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- Title
DANO CELULAR E PIGMENTOS FOTOSSINTÉTICOS DO MARACUJAZEIRO-AZEDO EM FUNÇÃO DA NATUREZA CATIÔNICA DA ÁGUA.
- Authors
SOARES DE LIMA, GEOVANI; BELO DE SOUZA, WESLLEY BRUNO; DOS ANJOS SOARES, LAURIANE ALMEIDA; WESLEY ALVES PINHEIRO, FRANCISCO; RAJ GHEYI, HANS; NUNES OLIVEIRA, VALESKA KAROLINI
- Abstract
This study had the objective of evaluating the cellular damage and the levels of photosynthetic pigments of the sour passion fruit in function of the cationic nature of the irrigation water. The experiment was conducted under greenhouse conditions in Pombal -PB. The experimental design was randomized blocks, with treatments consisting of six cationic nature of water (S1 - Control; S2 - Na+; S3 - Ca2+; S4 - Na++ Ca2+; S5 - Mg2+ and S6 - Na++ Ca2++ Mg2+), distributed in a randomized block design with four replications, and each plot consisting of two plants. The plants of the control treatment (S1) were irrigated with water of electrical conductivity (ECw) of 0.3 dS m-1 while those of the other (S2; S3; S4; S5 and S6) were cultivated with ECw of 3.0 dS m-1. Irrigation with Na+ and Na++ Ca2+ water resulted in greater cellular damage in the leaf tissues. The synthesis of chlorophyll a was inhibited by salinity of Mg2+ and Na++ Ca2++ Mg2+. The salinity of the water negatively affected the chlorophyll b content of the sour passion fruit. The use of water with sodium composition induced an increase in the synthesis of carotenoids in sour passion fruit plants.
- Publication
Revista IRRIGA - Brazilian Journal of Irrigation & Drainage, 2020, Vol 25, Issue 4, p663
- ISSN
1413-7895
- Publication type
Article
- DOI
10.15809/irriga.2020v25n4p663-669