Ways to improve Karelian sort-population Phleum pratense L. olonetskaya local

The article presents the results of the individual selection of 1006 P. pratense plants from the homotypical plant stand of Olonetskaya local, Karelian sort according to the number of leaves, the length of the stem and inflorescence. The received reproductive samples (1720 items) were studied with consideration of the form, leafage, width of lamina, length, number of stems, phytomass, and anthurus length. The structure of interrelation among the above-mentioned variables was evaluated with the help of the factor analysis. The unidirectional change of the herbage crop factors (taken by the years), the number of stems per one plant, foliage and formation of more narrow blades for the plants with sprawling forms were established. The use of the combination of the cluster and recursive discriminatory analysis revealed the presence of 6 groups of reproductive samples, including the second group with maximum factors for the stem length, taken by the years herbage crop, and the number of stems per one plant with the upright form of the plant and increased foliage values for the anthurus length. One can make a conclusion that this method is promising for the subsequent selection of more productive forms. The selected reproductive samples (20,4 %) are of interest for further evaluation of seminal productivity.