PreprintArticleVersion 2Preserved in Portico This version is not peer-reviewed
Influence of Vermicompost on the Concentration of Exogenous Indole-3-Acetic Acid and Its Effect on the Development of Tomato Plants (Lycopersicum esculentum L.)
Version 1
: Received: 22 May 2024 / Approved: 22 May 2024 / Online: 23 May 2024 (09:47:34 CEST)
Version 2
: Received: 3 June 2024 / Approved: 3 June 2024 / Online: 4 June 2024 (14:53:09 CEST)
Segura-Castruita, M.Á.; Valdivia-Dávila, M.Á.; Yescas-Coronado, P.; Gómez-Leyva, J.F.; Cueto-Medina, S. Influence of Vermicompost on the Concentration of Exogenous Indole-3-Acetic Acid and Its Effect on the Development of Tomato Plants (Lycopersicum esculentum L.). Agronomy2024, 14, 1311.
Segura-Castruita, M.Á.; Valdivia-Dávila, M.Á.; Yescas-Coronado, P.; Gómez-Leyva, J.F.; Cueto-Medina, S. Influence of Vermicompost on the Concentration of Exogenous Indole-3-Acetic Acid and Its Effect on the Development of Tomato Plants (Lycopersicum esculentum L.). Agronomy 2024, 14, 1311.
Segura-Castruita, M.Á.; Valdivia-Dávila, M.Á.; Yescas-Coronado, P.; Gómez-Leyva, J.F.; Cueto-Medina, S. Influence of Vermicompost on the Concentration of Exogenous Indole-3-Acetic Acid and Its Effect on the Development of Tomato Plants (Lycopersicum esculentum L.). Agronomy2024, 14, 1311.
Segura-Castruita, M.Á.; Valdivia-Dávila, M.Á.; Yescas-Coronado, P.; Gómez-Leyva, J.F.; Cueto-Medina, S. Influence of Vermicompost on the Concentration of Exogenous Indole-3-Acetic Acid and Its Effect on the Development of Tomato Plants (Lycopersicum esculentum L.). Agronomy 2024, 14, 1311.
Abstract
The presence of exogenous auxins such as indole-3-acetic acid (IAA), has been reported in organic materials such as vermicompost. The objectives of this work were to quantify the concentration of IAA in sand-based substrates with vermicompost (S-VC), to establish the relationship between the concentration of exogenous IAA and the amount of vermicompost (VC), as well as determine its influence on the development of tomato plants. S-VC substrates with different percentages based on volume (0, 20, 40 and 50% VC) placed in pots were used to transplant tomato seedlings. In each substrate, the concentration of IAA was determined at the beginning and at the end of a culture cycle, as well as the bacterial load. In addition, some performance components were measured in the plants. The results show that by increasing 1 kg of VC in a sand-based substrate, the concentration of exogenous IAA increases both at the beginning and at the end of the experiment (0.0470 and 0.0642 mg g-1, respectively); a result that, in turn, was related to the colony-forming units of gram-positive bacteria (Bacillus spp., mainly). Behavior that is reflected in tomato plants; for example, the root had its maximum development (371.33 cm-3) when the amount of VC in the substrate was 4.12 kg.
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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