Effect of N fertilizing on gas exchange, leaf photosynthetic performance and nutrient concentrations of Sweet Cherry cv. 0900 ziraat

Authors : Kadir UÇGUN, Bahar TÜRKELİ, Murat CANSU, Mesut ALTINDAL

Pages : 78-84

Doi:10.21657/soilst.1218439

View : 17 | Download : 8

Publication Date : 2022-12-13

Article Type : Research Paper

Abstract :In this study, the effect of nitrogen insert ignore into journalissuearticles values(N); fertilization on gas exchange and the photosynthetic performance of cherry leaves were investigated. In the study, 4 different doses of N were applied from the soil, and N, P, K, Ca, Mg, Fe, Mn, Zn, and B concentrations were determined in leaf samples taken from the middle part of the shoots 65-70 days after full flowering. Assimilation rate insert ignore into journalissuearticles values(A);, the concentration of intercellular CO2 insert ignore into journalissuearticles values(Ci);, transpiration rate insert ignore into journalissuearticles values(Tr);, stomatal conductance to water vapor insert ignore into journalissuearticles values(Gsw);, total conductance to CO2 insert ignore into journalissuearticles values(Gtc);, and total conductance to water vapor insert ignore into journalissuearticles values(Gtw); were measured simultaneously with leaf collection for mineral analysis. Leaf water use efficiency insert ignore into journalissuearticles values(WUE); and instantaneous carboxylation efficiency insert ignore into journalissuearticles values(ICE); were calculated. N fertilizing affected the leaf accumulation of some macro insert ignore into journalissuearticles values(N, P, K, Ca, and Mg); and micro insert ignore into journalissuearticles values(B); nutrients. As N doses increased, N content of leaf increased, while decreasing leaf P, K, and B contents. N fertilizing negatively affected Tr, A, Gsw, Gtw, Gtc, and ICE. While there were negative correlations between leaf N concentration and gas exchange and leaf photosynthetic performance, they were positive for P and K. It means that changes in gas exchange and leaf photosynthetic performance were not related to increasing leaf N concentration, but decreasing leaf K and/or P concentrations depending on N fertilizing.
Keywords : Assimilation rate, Concentration of intercellular CO2 Nutrient, Nutrient, Concentration of intercellular CO2, Nutrient, Stomatal conductance, Transpiration rate