STYDYING OF arip'S COLLECTION - THE BASIS OF SELECTION PROCESS FOR NORTHERN ECOTYPE'S SOYA
148 samples of breed by soya from world collection of ARIP were studied to the most important farming and selection parameters in conditions of south-western zone of Non-Black Earth Region of Russian Federation. As the result of identifying of precocity, productivity, nitrogen-fixing capacity and processibility it was selected 60 samples of breed, which are categorized by groups of ripeness: 02 - from very early ripeness to early ripeness - 7 breeds, 03 - early ripeness - 10 breeds, 04 - medium-early ripeness - 10 breeds, 05 - medium ripeness - 14 breeds and 06 - medium-late ripeness - 19 breeds. Samples of breed having selection value under creating breeds of northern ecotype's soya are shown.