https://revistas.ucr.ac.cr/index.php/agromesoAgronomía Mesoamericana ISSN electrónico: 2215-3608

Toxicity of the nicosulfuron herbicide on rice (Oryza sativa L.).

Valentín A. Esqueda

Abstract


The toxic effects of the herbicide nicosulfuron to rice cv. Milagro Filipino Depurado were determined under greenhouse conditions. Nicosulfuron at 40 and 80 g/ha, the mixture of nicosulfuron + 2,4-D (40 + 480 g/ha) and a nonherbicide treatment were evaluated. Herbicide treatments were applied to plants 3, 10, 17 y 24 days after emergence (DAE). Toxicity was evaluated seven days after application (DAA) and plant height was measured at seven, 15 and 30 DAA; the plant’s dry matter was also quantified at 30 DAA. The highest toxicity was observed in plants treated at three and 10 DAE with nicosulfuron at 80 g/ha and the mixture of nicosulfuron + 2,4-D. The height of rice plants applied with any of the herbicide treatments was significantly lower than that of the non-treated plants at seven and 15 DAA. The nontreatedplants were still  significantly taller than the treated plants at 30 DAA, except forthose treated at three DAE with 40 g nicosulfuron or with the mixture nicosulfuron + 2,4-D, at 10 DAE. Plants applied with 40 g nicosulfuron at 10 DAE or later had dry matter productions statistically similar to that of non-treated plants, while plants treated with 80 g nicosulfuron produced the lowest dry matter.


References


ALMEYDA, L. I. H. 1990. Control químico de maleza en arroz de temporal en Campeche. In: Memorias del XI Congreso Nacional de la Ciencia de la Maleza. Irapuato, Gto. México. p. 38.

CAMACHO, R. F.; MOSHER,L.; MORISHITA,D.; DEVLIN, D. 1991. Rhizome johnsongrass (Sorghum halepense) control in corn (Zea mays) with primisulfuron and nicosulfuron. Weed Technol. 5:789-794.

DERNOEDEN, P. H.; FIDANZA,M. 1994. Fenoxaprop activity influenced by auxin-like herbicide application timing. HortSci.29:1518-1519.

ESQUEDA, E. V. A. 1990. La maleza y su control en arroz de temporal en México. Series Técnicas de ASOMECIMA 1 (1): 12-16.

ESQUEDA, E. V. A. 1998a. Comportamiento de la mezcla de clomazone + propanil + 2,4-D en el control de malezas en arroz (Oryza sativa L.) en postemergencia temprana. In: Memorias del XIX Congreso Nacional de la Ciencia de la Maleza. Mexicali, B. C. México. p. 86-92.

ESQUEDA, E. V. A. 1998b. Efecto de dosis y épocas de aplicación del herbicida fenoxaprop-etil en arroz (Oryza sativa L.) de temporal. In: Memorias del XIX Congreso Nacional de la Ciencia de la Maleza. Mexicali, B. C. México. p.. 81-85.

ESQUEDA, E. V. A ; ACOSTA,S. 1985. Daños y control de las malas hierbas en el cultivo de arroz de temporal en el centro del estado de Veracruz y norte de Oaxaca. México, D. F. SARH. INIA. Folleto de Investigación Núm. 65. 60 p.

GONZALEZ, J.; GARCIA,E.; PERDOMO,M. 1983. Important rice weeds in Latin America.. In: International Rice Research Institute and International Weed Science Society (eds.) Proceedings of the Conference on Weed Control in Rice. Los Baños, Laguna Philippines. pp. 119-132

RÍOS, T. A. 1990. Evaluación de dosis y épocas de aplicación de herbicidas postemergentes en arroz. In: Memorias del XI Congreso Nacional de la Ciencia de la Maleza. Irapuato, Gto. México. p. 39.

THOMSON, W. T. 1993. Agricultural Chemicals. Book II Herbicides. Fresno, Thomson Publications. 310 p.


Refbacks

  • There are currently no refbacks.




© 2017 Universidad de Costa Rica. Para ver más detalles sobre la distribución de los artículos en este sitio visite el aviso legal. Este sitio es desarrollado por UCRIndex y Open Journal Systems. ¿Desea cosechar nuestros metadatos? dirección OAI-PMH: https://revistas.ucr.ac.cr/index.php/index/oai