Widening of area and increasing the crop capasity in Russia in the XX century on the basis of development of native selection

The analysis of the data published in 1930-1933 years in books of VIR, All-Union Plant Research Institute «Plant-growing of USSR» and in 1997-2007 years in materials of state commission of test varieties and protection of selection's achievements permits to draw a conclusion that area of grain crops in all Russian regions in XX century was noticeably widened. It was shown that the increasing the crop capacity was reached in all regions but in winter wheat in Northern Caucasia district especially. The large number of varieties of wide area was created in all grain crops in 1970-1990 years that permit to raise the crop capacity in unfavorable years and to increase the total yield of grain.