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- Title
Effect of acetic acid on rice seeds coated with rice husk ash.
- Authors
Ciciliano Tavares, Lizandro; Brunes, André Pich; Robe da Fonseca, Daniel Andrei; Gadotti, Gizele Ingrid; Madruga de Tunes, Lilian; Meneghello, Géri Eduardo; Souza Albuquerque Barros, Antonio Carlos
- Abstract
Flooded rice cultivation promotes anaerobic conditions, favoring the formation of short chain organic acids such as acetic acid, which may be toxic to the crop. The objective of this study was to evaluate the effect of acetic acid on rice seeds coated with rice husk ash. The experiment was arranged in a 2 x 5 x 5 factorial randomized design, with two cultivars (IRGA 424 and BRS Querência), five doses of coating material (0, 2, 3,4 e 5 g kg-1 seed) and five concentrations of acetic acid (0, 3, 6, 9 and 12 mM), with 4 replications, totaling 50 treatments. The variables first count of germination, germination, shoot and root length, dry weight of shoots and roots were recorded. The results showed that coating rice seeds with rice husk ash up to 5 g kg-1 seed does not influence the performance of rice seeds of cultivars IRGA 424 and BRS Querência when exposed to concentrations of 12 mM acetic acid. The presence of acetic acid in the substrates used for seed germination reduced the vigor and viability of seeds of cultivars IRGA 424 and BRS Querência, as well as seedling development, affecting mainly the roots of BRS Querência.
- Subjects
PLANTING; RICE; ACETIC acid; RICE seeds; RICE hull ash; GERMINATION
- Publication
Revista Ceres, 2013, Vol 60, Issue 3, p437
- ISSN
0034-737X
- Publication type
Article
- DOI
10.1590/s0034-737x2013000300019