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Physiological response of cotton seeds treated with thiamethoxam under heat stress
- Source :
- Journal of Seed Science, Vol 38, Iss 2, Pp 140-147, Journal of Seed Science v.38 n.2 2016, Journal of Seed Science, Associação Brasileira de Tecnologia de Sementes (ABRATES), instacron:ABRATES
- Publisher :
- Associação Brasileira de Tecnologia de Sementes
-
Abstract
- This study aimed to verify the effect of seeds treated with thiamethoxam on the emergence, growth and chlorophyll content of seedlings of two cotton cultivars subjected to abiotic stress. The seeds used were from the DeltaOpal and NuOpal cultivars, each one represented by three lots, previously subjected to determination of moisture content, germination and vigor (low temperature germination). Then, the seeds from each lot, treated with thiamethoxam at a dose of 600 mL of product per 100 kg-1 seed or not, were exposed to temperature (18, 25 and 35 °C) and water availability (40, 60 and 80%) stress conditions. The emergence percentage, the root and shoot length, and the chlorophyll content were evaluated. The growth of cotton seedlings from the DeltaOpal and NuOpal cultivars, subjected to low temperature conditions and water availability of 40 to 60%, is favored by seed treatment with thiamethoxam. Seed treatment with thiamethoxam increases chlorophyll content during the development of cotton plants.
- Subjects :
- 0106 biological sciences
bioativador
Biology
lcsh:Plant culture
01 natural sciences
chemistry.chemical_compound
chlorophyll
lcsh:SB1-1110
Cultivar
Water content
040101 forestry
clorofila
Abiotic stress
estresse
04 agricultural and veterinary sciences
bioactivator
Agronomy
chemistry
Germination
Chlorophyll
Seed treatment
Shoot
stress
0401 agriculture, forestry, and fisheries
Gossypium hirsutum L
Thiamethoxam
Agronomy and Crop Science
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 23171545
- Volume :
- 38
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of Seed Science
- Accession number :
- edsair.doi.dedup.....c7ed5e9548e5834d63a480765389e8ee