Optimal pollination thresholds to maximize blueberry production
Optimal pollination thresholds to maximize blueberry production
复制标题
最佳授粉阈值可最大限度提高蓝莓产量
DOI：
10.1016/j.agee.2024.108903
复制
发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Ramírez-Mejía A
中科院分区：
文献类型：
--
作者：
Ramírez-Mejía A
高丛蓝莓作物（Vacciniumspp.）一般依赖于以不同密度储存的蜂箱，很少考虑作物交配系统所决定的最佳授粉水平。这种方法限制了我们准确预测动物授粉对作物生产力的影响的能力，并可能导致授粉不足。使用实验和观测数据，我们估计最佳授粉阈值蓝莓作物，最大限度地提高果实直径。我们操纵柱头花粉负荷，并使用贝叶斯模型来评估对果实直径的影响。通过这种方式，我们能够定义蓝莓中花粉沉积不足，最佳和超最佳的阈值。然后在蓝莓农场的田间条件下评估这些阈值，并使用模拟来估计最佳蓝莓花粉沉积所需的蜜蜂访问的最小数量。一个二次关系描述果径响应柱头花粉负荷，最佳花粉沉积峰值在192花粉四分体和112和274之间。我们的模拟表明，如果访花率保证每朵花平均有6到7只蜜蜂（即每100朵花的访花率为0.6 h-1），那么60%的植物花将获得最佳的柱头花粉沉积。更高数量的蜜蜂访问增加的概率，蓝莓柱头花粉负荷低于最佳和概率，产生较小的浆果。我们发现，蓝莓的不利授粉情况可以通过不同的途径发生，无论是因为授粉不足或过度，直接影响所生产的水果的质量。通过确定阈值，我们提供了一个务实的基础上，适应性管理蜜蜂的平均访问率，最适合种植者操纵。我们的研究为授粉，果实生产以及蜜蜂对蓝莓作物的贡献背后的机制提供了新的见解。我们强调，通过花访监测和明确的最佳授粉目标，系统的授粉管理可以帮助防止有害的授粉情况。
Pollination management for highbush blueberry crops (Vacciniumspp.) generally depends on beehives stocked at variable densities, with little consideration given to optimal pollination levels dictated by the mating system of the crop. This approach limits our capability to accurately forecast the consequences of animal pollination on crop productivity and can result in pollination shortfalls. Using experimental and observational data, we estimated optimal pollination thresholds for blueberry crops that maximize fruit diameter. We manipulated stigmatic pollen loads and used Bayesian models to evaluate the effects on fruit diameter. In this way, we were able to define thresholds for deficient, optimal and supraoptimal pollen deposition in blueberries. These thresholds were then evaluated under field conditions in blueberry farms, and used simulations to estimate the minimum number of honeybee visits required for optimal blueberry pollen deposition. A quadratic relationship described fruit diameter in response to stigmatic pollen load, with optimal pollen deposition peaking at 192 pollen tetrads and ranging between 112 and 274. Our simulations showed that a flower visitation rate guaranteeing, on average, six to seven honeybee visits per flower (i.e. flower visitation rate of 0.6 visits per 100 flowers h−1) would result in 60% of the plant flowers receiving optimum stigmatic pollen deposition. Higher numbers of honeybee visits increased the probability that blueberry stigmatic pollen loads were below the optimum and the probability that smaller berries were produced. We show that adverse pollination scenarios in blueberries can occur through different pathways, either because of a deficit or an excess of pollination that directly impacts the quality of the fruits produced. By identifying thresholds, we provide a pragmatic basis for adaptive management of honeybees based on average visitation rates that are most suitable for growers to manipulate. Our study provides new insights into the mechanisms behind pollination, fruit production, and the contribution of honeybee to blueberry crops. We highlight that systematic pollination management through flower visitation monitoring and clear optimal pollination targets can help prevent detrimental pollination scenarios.
登录
查看更多内容
外来水果作物的授粉更多地取决于现存的授粉媒介和景观结构，而不是本地蜜蜂的管理
DOI：
--
发表时间：
2023
期刊：
Agriculture, Ecosystems & Environment
影响因子：
--
作者：
M. Miñarro;Daniel García;Rocío Rosa
通讯作者：
Rocío Rosa
蜜蜂密度对农作物产量的影响：荟萃分析
影响因子：
5.7
作者：
Orianne Rollin;L. Garibaldi
通讯作者：
L. Garibaldi
蓝莓花龄、授粉和 Monilinia vaccinii-corymbosi 分生孢子感染之间的关系。
影响因子：
3.2
作者：
H. Ngugi;H. Scherm;J. S. Lehman
通讯作者：
J. S. Lehman
蜜蜂（膜翅目：蜜蜂科）的造访和花粉源对‘墨西哥湾’南部高丛蓝莓结果的影响
DOI：
--
发表时间：
1993
期刊：
影响因子：
--
作者：
R. Danka;G. Lang;C. L. Gupton
通讯作者：
C. L. Gupton
景观结构和农业管理相互作用，调节蓝莓的授粉供应和作物生产
影响因子：
5.7
作者：
Andrés F. Ramírez‐Mejía;P. G. Blendinger;B. Woodcock;R. Schmucki;Lorena Escobar;Richard Daniel Morton;Lorena Vieli;Patrícia Nunes‐Silva;S. Lomáscolo;C. Morales;Maureen Murúa;K. Agostini;N. Chacoff
通讯作者：
N. Chacoff