried out in a lath house of the Department of Plant Production - Horticulture Sector, College of Agronomical Sciences, Botucatu Campus, São Paulo State University (UNESP). Experimental design was completely randomized, in a 4x2 (substrates x conditions) factorial arrangement, with four replicates. At 60 days after the experiment establishment, shoot fresh and dry matter, root fresh and dry matter, and the highest root length were evaluated. The initial root growth and development of seedlings were not influenced by ANA. Substrates containing sand were the most suitable to produce vigorous and high-quality seedlings. Sand+manure bovine mixture provided higher phytomass accumulation in the root system of pitaya (H. undatus).
ISSN:0045-6888
1806-6690