| 0 | PI 658358 | 'Avana apireno' | Citrus ×aurantium L. var. chrysocarpa (Hassk.) ined. | Sicilia, Italy | RIV | | | 2006 | DEVELOPED | | | | | | Cultivar | The 'avana' group of mandarins are the Italian versions of the common Mediterranean/Willowleaf/Comun types. This selection is fairly commonly grown in Sicily (particularly the area near Catana). As indicated by the name, this selection has few seeds. Information from Australia indicates that it is 3 - 5 weeks later than 'Imperial' mandarin (which matures similar to 'Owari' satsuma). It was selected for introduction to the US during a visit to Corsica during the 1997 ISCN conference. (RR Krueger, 12/2006) Regarding the origin of this accession, the INRA San Giuliano website, 'Avana apireno' originated in 1810 in Italy (most probably Sicily). However, Russo et al (1977), referencing Russo et al (1975), state: "The 'Avana Apireno' mandarin was discovered in a 'Avana' orchard in the Picanello area of Catania 1962. At that time 3 trees that produced fruit with few seeds were recognized. From that time, the clonal offspring of those trees tested for many years in different places of Southern Italy have confirmed this quality...The production and quality of the fruit are similar to that of the 'Avana' and the 'Avana Apireno'...A nucellar line produced from one of the 3 original trees in 1962 has confirmed the low seediness of the mother tree. However the nucellar line has fewer seed per fruit than the mother tree..." (RR Krueger, 03/21/2008) | 1715786 | PI 658358 |
| 1 | RCRC 4222 | 'Mapo' | Citrus ×aurantium L. | Sicilia, Italy | RIV | | | 2011 | DEVELOPED | 1950 | | | | | Cultivar | According to Russo et al (1977) (see also Russo, 1972): "The 'Mapo' tangelo is a slow growing tree of medium vigor, broad spreading, open in growth habit (in comparison with 'Avana' ('Willowleaf'), leaves lanceolate, average size between grapefruit and 'Willowleaf'. In some hot areas, in the summer, some leaves on the south side of the tree develop yellow spots. Fruit is medium to large size, obovoid, average weight g 200, rind is medium thin (average 4 mm), easily peelable, and the surface is smooth. Fruit color is yellowish-orange at maturity, The flesh is tender, very juicy, and pleasantly aromatic (distinctive). Seeds are few to medium, polyembryonic. In the absence of cross-pollination many fruits (average 50 % ) are seedless. The cultivation of 'Mapo' tangelo in Italy in 1976 was estimated at about 150 hectares." The data in Russo et al (1977) indicates that in October, in three locations in Italy, the sugar/acid ratio is only in the 6:1 range, indicating that 'Mapo' is not particularly early. Information from agraria.org indicates of 'Mapo' "Its fruits have a very thin skin that is mostly green even when fully ripe. The pulp, yellow-orange uniform, has a pleasantly acid taste. It 'a tree of medium vigor, strong-limbed bulbous expanded, with branches that tend to bend down and presenting only the most vigorous thorns". Furthermore, according to Wikipedia: "Its shape is equal to that of grapefruit, but slightly smaller. It is characterized by a pleasantly bitter taste with some notes of mandarin [citation needed], and the pulp is a yellow-orange uniform, while the thin outer skin has a green color, while the tree is a structure with moderate to severe behavior globose with extended branches that tend to bend down and plugs are present only in the more robust branches. From this result it produces a liqueur produced by the Campari Group Mapo Mapo, also known for its commercials" (Note: translations by Google). The essential oil composition of 'Mapo' has been reported by Dugo et al (1990). 'Mapo' has been reported to be particularly susceptible to Xyloporosis and to exhibit distinct symptoms as compared to other varieties (Terranova et al, 1991). Therefore, it has been utilized as an indicator for the Xyloporosis and Cachexia producing variants of Hop Stunt Viroid. However, it sensitivity as compared to the standard 'Parson's Special' indicator under California conditions is unknown at this time. (RR Krueger, 07/05/2011) | 1880994 | RCRC 4222 |