FITOMASSA E CRESCIMENTO DE MANJERICÃO ROXO IRRIGADO COM ÁGUA SALINA SOB ADUBAÇÃO FOLIAR NITROGENADA

• Autor(a) principal: Nóbrega, Jackson Silva
• Data de Publicação: 2023
• Outros Autores: Silva, Toshik Iarley da, Bezerra, Ana Carolina, da Silva Ribeiro, João Everthon, da Silva, Antônio Veimar, Silva, Edcarlos Camilo da, Moraes Costa, Raimundo Nonato, Lopes, Adriano Salviano, Dias, Thiago Jardelino
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Nativa (Sinop)
• Texto Completo: https://periodicoscientificos.ufmt.br/ojs/index.php/nativa/article/view/13310
• topic: estresse salino; Ocimum basilicum L.; nitrogênio

Basil is a species with high exploitation potential. However, its production in semiarid regions is compromised due to the salts contained in the soil and in the water used in irrigation, requiring the adoption of techniques that increase the tolerance of plants to salinity, such as nitrogen fertilization. Thus, this study aimed to evaluate the effect of leaf nitrogen fertilization on growth and phytomass allocation in purple basil plants under irrigation with saline water. The experiment was carried out in a randomized block design in an incomplete factorial scheme, with five levels of salinity (0.0; 0.81; 2.75; 4.69 and 5.50 dS m-1) and five levels of nitrogen (0.00; 58.58; 200.00; 341.42 and 400.00 mg L-1). Leaf succulence, sclerophilia index and shoot dry mass production, stem, leaf and root dry mass allocation, specific leaf area and leaf area ratio were evaluated. Foliar application of N attenuated the effects of salt stress on phytomass allocation, leaf succulence and shoot phytomass production index. N and salinity increased the specific leaf area and leaf area ratio in basil plants.