Open AccessNECTAR PRODUCTIVITY OF SUNFLOWER LINES AND HYBRIDS
Author(s) -
O.A. Rubanova
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.25230/conf11-2021-89-93
Subject(s) - nectar , sunflower , sugar , hybrid , biology , pollination , crop , agronomy , horticulture , botany , pollen , food science
Common sunflower is an entomophilous crop; therefore, the presence of pollinating insects is necessary for the realization of the potential productivity of plants. Nectar is the main attractant of sunflower. In this work we determined the nectar bearing capacity and sugar content (dry matter content) of nectar in tubular flowers of various sunflower genotypes using microcapillary tubes with an inner diameter of 0.25 mm and an outside diameter of 0.50 mm. We noted the maximum amount of nectar in a line of genetic collection MVG-8 – 0.32 mg/flower. We observed the maximum value of sugar content in hybrids NK Brio and Factor – 61 and 57 %, respectively. The Oksi hybrid had the minimum values in the amount of 0.11 mg/flower and 21 % of the nectar sugar content.