Tolerance of lowland rice (Oryza sativa) genotypes to heat stress at anthesis
DOI:
https://doi.org/10.52945/rac.v35i2.1354Palabras clave:
Oryza sativa, estresse por calor, esterilidade, produtividadeResumen
Global warming is occurring all over the world and climate changes are likely to affect agriculture by raising the frequency of weather events with very high and very low temperatures, which will increase the risks for food production. This study aimed to evaluate the effect of heat stress at anthesis on the agronomic performance of modern Brazilian lowland rice genotypes. The varieties SCS124 Sardo, SCS122 Miura, SCS121 CL, SCS116 Satoru, SCSBRS Tio Taka, Epagri 109 and the inbreeds SC 491 ME, SC 676, SC 792, SC 806, SC 817, SC 849 were tested. At anthesis, plants which received heat stress treatment were transferred to a growth chamber for four days at temperatures of 38ºC (day) and 30ºC (night). After that, they were returned to a greenhouse, remaining there until harvest, under temperatures of about 25ºC. Spikelet sterility ranged from 4.0 to 84.1%. Yield varied from 10.2 to 101.2g pl-1. Heat stress increased spikelet sterility and decreased grain production. The inbreeds SC 817 and SC 806 showed the lowest percentage of spikelet sterility and the highest yield under thermic stress and are thus promising genotypes to generate tolerant cultivars to high temperatures at anthesis.
Métricas
Citas
BUU, B.C.; CHAN, C.Y.; LANG, N.T. Molecular Breeding for Improving Heat Stress Tolerance in Rice: Recent Progress and Future Perspectives. In: HOSSAIN, M.A. et al. (Ed.). Molecular Breeding for rice abiotic stress tolerance and nutritional quality. Hoboken: Wiley Blackwell, 2021. p.92-119.
COUNCE, P.A., KEISLING, T.C., & MITCHELL, A.J. A uniform, objective, and adaptive system for expressing rice development. Crop Science, Madison, v.40, n.4, p.436-443, 2000.
CUADRA, S.V., STEINMETZ, S., HEINEMANN, A.B., ALMEIDA, I.R. Impacto das mudanças climáticas sobre o desenvolvimento a produtividade do arroz irrigado no estado do Rio Grande do Sul. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 19., 2015, Lavras. Anais[...] Lavras, 2015. p.377-386.
EBERHARDT, D.S. Altas temperaturas afetam produtividade e qualidade do arroz irrigado no estado. Agropecuária Catarinense, Florianópolis, v.23, n.2, p.12, 2010.
JAGADISH, S.V.K., MUTHURAJAN, R., OANE, R., WHEELER, T.R., HEVER, S., BENNETT, J., CRAUFURD, P.Q. Physiological and proteomic approaches to address heat tolerance during anthesis in rice (Oryza sativa L.). Journal of Experimental Botany, Oxford, v.61, n.1, p.143-156, 2010.
KHAN, S., ANWAR, S., ASHRAF, M.Y., KHALIQ, B., SUN, M., HUSSAIN, S., GAO, Z., NOOR, H., ALAM, S. Mechanisms and Adaptation Strategies to Improve Heat Tolerance in Rice. A Review. Plants, v.8, n.11, p.1-21, 2019. DOI: https://doi.org/10.3390/plants8110508.
MARSCHALEK, R., SOUZA, N.M., WICKERT, E., ANDRADE, A., TERRES, L.R., MASSIGNAM, A.M., RICCE, W.S., SANGOI, L. Produtividade de cultivares e linhagens de arroz irrigado em região de altitude, sujeita a baixas temperaturas, safras 2017/18 e 2018/19. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 11., 2019, Balneário Camboriú. Anais[…] Balneário Camboriú, 2019. p.129-132.
PRASAD, P.V.V., BHEEMANNAHALLI, R., JAGADISH, S.V.K. Field crops and the fear of heat stress – Opportunities, challenges and future directions. Field Crops Research, Netherlands, v.200, p.114-121, 2017.
SARSU, F., GHANIM, A.M.A., DAS, P., BAHUGUNA, R.N., KUSOLVA, P.M., ASHRAF, M., SINGLA-PAREEK, S.L., PAREEK, A., FORSTER, B.P., INGELBRECHT, I. Pre-field screening protocols for heat-tolerant mutants in rice. Switzerland: Springer, 2018. 51p.
SHINADA, H., IWATA, N., SATO, T., FUJINO, K. Genetical and morphological characterization of cold tolerance at fertilization stage in rice. Breeding Science, v.63, n.2, p.197-204, 2013. DOI: https://doi.org/10.1270/jsbbs.63.197.
SILVA F.A.S., AZEVEDO, C.A.V. The Assistat Software Version 7.7 and its use in the analysis of experimental data. African Journal of Agricultural Research, Nigeria, v.11, n.39, p.3733-3740, 2016.
SOSBAI. Arroz irrigado: Recomendações técnicas da pesquisa para o sul do Brasil. Cachoeirinha: Sosbai, 2018. 205p.
SOUZA, N.M. Estresse por altas temperaturas na antese em genótipos de arroz irrigado. 2020. 118f. Tese (Doutorado em Produção Vegetal). Centro de Ciências Agroveterinárias, Universidade do Estado de Santa Catarina, Lages, SC, 2020.
SOUZA, N.M., MARSCHALEK, R., SANGOI, L., WEBER, F.S. Spikelet sterility in rice genotypes affected by temperature at microsporogenesis. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v.21, n.12, p.817-821, 2017.
STÜRMER, F.W., MARSCHALEK, R., SANGOI, L., SOUZA, N.M. Esterilidade de espiguetas e produção de grãos de genótipos de arroz irrigado submetidos a baixas temperaturas na microsporogênese. Agropecuária Catarinense, Florianópolis, v.32, n.2, p.57-61, 2019.
XIONG, L. Abiotic Stress Resistance. In: ZHANG, Q; WING, R.A. (Ed.). Genetics and Genomics of Rice. New York: Springer,
p.205.
Descargas
Publicado
Cómo citar
Número
Sección
Licencia
Derechos de autor 2022 Natalia Maria de Souza, Luis Sangoi, Rubens Marschalek
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
