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首页> 外文期刊>Acta Horticulturae >Floral Quality and Inflorescence Architecture in Olea europaea 'Arauco' (La Rioja, Argentina)
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Floral Quality and Inflorescence Architecture in Olea europaea 'Arauco' (La Rioja, Argentina)

机译：Olea europaea“ Arauco”（阿根廷拉里奥哈）的花卉品质和花序建筑

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Floral quality is often overlooked as being one of the key yield determinants in olive. One aspect of floral quality is the number of perfect hermaphroditic flowers with both male and female reproductive parts relative to imperfect, staminate (male) flowers. We assessed inflorescence density, number of perfect and imperfect flowers, and inflorescence architecture in the cultivar 'Arauco' on the north- and south-sides of six 40-year-old trees growing in a small traditional orchard with a 10x10 m planting density in Aimogasta (La Rioja, Argentina). Some complementary measurements were done in a second orchard. A trade-off was found in the first orchard between inflorescence density and floral quality with inflorescence density being less on the northside of the trees versus the south, while the number of perfect flowers showed the opposite pattern. This phenomenon led to a negative relationship between inflorescence density and percentage of perfect flowers per inflorescence. Comparing the two orchards, the well-irrigated and fertilized first orchard that received flood irrigation every two weeks and manure as fertilizer had the greatest percentage of perfect flowers at the most terminal position on the inflorescence. In contrast, the second orchard received only occasional flood irrigation and no fertilization, had fewer perfect flowers, and the perfect flowers (%) were not greater at the terminal position than more basal branch positions. As a whole, these results show that both biological factors such as inflorescence density and orchard management strongly affect floral quality in the Argentinean cultivar 'Arauco'. Detailed experimental studies are needed to better understand the various influences on floral quality and inflorescence architecture.
机译：花卉品质通常被认为是决定橄榄产量的关键因素之一。花卉质量的一个方面是相对于不完善的，具雄蕊的（雄性）花，具有雌性和雌性生殖部分的完美雌雄同体花的数量。我们评估了六棵40岁树的栽培品种'Arauco'的南北侧的花序密度，完美和不完整的花朵数量以及花序结构，这些树木生长在一个小传统果园中，种植密度为10x10 m。 Aimogasta（阿根廷拉里奥哈）。在第二个果园中进行了一些补充测量。在第一个果园中，在花序密度和花质之间发现了一个折衷，花序密度在树的北侧比南侧少，而完美花的数量则显示相反的模式。这种现象导致花序密度与每个花序的完美花朵百分比之间存在负相关关系。比较这两个果园，每两周进行一次大水灌溉和施肥的果园每两周进行一次洪水灌溉，而肥料作为肥料在花序的最末端位置的完美花比例最大。相比之下，第二个果园仅接受偶尔的洪水灌溉，没有施肥，完美花朵较少，并且末端位置的完美花朵（％）并不比基础分支位置更大。总体而言，这些结果表明，诸如花序密度和果园管理之类的生物学因素都强烈影响阿根廷“ Arauco”品种的花卉品质。需要进行详细的实验研究，以更好地了解对花卉质量和花序结构的各种影响。

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