Characterization of Greek groundnut (Arachis hypogaea L.) germplasm and evaluation for tolerance to waterlogging.

摘要

Forty-three cultivars belonging to the Greek collection of groundnuts were characterized and evaluated for resistance to waterlogging and other agronomic traits during 1986-90. Seventeen morphological and physiological traits included in the descriptor lists of IBPGR and ICRISAT were used. Principal component analysis (PCA) identified 5 factors representing 77.3% of the total variation; PC1 to PC5 accounted for 35.6, 14.2, 13, 8.4 and 6.1% of the total variance, respectively. Cluster analysis classified the assessed cultivars into distinct cultivar-groups on the basis of pod and seed characteristics. The evaluation has shown that most Greek Arachis cultivars belong to subspecies hypogaea, group Virginia. Only a few belong to subspecies fastigiata,groups Valencia or Spanish. Certain cultivars with tolerance of waterlogging at harvest were identified, such as Lakonia, Serraiki and Sakania Sindu. These cultivars could be used either directly in the Arachis production zone in northern Greece, following further specific evaluation trials, or as material for breeding improvement.