Salicylic Acid and Its Effect on Physiological and Photosynthetic Parameters in Soybean Seedlings Under Water Deficit

Dalcin, Joner S. and Nunes, Ubirajara R. and Roso, Rodrigo and Müller, Caren A. and Backes, Fernanda A. A. L. and Backes, Rogério L. and Mattioni, Nilson M. and Filho, Alberto Cargnelutti and Santos, Cassiano V. dos and Mendonça, Mariana B. F. de and Bastiani, Géssica G. de and Barbieri, Geovana F. and Stefanello, Raquel and Ludwig, Eduardo J. (2019) Salicylic Acid and Its Effect on Physiological and Photosynthetic Parameters in Soybean Seedlings Under Water Deficit. Journal of Agricultural Science, 11 (17). p. 280. ISSN 1916-9752

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Abstract

The objective of this study was to evaluate the photosynthetic and physiological parameters of soybean plants under water deficit after imbibition in different concentrations of salicylic acid during germination. The initial seed quality of the cultivar Bayer®/Tec Irga 6070 RR was evaluated. The soybean seeds were soaked in 25 ml in the salicylic acid solution (SA) for 24 hours and the retention capacities of 30, 50 and 70% were adopted. Under controlled conditions, concentrations of zero, 250, 500, 750 and 1000 µM, evaluating the variables length, fresh and dry mass of root and shoot. In the greenhouse, the concentrations of SA of zero, 500 and 1000 µM were used. After 29 days of the seedling, the stomatal conductance, length, fresh and dry mass of root and shoot were evaluated. The results showed that the uptake of SA in the germination aided seedlings under water deficit. The retention capacity of 30% simulated the water deficit, damaging the physiological parameters of soybean seedlings in both environments. The concentrations of 500 and 1000 µM of SA were efficient in the water deficit for the variables root length, fresh and dry shoot mass.

Item Type: Article
Subjects: Apsci Archives > Agricultural and Food Science
Depositing User: Unnamed user with email support@apsciarchives.com
Date Deposited: 15 May 2023 04:37
Last Modified: 27 Jan 2024 04:12
URI: http://eprints.go2submission.com/id/eprint/1006

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