Sorghum variety Yarona is a late-maturing, two-colored common sorghum variety, adapted to the conditions of the Right-Bank Forest-Steppe of Ukraine. Research conducted between 2020–2022 established that this variety forms grain yield at a level of 3.5 t/ha and biomass around 36.2 t/ha, which is slightly lower compared to early- and mid-maturing varieties such as hybrid Svat and variety Smotrych. The number of grains per panicle in the Yarona variety is approximately 1613, and the 1000-grain weight is 25.9 g, which is the lowest among the studied varieties. The plant height of the Yarona variety reaches 91 cm, and stem diameter varies from 1.50 to 1.65 cm. The variety is capable of forming up to two panicles per plant.
Studies showed that the Yarona variety exhibits resistance to unstable moisture, characteristic of the Right-Bank Forest-Steppe region, making it suitable for cultivation under these soil-climate conditions. Despite its lower yield compared to other varieties, the Yarona variety maintains stable biometric indicators and is capable of forming fully developed grains with good weight. Correlation analysis confirmed a strong relationship between elements of yield structure and overall productivity, indicating the importance of these indicators for assessing the variety’s potential.
Thus, the Yarona variety is a promising option for cultivation in the Right-Bank Forest-Steppe of Ukraine, especially in situations where a late-maturing variety with resistance to moisture fluctuations is required. Its biometric characteristics and ability to form up to two panicles per plant ensure a certain level of productivity and yield stability, which is crucial for farmers aiming to adapt crops to local conditions.
