Grib I. Productivity of hop depending on cultivation technology elements under conditions of right-bank Fotrest-Steppe of Ukraine

In this thesis the influence of agrometeorological conditions on formation and realization of hop plants biological potential by cultivation of different varieties of hop, usage of planting material of different quality, mineral fertilization in different rates and estimation of economic efficiency of crop cultivation under conditions of right-bank Fotrest-Steppe of Ukraine is studied. Peculiarities of hop vegetative and generative organs formation, duration of growth and development stages under the influence of water and temperature regimes for different quality planting material were determined. Correlation between quality of planting material, fertilizers and yielding capacity for Slovyanka variety of hop was established. Comprasion of productivity formation peculiarities of in-vitro obtained hop plants of Slovyanka, Kymir and Zagrava varieties with and without fertilizers application was done. It was established positive influence of in-vitro planting material and fertilizers application on hop plants productivity formation. The most suitable for conditions of right-bank Fotrest-Steppe of Ukraine were in-vitro obtained plants of Zagrava and Kymir varieties with average yilding capacity of 1,57 and 1,58 t/ha respectively.