Abstract
Two studies were conducted to determine the effect of systemic pesticides on the potato tuber total glycoalkaloid (TGA) content at harvest. In a field study, a pretuberization application of three systemic insecticides (disulfoton, aldicarb, carbofuran) and three systemic fungicides (thiabendazole, benomyl, thiophanate methyl) on three potato cultivars (Cobbler, Katahdin and B5141-6) showed carbofuran to be the only treatment significantly different (P= .05) from the control. The tuber TGA content of the carbofuran treatment was lower than that of the control. In a greenhouse study, carbofuran applied during tuberization to three potato varieties (Norland, Kennebec, Abnaki) produced a highly significant increase (P= .01) in the tuber TGA content. A significant varietal difference (P=.01) in response to the carbofuran treatment was also evidenced.
Resumen
Dos estudios fueron Ilevados a cabo para determinar el efecto de pesticidas sistémicos sobre el contenido total de glicoalkaloides (GAT) a la cosecha. En un estudio de campo, una aplicación, previa a la tuberización, de tres insecticidas sistémicos (disulfoton, aldicarb, carbofuran) y tres fungicidas sistémicos (thiabendazole, benomyl, methil thiophanate) sobre tres cultivares de papa (Cobbler, Kathodin y B5141-6) indicaron que carbofuran resultó ser el único tratamiento significativamente diferente (P=0.05) al control. El contenido de GAT en los tubérculos provenientes del tratamiento con carbofuran fue inferior que el de control. En un estudio de campo, el carbofuran aplicado durante la tuberización a tres variedades de papa (Norland, Kennebec, Abnaki) produjo un incremento altamente significativo (P=0.01) en el contenido de GAT del tubérculo. Una diferencia varietal significativa (P=0.01) en respuesta al tratamiento de carbofuran se hizo igualmente evidente.
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Wilson, J.M., Frank, J.S. The effect of systemic pesticides on total glycoalkaloid content of potato tubers at harvest. Am. J. Pot Res 52, 179–184 (1975). https://doi.org/10.1007/BF02838109
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DOI: https://doi.org/10.1007/BF02838109