阿尔博萨纳橄榄自不相容,但与其他一些低活力橄榄栽培品种互不相容

J. Cuevas, Fernando M. Chiamolera, V. Pinillos, Francisco Rodríguez, Irene Salinas, Diego Cabello, A. Arbeiter, D. Bandelj, Marina Raboteg Božiković, G. Vuletin Selak
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引用次数: 0

摘要

新潮的高密度橄榄园通常是单品种果园,大多使用 Arbequina 栽培品种。然而,Arbequina 表现出很强的自交不亲和反应,其产量取决于风的异花授粉,而这种情况并不总是存在。为了找到合适的自交不亲和栽培品种来替代 Arbequina,我们评估了 Arbosana 在不同授粉处理(自花授粉、开放授粉和三种异花授粉处理)下的花粉-雌蕊互作、坐果率和种子亲和力:× 这些栽培品种都是低变异品种。所有这些栽培品种都是适合高密度果园的低活力栽培品种,因此是阿尔博萨纳的潜在授粉者。研究结果表明,Arbosana 也有自交不亲和现象,由于自花授粉花的花粉管生长受到强烈抑制,受精水平降低,导致坐果率大幅下降。种子亲子鉴定分析证实了阿尔博萨娜的自交不亲和反应,并表明在自花授粉情况下套袋芽中获得的一些果实实际上是异花授粉的产物。总之,我们建议不要在大型单品种果园中使用 Arbosana。相反,在与 Sikitita、Arbequina 和 Koroneiki 的花粉进行异花授粉时,我们获得了良好的结果,因此我们建议在适当的授粉设计中将它们作为 Arbosana 的授粉者。这是首次报道 Arbosana 的自交不亲和性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Arbosana Olive Is Self-Incompatible, but Inter-Compatible with Some Other Low-Vigor Olive Cultivars
Trendy high-density olive fields are often monovarietal orchards, mostly using the cultivar Arbequina. However, Arbequina shows a strong self-incompatibility response, and its yields depend on wind cross-pollination, which is not always available. With the aim of finding suitable self-compatible cultivars that can replace Arbequina, we evaluated pollen–pistil interaction, fruit set and seed paternity in Arbosana under different pollination treatments: self-pollination, open-pollination and three cross-pollination treatments: × Arbequina, × Sikitita and × Koroneiki. All these cultivars are low-vigor cultivars suitable for high-density orchards, making them potential pollinizers for Arbosana. The results show that Arbosana is also self-incompatible with a strong reduction in fruit set due to a lower fertilization level caused by a strong inhibition of pollen tube growth in self-pollinated flowers. Seed-paternity analyses confirmed the self-incompatibility response of Arbosana and suggest that some fruit obtained in bagged shoots under self-pollination were, in fact, a product of cross-fertilization. In conclusion, we recommend against the use of Arbosana in large monovarietal orchards. On the contrary, good results were obtained under cross-pollination with Sikitita, Arbequina and Koroneiki pollen, allowing us to recommend them as pollinizers for Arbosana in appropriate pollination designs. This is the first time Arbosana self-incompatibility has been reported.
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