The light period duration influence on the laboratory germination of the spring wheat sort seeds of the different geographic origin

The results of the three years’researchon the influence of the light period duration on the seed laboratory germination are presented in the article. The research results have shown that it depends on the geographical origin of wheat sorts, the conditions of vegetation and light period in which its definition occurs.The significantly higher laboratory germination is received in the short light period (8 hours 30 minutes - 8 hours 50 minutes) compared with control (thermostat).