Forner Alcaide 5
Sadness virus resistant pattern
Hybrid of Cleopatra mandarin and Poncirus trifoliata (L.) Raf., obtained in 1978.
General information
Origin
Obtained by crossing Cleopatra Mandarin and Poncirus trifoliata (L.) Raf., obtained in 1978.
Morphological Characteristics
Tree
Medium-sized with profuse branching, short and very thin shoots. Abundant small, conical thorns, less than 1 cm in length. Young shoots are green.
Leaves
Deciduous, mostly trifoliate, pale green. Central leaflet is 4 to 5 cm long and 1 to 1.5 cm wide. Lateral leaflets are 2 to 3.5 cm long and 0.5 to 1 cm wide. Petioles are slightly winged, 1.5 to 2 cm long.
Flowers
White petals, spoon-shaped.
Fruits
Slightly flattened, small, mandarin-like, maturing in November, turning orange. Average weight is 35-36 grams, diameter is 40-45 cm, and height is about 35 cm. The peel is thick with a slightly rough surface.
Seeds
Abundant, polyembryonic, whitish, pointed at the micropyle, with a rounded brown chalaza.
Agronomic Characteristics
Resistance
Resistant to tristeza virus.
Tolerance
More tolerant than Carrizo citrange to limestone, salinity, and waterlogging.
Nematode Resistance
Resistant to citrus nematode Tylenchulus semipenetrans Cobb.
Fungal Resistance
Good resistance to Phytophthora species.
Size
Can be classified as semi-dwarfing to substandard. Trees grafted onto this rootstock are shorter than those grafted onto standard rootstocks currently used (Troyer and Carrizo citranges, Cleopatra mandarin, etc.). This size reduction is between 25% and 50%.
Graft Union
The graft and rootstock reach similar diameters at the union.
Productivity
The productivity of grafted varieties is very high, and the fruit quality is excellent. Maturation is slightly earlier than that induced by Carrizo citrange.
Main Aspects of the Agronomic Behavior of New and Currently Used Rootstocks
Source: Forner, J., 2018. New Hybrid Rootstocks for Spanish Citrus Cultivation. Technical Sheet, Citriculture Series No. 2.
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The data and results shown in these graphic resources are made for informative purposes only and it is not guaranteed to they will be achieved in all cases, due to several facts influencing plant growth such as climatic and geographical circumstances, soil characteristics, as well as use conditions and agricultural habits.
