Open AccessSTUDYING OF COMBINING ABILITY OF SUNFLOWER (HELIANTHUS ANNUUS L.) BY A HEAD SQUARE AND SEEDS YIELD IN TESTER CROSSES
Author(s) -
S.А. Guseva,
RosNIISK,
Denis Babushkin,
Possorgo,
RosNIISK Possorgo
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.25230/conf11-2021-54-58
Subject(s) - sunflower , helianthus annuus , yield (engineering) , head (geology) , mathematics , hybrid , square (algebra) , horticulture , statistics , agronomy , biology , physics , geometry , paleontology , thermodynamics
We analyzed a calculation of combining ability (CA) of 21 sunflower genotypes of Russian and foreign breeding by seed yield and head square, determined in a scheme of top-cross. Also there is considered a relation of mean squires of variability of common and specific combining abilities with a purpose to determine prevailing effects of gens. We revealed the sunflower variety samples with high meanings of effects of common combining ability and dispersion of specific combining ability as well as hybrid combinations F1 with high effects of specific combining ability.