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Control and weed interference coexisting with pre sprouted seedlings (MPB) of different varieties of sugarcane

Grant number: 16/05690-3
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2016
Effective date (End): July 31, 2017
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal Investigator:Patrícia Andrea Monquero
Grantee:Rafael Pires da Silva
Host Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil


The objective of this research is to analyze the control and weed interference in the culture of sugarcane in method of planting pre-sprouted seedlings (MPB), even unexplored system. In the first experiment conducted in a greenhouse, the experimental design for each variety of sugarcane (RB 86 7515; RB 96 6928 and RB 97 5201) will be randomized in a factorial 3 x 6, and analyzed the interference Cynodon dactylon, Chloris polydactyla and Merremia aeygtia coexisting with sugar cane plants at densities (0, 1, 2, 4, 6 and 8) plants / pot. In the second experiment, the weed control and the effect of herbicides on pre sprouted seedlings of sugar cane will be checked by an experiment with a completely randomized design with four replications. They will be applied 10 treatments (saflufenacil; Safrufenacil + Clomazone; saflufenacil + metribuzim; saflufenacil + Imazapic; Clomazone; metribuzim; Imazapic; Indaziflan; Indaziflan + metribuzim and indaziflan + Imazapic) plus the control without herbicide application. The treatments will be applied one day after sowing weeds Cynodon dactylon, aeygtia Chloris polydactyla and Merremia and 10 days after planting of sugarcane seedlings. The crop and weed species will be conducted in separate vessels. The weed interference on the culture of sugarcane will be evaluated according to the results of height, leaf area and shoot dry biomass of all plants in gathering held after flowering of weeds. Regarding the second experiment, evaluations of control and phytotoxicity culture will be held on 15, 30 and 60 days after application (DAA). (AU)

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