CLUSTER ANALYSIS OF COLLECTION VARIETY SAMPLES OF OAT (AVENA SATIVA L.) IN CENTRAL YAKUTIA

Abstract

Results are given from cluster analysis of oat (Avena sativa L.) as to a complex of agronomic traits in initial breeding material of 1999-2007 collection nurseries of 162 accessions. Based on cluster analysis as to the maximum correlation coefficient (rmax = 0.63-0.94) were selected the samples having a close positive relationship with local oat varieties Pokrovsky and Yakutsk-1708 bred at the Yakut Scientific Research Institute of Agriculture. There are presented data of three dendrograms showing clustering as to the maximum correlation coefficient between accessions of 1999-2007 collection nurseries under conditions of permafrost-taiga pale-yellow light-loam soils of Yakutia. There were selected parental forms from 4 to 7 clusters, which included samples from Ivanovo, Tomsk and Omsk Regions, Altai Territory, Finland, Australia, Germany and Hungary to create new varieties of oat fit for rigorous conditions of Yakutia.