EXOGENOUS APPLICATION OF VITAMINS IN UPLAND RICE
2019
Vendruscolo, Eduardo Pradi | Rodrigues, Aliny Heloísa Alcântara | Oliveira, Paulo Ricardo | Leitão, Rodrigo Andrade | Campos, Luiz Fernandes Cardoso | Seleguini, Alexander | De Lima, Sebastião Ferreira
Vitamin application can optimize plant growth and grain yield of rice crop due to its beneficial effect on many plant physiological characteristics. The present study was conducted to evaluate the effects of niacin and thiamin applied as seed soaking or foliar spray on the morphological and productive characteristics of upland rice crop (Oryza sativa L., cv. Primavera), grown under greenhouse conditions. The experiment was arranged in a randomized block design in a 4 x 2 factorial scheme, with four replicates. The treatments consisted of the application of vitamins (control; 200 mg L-1 thiamin; 200 mg L-1 niacin; and 100 mg L-1 thiamin + 100 mg L-1 niacin) and two application methods (seed soaking and foliar spraying). Morphological and productive characteristics of the rice plants were evaluated. The exogenous application of thiamin and niacin, regardless of the application method, has a beneficial effect on the growth of upland rice plants, but does not increase the grain yield of the crop.
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