STUDY OF MORPHOGICAL AND BIOMETRIC CHARACTERISTICS OF NEW EARLY AND MEDIUM-EARLY DIGAPLOID LINES OF CORN AND HYBRIDS CREATED WITH THEIR PARTICIPATION
Currently, the creation of new hybrids of corn is being carried out using a variety of modern methods of breeding this crop. However, one of the main methods for evaluating both the new starting material and the hybrids created with its participation remains the study of biometric and morpho-biological characteristics, in which special attention is paid to such structural elements as: plant height, number of leaves, height of attachment of the first ear , such biometric characteristics of the studied material as the length of the cob, the diameter of the core, the mass of grain from the cob, and others are also of great importance. In this work, carried out on the experimental fields of the National Grain Center named P.P. Lukyanenko for two years, a scientific work was carried out to study the main biometric and morpho-biological characteristics of the new source material, namely, new early maturing and mid-early dihaploid lines of maize. The initial material for the creation of new early maturing and mid-early lines of maize were 6 lines from the genetic collection of the NGC named P.P. Lukyanenko: KR 802 MV, KR 768 / 914-1-2, KR 733/6 MV, KR 244 MV, KR 801 MV, KR 3070 MV. The results obtained allow us to isolate the source material that meets the high requirements of breeders. Also, the study of morpho - biological and biometric characteristics allows you to select the most suitable lines for seed production of this crop