Saline stress in growth and initial development of vegetable species
2019
Oliveira, H. M. | Oliveira, J. L. S. | Silva, E.
portugais. Although salinity is a natural phenomenon, the increase in arable land with high salinity has increased, becoming a worldwide concern. This has affected the development of societies, which requires more food production to meet the needs of the population. In this context, saline stress has limited agricultural productivity. The salinity of the soil can be anthropogenic, through the accumulation of salts through the irrigation waters of crops. The objective of this work was to carry out a bibliographical research on the effects of saline stress on the initial growth and development of plant species. In order to do so, a bibliographical research of published scientific articles was carried out, so that a more insight is taken, in front of what has been published on this subject, for compilation and analysis of the reported data. It is reported in the literature that several species of plants have little tolerance to salt stress. In general, research has directed its experimental analyzes to the early stages of plant development (germination and initial seedling growth).Most studies published in the literature have reported that soils with salt concentrations between 30-50 dS m-1 and 30-90 mM NaCl have negatively affected the development of several plant species. Among the regions most affected by salinization is the semi-arid region, which presents high evapotranspiration and low annual precipitation, compromising the agricultural productivity of this region.
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