Resposta fisiológica de sementes de chia (Salvia hispanica �? Lamiales: Lamiaceae) ao estresse salino

Biotemas

Marisa Aparecida Binotto Abbad²  Luiz Augusto Salles das Neves²  Bruna Boucinha Viana²  Raquel Stefanello¹ 

[1] Universidade Federal de Santa Maria, RS.;Universidade Federal de Santa Maria

关键词: Germinação;    Salinidade;    Vigor;   

DOI  :  

学科分类：生物科学（综合）

来源: Universidade Federal de Santa Catarina * Centro de Ciencias Biologicas

【 摘 要 】

http://dx.doi.org/10.5007/2175-7925.2015v28n4p35 The study of salinity tolerance provides valuable information about the propagation of species and can help in both characterizing cultures and in providing correct recommendations for cultivation. The objective of this work was to evaluate the physiological response of chia seeds to salt stress. Seeds were placed on paper in aqueous sodium chloride (NaCl) at osmotic potentials equivalent to zero, -0.05, -0.10, -0.15, -0.20, -0.25, and -0.30 MPa. The parameters evaluated were germination percentage, first count, and germination speed index. According to the results, germination and vigor of the chia seeds decrease as salt concentration increases. Therefore, it was concluded that chia seeds are moderately tolerant to salinity levels used in this work and can be intolerant at lower osmotic potentials and in the early stages of seedling development.

【 授权许可】

Unknown