当前位置：
X-MOL 学术
›
J. Appl. Ecol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Pollination services in a macadamia cultivar depend on across-orchard transport of cross pollen
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2021-08-22 , DOI: 10.1111/1365-2664.14002 Wiebke Kämper 1, 2, 3 , Stephen J. Trueman 1, 3 , Steven M. Ogbourne 3 , Helen M. Wallace 1, 3
中文翻译：
澳洲坚果品种的授粉服务取决于交叉花粉的跨果园运输
更新日期：2021-08-22
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2021-08-22 , DOI: 10.1111/1365-2664.14002 Wiebke Kämper 1, 2, 3 , Stephen J. Trueman 1, 3 , Steven M. Ogbourne 3 , Helen M. Wallace 1, 3
Affiliation
|
- Pollination services are critical in entomophilous crops. Relationships between pollinator visits and fruit set and mass are complex and optimal strategies to improve pollination are poorly defined. We often do not understand what proportions of the crop result from self- or cross-pollination, how cross-pollination affects crop quality and how far cross-pollen is transported.
- We quantified proportions of self- and cross-paternity in nuts of the partially self-incompatible macadamia cultivar 816 at increasing distances from cross-pollen sources. We estimated the distance of effective pollen movement, evaluated how pollination by different parents affected nut size and nutritional quality, and assessed whether distance from a cross-pollen source determined proportions of cross-pollinated nuts, nut size and number of nuts harvested.
- Almost all nuts resulted from cross-pollination, even at 184 m (23 rows) from a cross-pollen source. The cross-pollen cultivars in closest proximity were usually the pollen parents. Cross-pollination increased nut size and altered kernel nutritional quality. The number of harvested nuts decreased with increasing distance from a cross-pollen source in one orchard. Nut size was generally not affected by distance from a cross-pollen source.
- Synthesis and applications. Macadamia nut production resulted almost entirely from cross-pollination. Crop production was dependent on across-orchard transport of cross pollen, sometimes over at least 184 m. This shows the importance of pollen genotype, not just pollen quantity, in ensuring an effective pollination service. The number of harvested nuts decreased at 24 m from a cross-pollen source, suggesting that different cultivars should be inter-planted more closely in macadamia orchards. We need to better understand pollinator behaviour, including what genotype of pollen the different flower visitors carry, and how far and in what direction they transport pollen across orchards, to optimise crop yield and quality.
中文翻译：
澳洲坚果品种的授粉服务取决于交叉花粉的跨果园运输
- 授粉服务对虫媒作物至关重要。传粉媒介访问与坐果和质量之间的关系很复杂，改善授粉的最佳策略定义不明确。我们通常不了解自花授粉或异花授粉产生的作物比例，异花授粉如何影响作物质量以及异花粉运输的距离。
- 我们量化了部分自交不相容澳洲坚果品种 816 的坚果中自交和交交亲子关系的比例，这些比例与交叉花粉来源的距离越来越远。我们估计了有效花粉移动的距离，评估了不同亲本授粉对坚果大小和营养质量的影响，并评估了与异花粉来源的距离是否决定了异花授粉坚果的比例、坚果大小和收获的坚果数量。
- 几乎所有的坚果都来自异花授粉，即使在距离异花粉源 184 m（23 行）的地方也是如此。最接近的异花粉栽培品种通常是花粉亲本。异花授粉增加了坚果的大小并改变了内核的营养质量。收获的坚果数量随着与一个果园中交叉花粉源的距离增加而减少。坚果大小通常不受与交叉花粉源距离的影响。
- 合成与应用。澳洲坚果的生产几乎完全来自异花授粉。作物生产依赖于交叉花粉的跨果园运输，有时超过至少 184 m。这表明花粉基因型，而不仅仅是花粉数量，在确保有效授粉服务方面的重要性。从交叉花粉来源收获的坚果数量在 24 m 处减少，表明不同品种应在澳洲坚果园中更紧密地套种。我们需要更好地了解授粉媒介的行为，包括不同的花卉访客携带的花粉基因型，以及它们在果园中运送花粉的距离和方向，以优化作物产量和质量。
京公网安备 11010802027423号