Stefanello R, Viana B B, Goergen P C H, Neves L A S, Nunes U R
Departamento de Biologia, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria - UFSM, Avenida Roraima, 1000, CEP , Santa Maria, RS, Brasil.
Centro de Ciências Rurais, Universidade Federal de Santa Maria - UFSM, Avenida Roraima, 1000, CEP , Santa Maria, RS, Brasil.
Braz J Biol. 2020 Apr-Jun;80(2):285-289. doi: 10.1590/1519-6984.192140.
Salinity, of both soil and water, is one of the main causes of crop yield decline. Within this context, the objective of this study was to evaluate the influence of different salts on the germination of chia seeds. The experiment was conducted in a BOD chamber at a constant temperature of 20 °C and in the presence of light. The seeds were placed on paper soaked with aqueous solutions of calcium chloride (CaCl2), sodium chloride (NaCl), potassium chloride (KCl), and magnesium chloride (MgCl2), at the osmotic potentials zero, -0.10, -0.20, -0.30, and -0.40 MPa. The effect of the salinity was evaluated using a germination test, with counts on days 7 and 14 after sowing. Based on the results, chia seeds tolerate concentrations of NaCl to -0.4 MPa and KCl to -0.20 MPa. The salts CaCl2 and MgCl2 had a negative effect on the germination and vigor of the chia seeds for the osmotic potentials -0.30 MPa and -0.20 MPa, respectively.
土壤和水体的盐分都是作物产量下降的主要原因之一。在此背景下，本研究的目的是评估不同盐分对奇亚籽发芽的影响。实验在恒温20°C且有光照的生化培养箱中进行。将种子置于用氯化钙（CaCl2）、氯化钠（NaCl）、氯化钾（KCl）和氯化镁（MgCl2）水溶液浸湿的滤纸上，渗透压分别为零、-0.10、-0.20、-0.30和-0.40兆帕。通过发芽试验评估盐分的影响，在播种后第7天和第14天进行计数。根据结果，奇亚籽能够耐受-0.4兆帕的NaCl浓度和-0.20兆帕的KCl浓度。对于渗透压分别为-0.30兆帕和-0.20兆帕的情况，CaCl2和MgCl2盐分别对奇亚籽的发芽和活力产生负面影响。
