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Performance of Rice Crop as Function of Seed Treatment and Irrigation Method

( Vol-6,Issue-2,February 2019 ) OPEN ACCESS
Author(s):

Germani Concenco, André Andres, José M. B. Parfitt, Fabio Schreiber, Mariane C. Coradini, Alexssandra D. S. de Campos, Camila S. Sinnemann

Keywords:

Oryza sativa, establishment, development, productivity.

Abstract:

we aimed with this study to evaluate the performance of irrigated rice plants, as a function of seed treatment composition and crop irrigation management. Two factors were studied in the trial: (A) irrigation management (continuous or intermittent); and (B) seed treatment composition (complete, fungicide only, insecticide only, no treatment + clomazone, and no treatment without herbicide). Standak and Vitavax-Thiram were used as insecticide and fungicide standards, respectively. The Guri Inta CL rice variety, treated three days before planting, was adopted. Irrigation was established twenty days after emergence. In continuous irrigation, a 7 cm mean water layer was maintained during the experimental period; in intermittent irrigation, a 10 cm initial water layer was established and then water supply was interrupted until 10-15% of the plot was aerated, when the 10 cm layer was reestablished. Twelve days after sowing, rice emergence was evaluated. Twenty days after crop emergence, the rice plant height was evaluated. Thirty days after emergence, plant density was again measured. At the end of the crop cycle, grain yield was evaluated. Data were analyzed based on confidence intervals at 95% level. There is no evidence of interference from the differential seed treatment on the agronomic performance of rice, nor differences resulting from their interaction with the irrigation management.

ijaers doi crossref DOI:

10.22161/ijaers.6.2.11

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