ABSTRACT

A study was carried out to determine the influence of five pre-selected F1 half-sib seedling rootstocks, including ‘Morabbaei’ and ‘Zinati’ (the self-compatible crabs), ‘Azayesh’ (the self-incompatible crab), ‘Northern Spy’, and ‘Golden Karaj’, on commercial apple cultivars in 2017–2018. For this purpose, bloom phenology, ripening time, flowering intensity, fruit set, total fruit number and yield, tree height, and shading area were evaluated. Bloom end was postponed by the three crabs and ‘Northern Spy’ seed rootstocks. Overall, scions on ‘Zinati’ and ‘Morabbaei’ had higher inflorescence and on ‘Morabbaei’ seedlings managed to retain more fruits. In addition, the highest total fruit number and yield were achieved by ‘Morabbaei’ seed rootstocks. Through the lowest tree height and shading area, the cultivars’ highest vigour control was performed by ‘Morabbaei’ and ‘Zinati’. It was concluded that the self-compatible dwarf seedlings (‘Morabbaei’ and ‘Zinati’) elevated the trees’ uniformity and induced high yield and long blooming period.

摘要

进行了一项研究以确定五种预选的 F1 半同胞幼苗砧木的影响，包括“Morabbaei”和“Zinati”（自交蟹）、“Azayesh”（自交蟹）、“Northern” Spy”和“Golden Karaj”，关于 2017-2018 年的商业苹果品种。为此目的，评估开花物候、成熟时间、开花强度、坐果、总果实数和产量、树高和遮荫面积。三只螃蟹和'Northern Spy'种子砧木推迟了开花结束。总体而言，'Zinati' 和'Morabbaei' 上的接穗具有更高的花序，而'Morabbaei' 幼苗上的接穗保留了更多的果实。此外，'Morabbaei' 种子砧木的总果实数和产量最高。通过最低的树高和阴影区域，品种的最高活力控制由'Morabbaei'和'Zinati'进行。得出的结论是，自交矮化幼苗（'Morabbaei'和'Zinati'）提高了树木的均匀性，并诱导了高产和长开花期。