Manthos Ioannis, Rouskas Dimos
Department of Nut Trees, Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organization-Dimitra, Neo Krikelo, 35100 Lamia, Greece.
Plants (Basel). 2021 Dec 13;10(12):2738. doi: 10.3390/plants10122738.
Ιn an effort to create walnut cultivars () with high productivity, fruit quality and lateral bearing, a new cultivar, named "Leto", was created by the cross "Gustine" × "Pedro". Its main phenological and pomological characteristics were assessed according to the criteria of IPGR (1994) and UPOV-TG/125/6 (1999), for 10 consecutive years and compared with its maternal cultivars and "Chandler". Observations showed that "Leto" has high lateral bearing habit (90%) and presents satisfactory yield at the full production age. The tree size is smaller than that of its parents and "Chandler", female flowers bloom from 11 to 22 of April and male from 3 to 6 of April. "Leto" nuts are harvested at the end of September, present easy hull dehiscence and high kernel percentage. Other positive nut characteristics of "Leto" are light kernel color, well kernel filling and easy removal of the kernel halves. "Leto" is a mid-early cultivar of great interest due to its high- quality nuts, suitable for dense plantings, in regions where the last spring frosts occur in late March to early April, thus, making it a promising cultivar for Greece, but also for other regions with similar geomorphological and climatic conditions.
为培育出具有高产、果实品质优良和侧生结果习性的核桃品种，通过“古斯汀”ד佩德罗”杂交培育出了一个名为“莱托”的新品种。根据国际植物遗传资源研究所（1994年）和国际植物新品种保护联盟技术指南TG/125/6（1999年）的标准，连续10年对其主要物候和果实学特征进行了评估，并与其母本品种和“钱德勒”进行了比较。观察结果表明，“莱托”具有较高的侧生结果习性（90%），在盛果期产量令人满意。树体大小比其亲本和“钱德勒”小，雌花于4月11日至22日开放，雄花于4月3日至6日开放。“莱托”坚果于9月底收获，外壳易开裂，出仁率高。“莱托”坚果的其他优点包括果仁颜色浅、果仁充实度好以及果仁两半易于分离。“莱托”是一个中早熟品种，因其优质坚果而备受关注，适合在3月下旬至4月初出现晚春霜冻的地区进行密植，因此，它不仅对希腊，而且对其他具有相似地貌和气候条件的地区来说都是一个有前景的品种。
