FLOWERING PRECOCITY IN PISTACHIO PROGENIES

Observations have been recorded related to the juvenile period of a total of 1197 pistachio seedlings, obtained from 15 controlled crosses between 6 females and 8 males.
Records of flowering and production intensity were taken when the trees were 7 and 8 years old.
A significant correlation was found between the records of flowering intensity in the two years and, in the case of the females, between flowering and production in each year.
The families ‘Mateur’ x ‘C’, ‘Batoury’ x ‘C’ and ‘Larnaka’ x ‘B’ stood out for their interest, while ‘Mateur’ x ‘Túnez’ and ‘Larnaka’ x ‘M-38’ start to produce slowly.
In relation with the parents, ‘C’, ‘Nazar’, ‘M-502’ (males) and ‘Mateur’ (female) are outstanding, while ‘M-36’, ‘M-38’ and ‘Túnez’ (males) are unpromising.
The flowering precocity, as date of the first flowering, was also recorded.
The tree ages and the percentages over the total number of seedlings were the following: 4 years old (0.5 %), 5 years old (5.1 %), 6 years old (32.2 %), 7 years old (30.6 %), 8 years old (21.2 %) and more than 8 years old (10.4 %). The males showed a shorter juvenile period than the females.

III International Symposium on Pistachios and Almonds

F.J. Vargas, M.A. Romero, I. Vargas

pistachio, Pistacia vera L., breeding, progenies, cultivars, flowering and bearing earliness, juvenile period

https://doi.org/10.17660/ActaHortic.2002.591.46