Entomologist Craig Abel introduces a hive of bumblebees into a field cage for controlled pollination of zinnias. United States Department of Agriculture North Central Regional Plant Introduction Station, Iowa, USA.
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TOP22285468
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達志影像
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RM
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agriculturalresearchusdaagriculturepeoplehumanpersonmangeneticvariabilitypollinationstudyentomologyentomologistpollinationflowersflowerzinniaszinniapollinationofzinniasbeepollinationresearchersresearcherresearchingresearchfieldresearchbumblebeepollinationbumblebeepollinationresearchpollinationresearchcontrolledpollinationbumblebeehivesbumblebeehiveentomologists
agriculturalbeebumblebeebumblebeebumblebeebumblebeecontrolledentomologistentomologistsentomologyfieldflowerflowersgenetichivehiveshumanmanofpeoplepersonpollinationpollinationpollinationpollinationpollinationpollinationpollinationpollinationresearchresearchresearchresearchresearchresearcherresearchersresearchingstudyusdaagriculturevariabilityzinniazinniaszinnias
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