GROWTH OF JACKFRUIT SEEDLINGS IRRIGATED WITH SALINE WATERS

  • Hinkley Alcântara de Castro UFPB/DISCENTE
  • Walter Esfrain Pereira UFPB/DOCENTE
  • Francisco Thiago Coelho Bezerra UFPB/DOCENTE
  • Bruno de Oliveira Dias UFPB/DOCENTE
  • Lizandra de Oliveira Santos UFPB/DISCENTE
Palavras-chave: Artocarpus heterophyllus, electrical conductivity, salinity, chlorophyll fluorescence

Resumo

The jackfruit tree (Artocarpus heterophyllus) is a fruit plant adapted to the soil and climatic conditions of Brazil. In the Northeast, soil salinity can affect plants in various ways, mainly by reducing growth. Thus, the objective was to evaluate the effects of electrical conductivity of irrigation water (ECwi) on the growth, indices, and chlorophyll fluorescence of soft jackfruit seedlings. The treatments consisted of five ECw values (0.5, 1.5, 2.5, 3.5, 4.5 dS m-1). The experiment was conducted in a randomized block design with three replications. Leaf area, relative growth rate in height and diameter, dry matter masses, chlorophyll indices, and chlorophyll fluorescence were evaluated. Data were subjected to analysis of variance and regression. Increasing electrical conductivity between 0.55 to 1.13 dS m-1 increased chlorophyll indices, leaf area, and leaf dry matter mass, Fm, Fv/Fm, and Fv/Fo.

Publicado
2024-11-15
Seção
Ciências Agrárias