Title:	Application stages and doses of tembotrione herbicide in grain sorghum (Sorghum bicolor) crop.
Authors:	SANTOS, W. F. SILVA, A. G. da PROCOPIO, S. de O. BRAZ, G. B. P. RODRIGUES, R. L. S. JAKELAITIS, A.
Affiliation:	WEVERTON FERREIRA SANTOS, INSTITUTO FEDERAL GOIANO; ALESSANDRO GUERRA DA SILVA, UNIVERSIDADE DE RIO VERDE; SERGIO DE OLIVEIRA PROCOPIO, CNPMA; GUILHERME BRAGA PEREIRA BRAZ, UNIVERSIDADE DE RIO VERDE; RAFAEL LOPES SANTOS RODRIGUES, UNIVERSIDADE DE RIO VERDE; ADRIANO JAKELAITIS, INSTITUTO FEDERAL GOIANO.
Date Issued:	2024
Citation:	Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo, v. 56, n. 1, p. 94-105, 2024.
Description:	Abstract: The herbicide tembotrione is effective against grassy weeds constituting an important tool in sorghum crops. However, in Brazil, this herbicide is only registered for corn. This study aimed to evaluate the selectiveness of tembotrione combined with atrazine at different doses and developmental stages of grain sorghum. Two experiments were conducted in Rio Verde and Montividiu, state of Goiás, Brazil, in 2018. A randomized block design with four replications, in a 3x2+1+1 factorial arrangement, tested three developmental stages (V3, V5 and V7), two doses of tembotrione (37.8 and 75.6 g ha-1) combined with the herbicide atrazine (1,000 g ha-1), an additional treatment only with atrazine at V3 and a control, free of herbicide. Evident phytotoxicity was observed with the combination of tembotrione and atrazine at V3 and V5 stages. Symptoms included reductions in plant height, sorghum stem diameter, panicle length, and cumulative dry mass of sorghum plant shoots. However, there was no influence on thousand grains mass, regardless of application stages. Tembotrione at 37.8 g ha-1 combined with atrazine at 1,000 g ha-1 was selective for grain sorghum when applied at V7, without affecting grain yield.
Thesagro:	Herbicida Sorgo Toxidez Erva Daninha Rendimento Sorghum Bicolor
NAL Thesaurus:	Tembotrione Sorghum (Poaceae) Crop yield atrazine weeds
Keywords:	Post-emergence Yield
ISSN:	1853-8665
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMA)