Mexico is the leading exporter of mangos worldwide, and ‘Ataulfo’ is one of the most popular cultivars. However, their production has dramatically dropped in recent years due to the high incidence of nubbins. One of the possible causes is the presence of a delayed self-incompatibility found in this cultivar; thus, proximity to compatible cultivars may help to reduce this incidence. Nevertheless, there is a lack of studies that have rigorously tested this hypothesis in this cultivar. For two consecutive years, the present study evaluated the incidence of nubbins, as well as the quality and quantity of commercial fruits of ‘Ataulfo’ trees located at 10, 30, and 50 m away from ‘Haden’ cultivar. Additionally, the yield and economic income of different planting designs were estimated. During both sampling periods, our results clearly indicated that at 10 m away from ‘Haden’ individuals, ‘Ataulfo’ trees presented a lower incidence of nubbins and higher production of commercial fruits, and higher yield and total income per hectare than at 30 or 50 m away from them. These results indicate that planting designs of ‘Ataulfo’ trees located 10 m away from ‘Haden’ will help to satisfy the increasing demand for mangos of this cultivar in the international market.

中文翻译：

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'Ataulfo'与'Haden'品种的空间接近度提高了芒果的产量，并降低了核仁的发生率

墨西哥是全球芒果的主要出口国，“ Ataulfo”是最受欢迎的品种之一。但是，由于核蛋白的高发生率，近年来它们的产量急剧下降。可能的原因之一是在该品种中发现了延迟的自我不亲和性。因此，接近兼容的品种可能有助于减少这种情况。然而，缺乏在该品种中严格检验该假设的研究。连续两年，本研究评估了位于距“哈登”品种10、30和50 m处的“ Ataulfo”树的核仁发生率以及商业水果的质量和数量。此外，还估算了不同种植设计的产量和经济收入。在两个采样期间，我们的结果清楚地表明，与距其30或50 m远的地方相比，距“ Haden”个体10 m处的“ Ataulfo”树木的核仁发生率较低，商业水果的产量更高，每公顷的产量和总收入更高。这些结果表明，距“哈登” 10 m处的“ Ataulfo”树的种植设计将有助于满足该品种在国际市场上对芒果不断增长的需求。