본 연구는 섬피나무의 밀원수종 개발 연구의 기초자료를 확보하고자 경기도 수원에 식재된 섬피나무를 대상으로 꿀벌 방화와 화밀분비 등 밀원수종의 가능성을 조사하고 기상인자와의 연관성을 분석하였다. 2012년 섬피나무의 개화와 화밀이 분비되는 기간은 7일이었으며, 꽃 한 개에서 화밀의 흡수와 분비는 2일간 지속되었다. 꿀벌과 호박벌 위주로 방화가 이루어졌으며, 하루 평균 개화지 한 개에서 각각 160마리와 46마리가 방화되었다. 특히, 꿀벌은 15시에 가장 많은 방화가 이루어졌다. 꽃 한 개의 평균 총 화밀량은 12.0±4.5μl가 분비되었으며, 건조화밀량은 1.0±0.4μl가 분비되었다. 꿀벌의 방화활동은 대기온도와 상대습도에 영향을 받는 것을 알 수 있었으며, 총 화밀량은 대기온도, 상대습도, 전일대기온도차 및 전일 토양온도차에 영향을 받으며, 건조화밀량은 대기온도와 상대습도에 영향을 받는 것을 알 수 있었다.
This study was conducted to provide a basic data such as honeybee visiting and secreted nectar for possibility of development as honey plant, Tilia insularis Nakai in Suwon. The surveyed tree"s flowers bloom and secrete nectar during 7 days in 2012. One of the flowers secretes and absorbs nectar, which lasted for 2 days. Apis mellifera and Bombus ignitus visited flowers in priority, number of visited pollinator per flowering lateral bunch can be assumed 160 honeybees and 46 carpenter bees for a day. Honeybee visiting was concentrated at around 3 pm. On average, volume of total and dry nectar secreted by nectary were 12.0±4.5μl and 1.0±0.4μl from one flower, respectively. As results of correlation analysis between the meteorological traits and surveyed data, we found that honeybee"s activity was influenced by air temperature and relative humidity. Volume of total nectar was influenced by mostly meteorological traits and volume of dry nectar was less influenced by air temperature and relative humidity, respectively. To select honey plant or individual tree, volume of dry nectar must be major judgement factor on breeding because it was less influenced by meteorological traits than volume of total nectar. Finally, the surveyed T. insularis is considered as possible honey plant because of its nectar volume and honeybee visiting. Honey is made of nectar sugar as well as by digestive system of honeybee, therefore a more associated study is necessary to analyze free sugar component in nectar and accurately presume to harvest honey quantity.