ISHS Acta Horticulturae 293: IX International Symposium on Apricot Culture
RIPENING DATE AND FRUIT TRAITS IN APRICOT PROGENIES |
| Authors: | D. Bassi, P. Negri |
| Abstract:
An apricot breeding program was started in 1980 to improve the present-day cultivar assortment primarily by extending the ripening season and enhancing fruit taste and aroma. The following traits were investigated: date of ripening, fruit firmness, ripening uniformity of the fruit cheeks, cracking, pit burn, flavor and kernel taste. The parents were chosen for one or more traits: ‘Ouardi’ for extreme earliness of ripening, ‘Reale di Imola’ for outstanding taste, ‘San Castrese’ for productivity and uniformity of ripening, ‘Tirynthos’ for earliness and fruit firmness. The following progenies were obtained: ‘Ouardi’ x ‘Tirynthos’, ‘Ouardi’ x ‘Reale’, ‘San Castrese’ x ‘Reale’. The main results were as follows. Date of ripening: all progenies showed rather bi-modal patterns which could imply the presence of oligogenes regulating this trait. Firmness, uniform cheek ripening, non-susceptibility to fruit cracking and pit burn: ‘San Castrese’ played a significant role in yielding a high frequency of seedlings bearing fruits with good traits. Flavor: none of the seedlings had fruit with the excellence of ‘Reale’. Kernel taste inheritance: a possible two-gene interaction model is proposed. | |
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