Climate getting warmer and spring bread wheat yield in the southern forest conditions of Western Siberia

Data of the analysis of change of maximum and minimum temperatures and average monthly precipitations almost are presented from 1961-2009 in Omsk region. Results of average daily temperature and precipitations amount on decades are presented on the basis of Omsk hydremeteorological service data from 1971-2013. The tendency of climatic factors change in Omsk region for almost fifty-year period is defined. Calculation of climatic indicators connection with productivity of spring wheat is carried out in Yield Trial nursery of OSAU and Moskalenskiy State Yield Trial. Decrease of yield level of spring wheat varieties and climate getting warmer were positively correlated with intensity of defeat and frequency the of epiphytoty years. The conducted researches are directed on development of further breeding strategy of spring bread wheat in the conditions of Western Siberia.