Análisis de la calidad del polen en genotipos de papa Solanum tuberosum ssp. andigena y reacción a Phytophthora infestans en progenies
Pollen quality analysis in Solanum tuberosum ssp. andigena and reaction to Phytophthora infestans in progenies
Keywords:
fertilidad, polen, cruzamientos, resistencia varietal (es)fertility, pollen, crossing, varietal resistance (en)
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methods were used. Grains completely stained which showed a pollinic tube extension were considered as fertile grains. A count on the number of feasible grains was made for both methods, establishing in this way the percentage ofpollen viability. In order to evaluate late blight resistance, crossing ofvarieties was carried out, noticing fruit formation. New plants were obtained from seed of these crossings, which were inoculated with Phytophthora infestans and classified as tolerant, half tolerant and susceptible plants. Final results showed the utility of new plants as new varieties, because they seem to be better than Monserrate which have horizontal resistance.
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