Архів за місяць: 2018



THE EFFICIENCY OF BOMBUS TERRESTRIS AS POLLINATORS OF SWEET CHERRIES IN UKRAINE

European Sciences review

Scientific journal

№ 3–4 2018 (March–April)

THE EFFICIENCY OF BOMBUS TERRESTRIS (INSECTA: APIDAE) AS POLLINATORS OF SWEET CHERRIES IN UKRAINE

Ryabceva Yulia Sergeevna,

doctor of Philosophy (Ph. D),

Head of the Scientific-Research Laboratory

“Live Country”, Agri Research Foundation

E-mail: yr@futura.com.ua

Abstract: The efficiency of Bombus terrestris colonies pollinating the sweet cherry orchards was studied in two locations of Ukraine: Novoselki village, Kyiv region (Institute of Horticulture, National Academy of Agrarian Sciences of Ukraine), and Sadove village, Zaporizhia region (Producing and commercial company “Melitopol cherry” Ltd). In the study of the bumblebee flying activity, it was established that the insects remained active during the whole day in spring if the temperature was stable. Our observations confirm that the bumblebees successfully pollinate the plants in the overcast weather, starting at the temperature threshold of 8 °C, which is especially important for pollination of the outdoor crops.

Bumblebee colonies provided a significant increase in the yield of sweet cherry by 29.93% (Sadove village), and by 503% (Novoselki village). This incredible increase in the latter yield is caused by the timely and high-quality pollination of flowers by bumblebees, counteracting to a degree the unfavorable spring weather conditions of 2017 in Kyiv region.

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