Forest Sciences Commons^™

Role Of Endogenous Polyamines In The Alternate Bearing Phenomenon In Pistachio, Muhammet Ali̇ Gündeşli̇, Sali̇h Kafkas, Mouzghan Zarifikhosroshahi, Nesi̇be Ebru Kafkas

Turkish Journal of Agriculture and Forestry

Alternate bearing is a significant economic problem adversely affecting the producers, consumers, and economy of a country. In the present study, we aimed to investigate the physiological role of free polyamines (PAs) in fruit bud abscission of the Uzun pistachio variety, which has a strong alternate bearing tendency. The identification and quantification of PAs, such as putrescine (Put), spermidine (Spd), and spermine (Spm), at different physiological stages and in different organs, were carried out by high-performance liquid chromatography. Putrescine was the major PA in all the organs of pistachio trees. Furthermore, the concentrations of Put and Spd in the leaves …