Tropical Plant Pathology (2008) 33, 162-166

Valacia L. da Silva Lobo (2008)
Efeito do tratamento químico de sementes de arroz no controle da brusone nas folhas e na qualidade sanitária e fisiológica das sementes
[Effects of chemical treatment of rice seeds on leaf blast control and physiological and sanitary quality of treated seeds]
Tropical Plant Pathology 33 (2), 162-166
Abstract: A field experiment was carried out in two successive years (2004 and 2005) in order to evaluate the effectiveness of the fungicides in rice seed treatment to control leaf blast. Another experiment was carried out in the laboratory to analyze the physiological and sanitary profile of treated seeds. The statistical analysis showed significant differences for the area under the disease progress curve (AUDPC). The pyroquilon and azoxystrobin treatments showed the least severity of leaf blast with the lowest AUDPC. Carboxim + thiram did not differ from the test to control leaf blast in the field, but this treatment increased seed germination (22%) compared with the other treatments and with the untreated control. In general, all treatments were efficient in reducing and/or eliminating fungi in seeds, with best results from carboxin + thiram and tricyclazole.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pyricularia oryzae	Rice (Oryza)	Brazil (south)