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- Title
Análise da germinação de cultivares de arroz submetidas a estresse por ácido acético.
- Authors
Kopp, Mauricio Marini; da Luz, Viviane Kopp; da Maia, Luciano Carlos; de Sousa, Rogério Oliveira; de Carvalho, Fernando Irajá Félix; de Oliveira, Antonio Costa
- Abstract
The objective of this research was to evaluate the germination of 12 rice genotypes under acetic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. The tests were conducted with the first count of germination (PCG) and germination (G) of the genotypes subjected to 0mM, 4mM, 8mM and 12mM acetic acid concentrations. The seed of each genotype was placed in germitest paper that was embedded with treatment solutions and packaged in individual bags. The germination was performed at 25°C and the counts were carried out at 7 (PCG) and 14 days (G). A factorial random block design was performed with four replications of 50 seeds per genotype. The regressions set for the variables showed three genotypes with germination stability under acetic acid stress.
- Subjects
AGRICULTURAL research; RICE; GERMINATION; PHYTOTOXICITY; GENOTYPE-environment interaction; CULTIVARS; ACETIC acid; PHYSIOLOGY
- Publication
Ciência Rural, 2008, Vol 38, Issue 9, p2599
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/S0103-84782008005000029