A comparison of coffee floral traits under two different agricultural practices.
A comparison of coffee floral traits under two different agricultural practices.
复制标题
两种不同农业实践下咖啡花性状的比较。
DOI：
10.1038/s41598-019-43753-y
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发表时间：
2019
影响因子：
4.6
通讯作者：
Prado SG
中科院分区：
文献类型：
--
作者：
Prado SG
花的性状和奖励在调节植物和传粉者之间的相互作用中是重要的。农业管理措施可以影响已知影响花性状的非生物因素，然而，我们对农业措施和花性状表达之间的联系的理解仍然知之甚少。本文研究了两种重要农业种咖啡（Coffea arabica）和咖啡（C. canephora，在不同的农业实践（阳光和阴影）进行了评估。阴坡人工林的花冠直径和花冠筒长度较大，花粉全氮含量较高。卡尼佛拉坦太阳种植园。遮荫条件下，锦鸡儿的花冠筒长和花药花丝长较大;阿拉伯咖啡。农业实践没有影响花蜜量，糖或咖啡因浓度，或花粉生产。阳坡人工林花粉全氮含量低于阴坡人工林。中孔珊瑚的生长在阳光下和遮荫下无显著差异。阿拉伯咖啡。这项研究提供了基本数据的影响，农艺措施对C。Arabica和C.此外，该研究还有助于填补关于遮荫树对花卉性状影响的知识空白，这可能与其他农林系统有关。
Floral traits and rewards are important in mediating interactions between plants and pollinators. Agricultural management practices can affect abiotic factors known to influence floral traits; however, our understanding of the links between agricultural practices and floral trait expression is still poorly understood. Variation in floral morphological, nectar, and pollen traits of two important agricultural species,Coffea arabicaandC. canephora, was assessed under different agricultural practices (sun and shade). Corolla diameter and corolla tube length were larger and pollen total nitrogen content greater in shade plantations ofC. canephorathan sun plantations. Corolla tube length and anther filament length were larger in shade plantations ofC. arabica. No effect of agricultural practice was found on nectar volume, sugar or caffeine concentrations, or pollen production. Pollen total nitrogen content was lower in sun than shade plantations ofC. canephora, but no difference was found between sun and shade forC. arabica. This study provides baseline data on the influence of agronomic practices onC. arabicaandC. canephorafloral traits and also helps fill a gap in knowledge about the effects of shade trees on floral traits, which can be pertinent to other agroforestry systems.