Data/hora: 14/06/2024 01:52:05

Biblioteca(s): | Embrapa Agroindústria Tropical.
Data corrente: | 21/01/2024
Data da última atualização: | 21/01/2024
Autoria: | AMORIM, F. F. V. R. de; NATALE, W.; TANIGUCHI, C. A. K.; SERRANO, L. A. L.; CORRÊA, M. C. de M.; ARTUR, A. G.
Afiliação: | FRANCISCA FRENNA VEREZZA RODRIGUES DE AMORIM, UNIVERSIDADE FEDERAL DO CEARÁ; WILLIAM NATALE, UNIVERSIDADE FEDERAL DO CEARÁ; CARLOS ALBERTO KENJI TANIGUCHI, CNPAT; LUIZ AUGUSTO LOPES SERRANO, CNPAT; MÁRCIO CLEBER DE MEDEIROS CORRÊA, UNIVERSIDADE FEDERAL DO CEARÁ; ADRIANA GUIRADO ARTUR, UNIVERSIDADE FEDERAL DO CEARÁ.
Título: | Iron doses on growth and gas exchange of dwarf cashew seedlings.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of Plant Nutrition, v. 46, n. 10, 2023.
ISSN: | 1532-4087
DOI: | https://doi.org/10.1080/01904167.2022.2155532
Idioma: | Inglês
Conteúdo: | Cashew plants have shown, a few days after planting in the field, interveinal chlorosis in young leaves and, as the symptoms become worse, the leaves are completely chlorotic, a nutritional disorder that is related to iron (Fe) deficiency. Thus, the objective was to evaluate the growth and physiological responses of grafted seedlings of dwarf cashew as a function of Fe doses. The experiment was conducted in a greenhouse, in a completely randomized design, with four replicates. Treatments consisted of five doses of Fe (0; 2.5; 5; 7.5 and 10 mg L−1), using iron sulfate (20% Fe) as source. The following parameters were evaluated: growth variables – height, number of leaves, leaf area, stem diameter and dry matter (roots, shoots and total); and physiological variables – photosynthesis (A), stomatal conductance (gs), transpiration (E), water use efficiency (WUE), instantaneous carboxylation efficiency (A/Ci), photosynthetic pigments and relative chlorophyll index. Fe deficiency affected the photosynthetic process, causing significant reductions in the evaluated characteristics, indicating the need for its adequate supply for the growth of dwarf cashew plants.
Thesagro: | Anacardium Occidentale; Clorose; Ferro; Nutriente Mineral.
Thesaurus Nal: | Chlorosis; Iron absorption; Photosynthesis; Plant micronutrients.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Agroindústria Tropical (CNPAT)
Exemplares: | CNPAT - (17190-1) - UPC - AP - DD -  -  -  - DIS