EFFECT OF CHEMICAL CONTROL WITH FUNGICIDES ON RICE-STAINED GRAIN INCIDENCE.
- Facultad de CienciasAgropecuarias, Universidad Nacional de Itap?a, Encarnaci?n, Paraguay.
- Facultad de CienciasAgrarias, UNNE, Corrientes, Argentina.
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An experiment was carried out in the locality of San Juan Bautista, Department of Misiones, Paraguay, rice crop season 2014/2015, to determine the effect of foliar application of fungicide on rice stained grain incidence. The treatments consisted on application of a mixture of fungicides Azoxystrobin 20% + Difenoconazole 12,5% ( 400 cc/ha) mixed with 400 cc of oil Nimbus at different rice growth stages. The experimental design used was randomized complete blocks with four replicates. The results indicated that treatments with 3 applications at R2, R3, R4 and 5 applications at R1, R2, R3, R4 and R6 resulted in a lower average incidence of rice-stained grain, 7.0 % and 11% respectively. Applications in a single opportunity at stages R1, R2, R3 and R4 showed a range of incidence between 30.7% - 44.5%, being the lower average incidence in R4. These results indicate that fungicide applications from R4 have a tendency to decrease the incidence of rice stained grains. The control without chemical protection had the highest incidence (69.34%).
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[Bar?a, M, Quintana L, Guti?rrez S. and Ortiz A. (2017); EFFECT OF CHEMICAL CONTROL WITH FUNGICIDES ON RICE-STAINED GRAIN INCIDENCE. Int. J. of Adv. Res. 5 (Jul). 2533-2536] (ISSN 2320-5407). www.journalijar.com
Facultad de Ciencias Agropecuarias, Universidad Nacional de Itapúa, Encarnación, Paraguay.
