KOROLEV

Why «Korolev» from Strube is a choice for pragmatic agronomists

In intensive agriculture, where every hectare must be optimized, choosing a sugar beet hybrid becomes a strategic decision. German breeding from Strube traditionally focuses on the balance between yield and efficiency, and the «Korolev» hybrid stands out as a reliable tool for those who refuse to compromise on crop health.

A Phyto-Sanitary Shield Against Cercospora

The key feature of «Korolev» is its genetic resistance to Cercospora leaf spot. In regions with high humidity or crop rotation challenges, this disease can destroy up to a third of the yield. Strube has endowed this hybrid with strong tolerance to the pathogen, allowing agronomists to either reduce fungicide applications or gain extra security during critical development stages. This is not just about saving on chemicals; it is about ensuring foliage stays healthy until harvest.

Morphology and Sugar Content

Visually, «Korolev» is defined by its medium-sized, broad-conical root shape. This configuration is the «golden mean» for modern harvesters. The roots are easy to lift from the soil, have a smooth surface with minimal root hairs, which reduces mechanical harvesting losses and simplifies cleaning at processing facilities.

• Sugar content: stable at 17–18%.
• Root type: medium-sized, allowing for high plant population density.
• Efficiency: low harvesting losses due to optimal geometry.

Who is this hybrid for? «Korolev» is optimal for farms aiming for stable sugar production in regions with moderate risks of leaf diseases. It is forgiving of minor scheduling errors in protection programs while maintaining its sugar accumulation potential even under stress. It is a workhorse hybrid for those who value the predictability of German breeding and want high-quality raw materials with a high sugar yield without unnecessary operational risks.