1. Significant difference was observed on the pollen quality of the following 6 potato varieties:
Centinela 1239, and
grown in 5 different localities:
2. This difference on the pollen quality was not due to temperature (mean, extremen maximum, mean maximun, mean minimum or extremen minimun) or to precipitation.
Nevertheless, a significant correlation was found between "pollen quality" and "relative humidity" of the locality on the flowering period.
These date show that "Centinela" is a desirable locality for potato breeding.