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- Title
Physiological indices and phytomass partition in precocious dwarf cashew clones irrigated with saline waters.
- Authors
Soares de Lima, Geovani; Batista da Silva, Jailson; dos Anjos Soares, Lauriane Almeida; Raj Gheyi, Hans; Gomes Nobre, Reginaldo; de Pádua Souza, Leandro
- Abstract
This research aimed to evaluate the physiological indices and the accumulation of phytomass in clones of precocious dwarf cashew under salt stress during rootstock formation. The experiment was conducted in greenhouse in the municipality of Pombal-PB. The experimental design was in randomized blocks, and the treatments were organized in a 5 x 3 factorial arrangement, constituting the levels of electrical conductivity of the irrigation water - ECw (0.4 -Control; 1.2; 2.0; 2.8, and 3.6 dS m-1) and the clones of precocious dwarf cashew (Faga 11, Embrapa 51, CCP 76), with three replications and two plants per plot. Water salinity higher than 0.4 dS m-1 resulted in a decrease of the relative growth in plant height, leaf area, and phytomass accumulation in the cashew plant. The cashew clones are sensitive to water salinity from 0.4 dS m-1. Among the physiological indicators, the leaf area ratio, the sclerophylly index, and the root/shoot ratio of the precocious dwarf cashew are highlighted as salt stress indicators. The use of water with 0.4 dS m-1 of electrical conductivity is recommended for the formation of cashew rootstocks.
- Subjects
CASHEW nuts; SALINE waters; CASHEW tree; BIOACCUMULATION; LEAF area
- Publication
Comunicata Scientiae, 2020, Vol 11, p1
- ISSN
2176-9079
- Publication type
Article
- DOI
10.14295/cs.v11i0.3196