Fecha/hora: 09/06/2024 13:31:54

Biblioteca(s): 	INIA Treinta y Tres.	
Fecha corriente: 	06/05/2015	
Fecha de la última actualización: 	30/09/2019	
Autoria: 	SUDIANTO, E.; BENG-KAH, S.; TING-XIANG, N.; SALDAIN, N.; SCOTT, R.C.; BURGOS, N.R.	
Afiliación: 	NESTOR ELIO SALDAIN CROCCE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.	
Título: 	Clearfield rice: its develoment, success, and key clallenges on a global perspective.	
Año de publicación: 	2013	
Fuente/Imprenta: 	Crop Protection, v. 49, p. 40-51. 2013.	
ISSN: 	0261-2194	
DOI: 	10.1016/j.cropro.2013.02.013	
Idioma: 	Inglés	
Notas: 	Article history: received 4 August 2012; received in revised form 19 February 2013; accepted 20 February 2013.	
Contenido: 	Abstract:
Weedy rice (Oryza sativa) is a close relative of domesticated rice and a noxious weed prevalent in rice fields in world regions where rice is grown. Weedy rice management has remained challenging to farmers, mainly due to the weed’s physiological and morphological resemblance to rice cultivars. The introduction of Clearfield rice provides an alternative solution and an additional tool for integrated weed management. Clearfield rice-based programs result in the cleanest rice fields in the southern U.S.
However, persistent application of the imidazolinone herbicides (imazethapyr, imazamox, and imazapic) in Clearfield rice raises concerns about the possible evolution of resistance to ALS-inhibitor herbicides in weedy rice and the transfer of resistance trait. The risk of resistant weedy rice evolution is much higher in Asia, Latin America, and other tropical regions where there is no winterkill and rice is planted at least twice each year. Herbicide carryover to rotational crops is also a concern. We summarized the progress of commercialization of Clearfield rice in 15 countries across the continents of America, Asia and Europe. In some countries, imidazolinone-resistant weedy rice outcrosses have been found abundant, thereby negating the utility of Clearfield technology. The persistence of imidazolinone herbicide residues in the soil is a concern in regions where multiple crops are planted in a year, or the following year. These challenges should be anticipated by countries that are considering adopting Clearfield#1; rice technology. Issues associated with gene escape, resistance evolution in weedy rice, and herbicide carryover to rotational crops remain to be resolved. Research to achieve sustainable solutions for weedy rice management, must be continued and intense educational programs for growers must be sustained.	
Palabras-Clave: 	CLEARFIELD; CLEARFIELD RICE; GENE FLOW; HERBICIDE SOIL PERSISTENCE; IMIDAZOLINONE-RESISTANT RICE; WEEDY RICE.	
Thesagro: 	ARROZ; ARROZ IRRIGADO; IMIDAZOLINONAS; MALEZAS ACUATICAS; PERSISTENCIA DE LOS PLAGUICIDA; RESISTENCIA A LOS HERBICIDAS.	
Categoría del tema: 	F01 Cultivo	
Registro original: 	INIA Treinta y Tres (TT)	
Ejemplares: 	TT - (100778-1) - PXI - AP - DD - PP/CROP PROTECTION/2013/SALDAIN -  -  - DIS