Response of yield and some physiological traits of peanut (Arachis hypogaea L.) to interaction effect of different levels of sulfur and zinc

Subject Areas : Environmental ecology

Ziba Shokri ¹ ( Department of Agronomy and Plant Breeding, Lahijan Branch, Islamic Azad University, Lahijan, Iran )
majid ashouri ² ( Department of Agronomy and Plant Breeding, Lahijan Branch, Islamic Azad University, Lahijan, Iran )
Hamidreza Dorodian ³ ( Department of Agronomy and Plant Breeding, Lahijan Branch, Islamic Azad University, Lahijan, Iran. )
Naser Mohammadian Roshan ⁴ ( Department of Agronomy and Plant Breeding, Lahijan Branch, Islamic Azad University, Lahijan, Iran )
Seyed Mostafa Sadeghi ⁵ ( Department of Agronomy and Plant Breeding, Lahijan Branch, Islamic Azad University, Lahijan, Iran )

Received: 2021-12-18 Accepted : 2022-02-18 Published : 2023-05-22

Keywords: "Grain yield", "Protein", "Oil", "pod yield", "Zinc spraying",

Abstract :

Peanut is one of the most important plants in the legume family and are rich in oil and protein. In order to investigate the effect of different levels of sulfur fertilizer (S) and foliar application of zinc (Zn) on the yield and concentration of oil and protein, a factorial experiment was conducted in a randomized complete block design with three replications for two year (2019 and 2020) at Astana-Ashrafieh city, Gilan province. The studied factors were included S fertilizer (from gypsum source) at four levels (0, 20, 40 and 60 kg ha-1) and Zn fertilizer (from zinc chelate source) at three levels (0, 1000 and 2000 ppm). The results showed that the interaction of S and Zn fertilizers had a significant effect on pod yield, grain yield, number of grains and pods, protein and oil concentration. Mean comparison of the studied traits also showed the highest pod yield (156 g plant-1) in the treatment of 40 kg S + 1000 ppm Zn, while the highest grain yield (92.3 g plant-1) in the treatment of 60 kg S + 2000 ppm Zn was obtained. The highest weight of 100 grains (1283.6 g) belonged to the treatment of non-using of S + 1000 ppm Zn. The highest protein concentration (17.94%) was observed from treatment of non-using of S + 2000 ppm Zn, and oil concentration (46.09%) in sulfur fertilizer treatment of 60 kg S + 1000 ppm Zn. Based on the results of this experiment, it can be stated that the simultaneous application of sulfur fertilizer and zinc foliar application significantly increases grain yield and improves yield-related traits in the peanut and it can be recommended for the climatic conditions of Gilan.