Abstract
<jats:p>The methodological recommendations provide information on innovative methods for formation and use of parametric metadata databases (big data) for precision comparison of digital data on ontogenetic characteristics of plant conditions in breeding nurseries aimed at optimisation of selection in the breeding process. The methods of accelerated development of breeding genotypes are proposed. The scientific and methodological recommendations are intended for graduate and doctoral students as guidelines on the precision analysis of parametric data of scientific experiments and for breeders-practitioners to facilitate accurate phenotyping of plants in breeding nurseries of different hierarchical levels to optimise the selection design.</jats:p>