Foraging and Pollination Behaviour of Apis mellifera adansonii Latreille （Hymenoptera, Apidae） on Gossypium hirsutum （Malvaceae） Flowers at Dang （Ngaoundere, Cameroon）  

作　　者：Mazi Sanda Tchuenguem Fohouo Femand-Nestor Briackner Dorothea 

机构地区：[1]Department of Biological Sciences, University of Ngaounddrd, P.O. Box 454, Ngaounddrd, Cameroon [2]Forschungsstelle ffir Bienenkunde, Universitdt Bremen, FB2, Postfach 330440, 28334 Bremen, Germany

出　　处：《Journal of Agricultural Science and Technology(A)》2013年第4期267-280,共14页农业科学与技术（A）

摘　　要：To evaluate Apis mellifera adansonii Latreille impact on fruit and seed yields of Gossypium hirsutum L., its foraging and pollinating activities were studied in Ngaoundere for two seasons. Observations were made on 340 flowers each year and divided in three treatments. The treatments included unlimited flowers access by all visitors; bagged flowers to deny all visits and limited visits by Apis mellifera adansonii only. The worker bees seasonal rhythm of activity, its foraging behaviour, its pollination efficiency, the fruiting rate, the number of seeds per fruit and the percentage of normal seeds were evaluated. Results show that this bee foraged G. hirsutum flowers throughout the whole blooming period. This bee species intensely harvested pollen and nectar. The mean foraging speed was 9.41 flowers per rain in 2009 and 8.41 flowers per min in 2010. The fruiting rate, the number of seeds per fruit and the percentage of normal seeds of unprotected flowers were significantly higher than those of flowers protected from insects. Through its pollination efficiency, Apis mellifera adansonii provoked a significant increment of the fruiting rate by 60.84% in 2009 and 36.48% in 2010, as well as the number of seeds per fruit by 94.16% in 2009 and 31.41% in 2010, and the percentage of normal seeds by 94.23% in 2009 and 33.49% in 2010. The installation ofA. m. adansonii colonies close to G. hirsutum fields could be recommended to increase fruit, seed and honey yields, and pollen production as a hive product in the region.

关 键 词：Gossypium hirsutum Apis mellifera adansonii FORAGING POLLINATION 

分 类 号：S791.254[农业科学—林木遗传育种] Q958[农业科学—林学]