Abstract
Background: Water deficit and salinity are common conditions in arid agro-ecosystems.
Hypothesis: Salinty increases the hydric stress effect on the yield and gel quality of Aloe vera.
Study species and data description: In A. vera plants the variables meassured were: plant height, leaf length, width, and thickness, fresh biomass, the relative content of water, total solids, gel percentage, and harvest index.
Study site and dates: The study was conducted from spring to summer 2020 in Bermejillo, Durango, Mexico.
Methods: A split-block experimental design with four replications was used. The large plots were two soil moisture contents: field capacity (18.5 ± 2.5 %) and permanent wilting point (12.5 ± 2.5 %). The small plot was the salinity, with levels: 0, 20, 40, 60, and 80 mM of NaCl.
Results:Water deficit and salinity reduced the width and thickness of leaves and, consequently, the fresh biomass and gel percentage were reduced, but gel quality increased.
Conclusions: Water deficit and salinity, mainly the latter, reduced plant growth and leaves, and therefore, the yield of fresh biomass and gel. Although gel yield was reduced, its quality was enhanced, in terms of high total solids content.
Publisher
Botanical Sciences, Sociedad Botanica de Mexico, AC
Reference52 articles.
1. Ahanger MA, Tomar NS, Tittal SA, Argal S, Agarwal RM. 2017. Plant growth under water/salt stress: ROS production: antioxidant and significance of added potassium under such conditions. Physiology and Molecular Biology of Plants 23: 731-744. DOI: https://doi.org/10.1007/s12298-017-0462-7
2. Argentel L, González LM, Ávila C, Aguilera R. 2006. comportamiento del contenido relativo de agua y la concentración de pigmentos fotosintéticos de variedades de trigo cultivadas en condiciones de salinidad. Cultivos Tropicales 27: 49-53.
3. Asghari R, Ahmadvand R. 2018. Salinity stress and its impact on morpho physiological characteristics of Aloe vera. Pertanika Journal of Tropical Agricultural Science 41: 411-422.
4. Aziz EE, Al-Amier H, Craker LE. 2008. Influence of salt stress on growth and essential oil production in peppermint, pennyroyal, and apple mint. Journal of Herbs, Spices & Medicinal Plants 14: 77-87. DOI: https://doi.org/10.1080/10496470802341375
5. Azpilcueta-Pérez M, Pedroza-Sandoval A, Trejo-Calzada R, Sánchez-Cohen I, Jacobo-Salcedo MR. 2018. Chemical residuality in maize (Zea mays L.) fields irrigated with deep well water. Ecosystems and Agricultural Resources 5: 111-17. DOI: https://doi.org/10.19136/era.a5n13.1311
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