Vigor and rapid growth are among the primary breeding objectives for pistachio rootstocks (Sheikhi et al., 2019), particularly in a rootstock grafted to a scion with the extended juvenility of the current Pistacia vera commercial pistachio scions. Arota is a new Iranian interspecific hybrid (Pistacia integerrima ♂ × Pistacia atlantica ♀) pistachio rootstock selected from the progeny of 222 controlled crosses made in 2013 and 2014. Of these crosses, the most vigorous seedlings were evaluated for 4 years for growth relative to the University of California Berkeley seedling rootstock (UCB)—a P. integerrima ♂ × P. atlantica ♀ hybrid using different individuals of the same species (Ferguson and Haviland, 2016). Of the 222 seedling F1 hybrids, 16 had statistically significant better height and diameter growth relative to UCB1. The 16 seedlings achieved a diameter sufficient for T-budding within 5 to 7 months from seed germination that could facilitate orchard establishment within the first year of rootstock growth (Fig. 1).
AkbariM.MahnaN.RameshK.BandehaghA.MazzucaS.2018Ion homeostasis, osmoregulation, and physiological changes in the roots and leaves of pistachio rootstocks in response to salinityProtoplasma25513491362
FergusonL.HavilandD.2016Pistachio production manual. Univ. of California Agriculture & Natural Resources Davis CA
SheikhiA.ArabM.M.BrownP.J.FergusonL.AkbariM.2019Pistachio (Pistacia spp.) breeding p. 353–400. In: J.M. Al-Khayri S.M. Jain and D.V. Johnson (eds.). Advances in plant breeding strategies: Nut and Beverage Crops. Springer Switzerland