LD R 1687 X LD R 1689 — this is a hybrid of corn for grain and feed, characterized by a number of unique morphological and physiological features. The plant is distinguished by very low or low stature, which ensures ease of agronomic care and reduces the risk of lodging. Leaves have medium leaf blade width, slightly curved, with rounded and blunt tips. Anthocyanic pigmentation is weak or absent on the sheath of the first leaf, roots at the stem, and glumes, which may indicate low susceptibility to stress conditions associated with excessive pigment accumulation. Flowering and silk emergence time for this hybrid is average, allowing its use in various climatic zones with moderate growing seasons. Ear structure is characterized by medium density and weak anthocyanic pigmentation of the anthers, as well as a small angle between the main axis and lateral branches, which are straight and have a medium number of primary branches. These features contribute to effective pollination and grain formation. The ear of LD R 1687 X LD R 1689 is weakly conical, short or medium in length with medium diameter and medium-length stalk. The grain is intermediate type with yellow-orange coloring on the upper part and orange lower part, indicating high quality of feedstock. The intensity of anthocyanic pigmentation on the ear stalk is weak, further highlighting the hybrid's adaptability to various growing conditions. Overall, this corn hybrid represents a reliable choice for grain and feed production with good yield and stability.
