Phenotypic and molecular-genotypic correlation of diseases resistance in improved varieties potato (Solanum tuberosum L.)

In two consecutive agricultural campaigns (2010-2011 and 2011-2012), 18 improved potato varieties were planted in the PROINPA Foundation greenhouses as well as two witness varieties (Waych’a and Desirée) with the aim to study: i) late blight resistance (Phytophthora infestans), wart (Synchytrium endobioticum) an virus PVX and ii) validate molecular markers GP94, RB, CP60 and NL25 for co-localizing with major resistance genes of diseases mentioned. The results showed significant differences among varieties for AUDPCrel (late blight), severity (Wart) and severity and absorbance (PVX). Different levels of resistance were observed in varieties, such varieties with high resistance and moderate resistance. Molecular analysis were highly significant to Pr