Efeito atenuador do silício no desenvolvimento inicial de amendoim submetido ao estresse por alumínio e salinidade

• DOI: 10.4322/2359-6643.11203
• Publication Date: 2022-01-17T16:39:01Z
• Authors: Fernanda Miotti; Mirela Vantini Ch...; Mayara Cristina M...; Priscila Lupino G...; Gilmar da Silveir...
• Keywords: Completely randomized design; Distilled water; Arachis

Peanut (Arachis hypogea L.) is an oleaginous crop with great potential for human consumption, production of biofuels and forage, may expand to new cultivation areas that present limitations its growth, such as high concentration aluminum (Al) salinity. This work was carried out the objective verifying if silicon (Si) linked seed treatment attenuates effects salinity Al toxicity in initial development peanut plants. Two experiments were a completely randomized design, 3x2 factorial scheme, three concentrations Al3+ (0; 54 216 mg.L-1) or (0, 30 60 µM NaCl), absence presence calcium silicate (0.0 200 µM) treatment, seeds immersed 40 min 1.0 mmol.L-1 solution, four repetitions per treatment. While min. controls distilled water, replications After imbibition process, one sown pot (300 mL), which filled coconut powder substrate. Plants cultivated nutrient solution days containing appropriate treatments. At end this period, growth parameters verified through evaluations height, root length, number leaflets shoot dry mass. Young plants showed sensitivity toxicity, deleterious effect on evidenced by drop plant development, highlighting results roots leaves saline stress Thus, Si contributed attenuation stressors.