Growth and photosynthetic pigments of passion fruit (Passiflora edulis) seedlings under foliar fertilization with nitrogen and irrigated with saline water
Micaela Benigna Pereira,
Jackson Silva Nóbrega,
Reynaldo Teodoro de Fátima,
Jean Télvio Andrade Ferreira,
Francisco Romário Andrade Figueiredo,
Maria de Fátima de Queiroz Lopes,
João Everthon da Silva Ribeiro,
Walter Esfrain Pereira
Affiliations
Micaela Benigna Pereira
Universidade Federal da Paraíba, Department of Phytotechnics and Environmental Sciences, Areia-PB, Brazil
Jackson Silva Nóbrega
Universidade Federal da Paraíba, Department of Phytotechnics and Environmental Sciences, Areia-PB, Brazil
Reynaldo Teodoro de Fátima
Universidade Federal e Campina Grande, Department of Agricultural Engineering, Campina Grande-PB, Brazil
Jean Télvio Andrade Ferreira
Universidade Federal e Campina Grande, Department of Agricultural Engineering, Campina Grande-PB, Brazil
Francisco Romário Andrade Figueiredo
Universidade Federal Rural do Semi-Árido, Postgraduate Program in Phytotechnics, Mossoró-RN, Brasil
Maria de Fátima de Queiroz Lopes
Universidade Federal da Paraíba, Department of Phytotechnics and Environmental Sciences, Areia-PB, Brazil
João Everthon da Silva Ribeiro
Universidade Federal Rural do Semi-Árido, Postgraduate Program in Phytotechnics, Mossoró-RN, Brasil
Walter Esfrain Pereira
Universidade Federal da Paraíba, Department of Phytotechnics and Environmental Sciences, Areia-PB, Brazil
In the semiarid region of Brazil, salts found in water used in irrigation. The objective of was to analyze the influence of foliar fertilization with nitrogen as a mitigation of the salt stress of passion fruit seedlings. The design was randomized blocks, with the treatments generated from the Box’s Central Composite matrix, with five electrical conductivities of irrigation water (ECw) (0.50; 0.98; 2.15; 3.32; 3.80 dS m-1) and five doses of foliar nitrogen fertilization (0.0; 0.30; 1.15; 1.97; 2.30 g L-1), with four replicates. The growth and photosynthetic pigments were evaluated Application of nitrogen doses attenuated the effect of salinity on morphophysiological aspects of passion fruit seedlings. The increase in the salinity of the water caused negative effects on the characteristics the growth and photosynthetic pigments
