Sėjos laiko įtaka žieminių kviečių produktyvumui

Abstract

Winter wheat like other plants are sensitive to the effects of climate change. Climate change is particularly important for winter wheat as it affects their yield and grain quality. Choosing the right sowing time can maximize the result of genotype and environmental interaction, thus increasing the yield and quality of wheat. This experiment was held on 2017–2018 year in Experiment Station of Aleksandras Stulginskis University to determine the effect of sowing time on productivity of common wheat. Object A: winter wheat varieties ’Skagen’ and ’Julius’, object B: different sowing dates: September 1, 14 and 27. The results shows that higher amount of dry matter was accumulated by winter wheat that were sown earlier. The early sown winter wheat crop was of the highest density and sown on September 14 and 27 the density of crops differed insignificantly. Early sown winter wheat crop marked with highest density, therefore there were no essential difference between density of winter wheat sown on September 14 and 27. Yield of winter wheat that were sown the latest (September 27) essentially decreased compared to the yield of winter wheat that were sown earlier (September 1 and 14).