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首页> 外文期刊>Acta Horticulturae >Monitoring pollinator activity in an apple and pear orchard, linked with the analysis of the nectar composition
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Monitoring pollinator activity in an apple and pear orchard, linked with the analysis of the nectar composition

机译：监测苹果和梨果园的传导兰活动，与花蜜组成分析相关联

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摘要

Fruit production is of major importance in Flanders, with a production of 318,0001 of apples and 374,000 t of pears (2014), with 'Jonagold' and 'Conference' as main cultivars, respectively. In apple, it is believed that cross pollination can increaseyield and improve yield stability and fruit quality, therefore, pollen donors are planted within the orchard, and pollinators such as honeybees {Apis mellifera L.) are commonly introduced. In contrast to apple, pear growers pay little attention to pollination. One problem is the limited attractiveness of pear nectar for pollinators, probably because of the relatively low sugar concentration and/or unattractive sugar composition. In this contribution we monitored the pollinator activity in an apple and pear 'orchard after introducing managed bumblebee hives, on the base of standardized transect walks. Furthermore, we compared the sugar content in the nectar between apple and pear flowers. Overall, flower visitation by bumblebees was very low, especiallyfor pear where no bumblebees were observed. A first analysis confirms our hypothesis of higher sugar concentrations in the nectar of apple flowers ('Jonagold') compared to pear flowers ('Conference'). Furthermore, the percentage of sucrose was noticeably lower in pear nectar (3%) compared to apple nectar (63%). This likely explains the low attractiveness of pear flowers compared to apple.
机译：果实产量在佛兰德斯的主要重要性，生产318,0001苹果和374,000吨梨（2014年），分别为“jonagold”和“会议”作为主要品种。在Apple中，据信十字授粉可以增加并提高产量稳定性和果实质量，因此，花粉供体在果园内种植，并且通常介绍蜜蜂{API MELLIFERA L.）的粉丝仪。与苹果相比，梨种植者几乎没有注意授粉。一个问题是梨花蜜对粉碎机的吸引力有限，可能是因为相对较低的糖浓度和/或未吸附的糖组合物。在这一贡献中，我们在介绍了管理的大黄蜂荨麻疹后，在标准化的横向步道的基础上监测了苹果和梨'果园的粉碎机活动。此外，我们将苹果和梨花之间的花蜜中的糖含量进行了比较。总的来说，大黄蜂的花景非常低，尤其是未观察到大黄蜂的梨。第一次分析证实了我们与梨花（'会议'）相比苹果花（'Jonagold'）花蜜的糖浓度的假设。此外，与苹果花蜜（63％）相比，梨花蜜（3％）中蔗糖的百分比明显降低。与苹果相比，这可能解释了梨花的低吸引力。

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