Biometric Study of Pitaya in Semi-Arid Regions: Impacts of Salinity and Solar Incidence

Document Type

Article

Journal/Book Title/Conference

Irriga

Volume

29

Publisher

Universidade Estadual Paulista "Julio de Mesquita Filho" * Faculdade de Ciencias Agronomicas de Botucatu

Publication Date

7-26-2024

First Page

1

Last Page

8

Abstract

Pitaya (Hylocereus spp.), a plant from the cacti family, is exotic and highly adaptable to semiarid regions. However, understanding the factors that can limit its development contributes to the development of cultivation techniques that provide greater productive returns. In this context, the objective was to analyze pitaya plants subjected to different levels of salt and shading biometrically. The experiment was conducted in a completely randomized experimental design with a 2x5 factorial scheme, with electrical conductivity of 0 addition of salt (T0), 2.5 dS m -1 (T1), 5 dS m -1 (T2), 7.5 dS m -1 (T3) and 10 dS m -1 (T4), in environments shaded with 50% (A1) and full sun (A2), with 4 replications, totaling 40 instalments. The variables analyzed were the number of cladodes (NC), sum of the cladode length (SCC), average cladode diameter (DMC) and rib diameter (DCOS). Compared with the full-sun environment, the shaded environment provided a greater number of cladodes at an electrical conductivity of 5 dS m -1. The rib diameter was greater in full sun than in those shaded to a salinity of 7.5 dS m -1, and the coefficient of variation was greater between the number of cladodes and the average cladode diameter than the other variables were. Keywords: Pitaya, salinity, semiarid, shading.

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