La semilla completa superó a la cortada con respecto a la emergencia, el vigor y la desintegración de las semillas por Fusarium, el rendimiento de tubérculos grandes y el rendimiento total.
Aquí presentamos los resultados de los experimentos de campo realizados en el condado de Bingham, Idaho, durante diez años consecutivos (2008–2017) utilizando el cultivar de papa ‘Russet Burbank’ donde tanto las semillas cortadas como las completas se inocularon primero con aislados de Fusarium spp., y posteriormente tratadas con fungicidas para semilla con fludioxonil y mancozeb. Aunque se ha demostrado que las papas de siembra que han sido cortadas y tratadas con fungicidas funcionan tan bien o mejor que las semillas de unidad completa (tubérculos enteros en el rango de 43–85 g) sin tratamiento de fungicidas, no se hicieron comparaciones con semillas de unidad completa que habían sido tratadas con un fungicida para semilla. Las papas de siembra en América del Norte se cortan predominantemente y se tratan con un fungicida de papa-semilla antes de plantarlas. Thus, the most important factor to consider, regardless of seed type, is use of a fungicide seed treatment. 1 grade tubers for single drop seed (1.09 t/ha) was smaller than the increase due to an application of a commercial formulation of a mancozeb plus fludioxonil fungicide seed potato treatment (2.34 t/ha). However, the fungicide seed treatment offered a larger measure of improvement in terms of Fusarium seed decay and Rhizoctonia stem canker. Single-drop seed outperformed cut seed with respect to emergence, vigor, and Fusarium seed decay, yield of large tubers, and total yield. and then treated with a fungicide seed treatment containing both fludioxonil and mancozeb.
Here we present results from field experiments conducted in Bingham County, Idaho over ten consecutive years (2008–2017) using potato cultivar ‘Russet Burbank’ where both cut and single drop seed were first inoculated with isolates of Fusarium spp.
Though seed potatoes that have been cut and fungicide-treated have been shown to perform as well or better than single drop seed (whole tubers in the range of 43–85 g) without fungicide seed treatment, no comparisons were made with single-drop seed that had been treated with a fungicide seed treatment. Seed potatoes in North America are predominantly cut and treated with a fungicide seed potato treatment before planting.
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