Pelleting with Puperabsorbent, Chitosan, and Phosphorus Fertilizer as a New Method to Improve Growth, Yield, and Physiological Attributes of Potato mini-tuber

Authors : Sevda GHASEMİ GERMİ, Morteza BARMAKİ, Salim FARZANEH, Mandana AMİRİ

Pages : 570-582

Doi:10.15832/ankutbd.974390

View : 15 | Download : 5

Publication Date : 2022-10-17

Article Type : Research Paper

Abstract :Seed pelleting is a technique of covering seeds with adhesive agents to improve seed performance and plant establishment while reducing production costs. To evaluate the responses of potato superelite minitubers to different pelleting treatments both qualitatively and quantitatively, a 2-year experiment was conducted based on randomized complete block design with three replications in Mohaghegh Ardabili University, Ardabil, Iran during 2018 and 2019. Experimental treatments included 17 different combinations of zeolite insert ignore into journalissuearticles values(ZE); or cocopeat insert ignore into journalissuearticles values(CO); fillers, coating insert ignore into journalissuearticles values(SC); or soil application insert ignore into journalissuearticles values(SS); of triple superphosphate, superabsorbent polymer insert ignore into journalissuearticles values(SP);, and chitosan insert ignore into journalissuearticles values(CH);. The results showed a significant effect of pelleting on yield, physiological, and qualitative traits. The highest fresh and dry tuber weight belonged to SS + ZE treatment, which showed 50.6 and 49.0% increase compared to the control treatment insert ignore into journalissuearticles values(without pelleting);, respectively. Pelleting minitubers by ZE + SS had the highest fresh tuber and biological yield insert ignore into journalissuearticles values(23.6 and 28.0 ton.ha-1, respectively);, which showed an increase of 156.5% and 145.6%, compared to the no pelleting treatment. Most pelleting treatments increased the leaf proline content and activity of the antioxidant enzymes. The highest peroxidase activity and lowest catalase activity insert ignore into journalissuearticles values(16.1 and 29.6 U.mg protein-1.min, respectively); were observed in the CO+SC+CHtreatment. Co-application of ZE, SC, and SP resulted in the highestprotein, nitrate, and starch content. In addition, minituber pelleting withZE+SS+SP increased methionine content significantly by 52.94%compared to the control. In general, the co-application of triplesuperphosphate, SP, and ZE increased the tuber yield and quality traits.Finally, the use of CH with these compounds resulted in improvingphysiological characteristics.
Keywords : Antioxidant activity, Methionine amino acid, Proline, Tuber yield, Zeolite