Use of yield potential of sugar beet cultivars in the the Czech Republic | Využití výnosového potenciálu odrůd cukrové řepy v ČR
2008
Pulkrábek, J., Czech University of Life Sciences, Prague (Czech Republic) | Černý, I., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Urban, J., Czech University of Life Sciences, Prague (Czech Republic) | Pačuta, V., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Erhartová, D.
Assortment of present genetically single-germ sugar beet cultivars is quite wide and their yield potential and technological and growing characteristics are being improved by breeding; however, the use of these characteristics in operation conditions is very often low. The use of the yield potential in operation conditions is suitably defined by comparison of average data with the results reached in small plot trials. In the last 25 years the root yield in the CR increased at operation area by 0.8 tons and in small plot trials by 1 ton per year. During 2001-2007 the yield potential use was 71.1%. The highest use is in obtained sugar content. The use of yield potential of white sugar production reached 66.5%. The yield of white sugar increased very intensively in the last decade at the operation areas, yearly it increased by 0.2%. The yield of roots converted to 16% sugar content increased in the last decade very significantly, yearly in experiments by 2.35 t per ha and in operation conditions by 2.01 t per ha. Presented results prove very high production intensity and standard of new sugar beet cultivars. Production potential of sugar beet root yield reaches in the CR 110-130 tonnes from hectare, polarization sugar yield potential reaches 18-22 tonnes.
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