University of Tabriz Journal of Agricultural Science and Sustainable Production 2476-4310 33 1 2023 04 21 The effect of biofertilizer application and different levels of drought stress on yield and forage quality of pea (pisum sativum L.) Emaraz cultivar The effect of biofertilizer application and different levels of drought stress on yield and forage quality of pea (pisum sativum L.) Emaraz cultivar 85 96 16187 10.22034/saps.2022.50968.2856 FA Mehdi Ghasembaglou College of Agriculture and Natural Resources, Department of Agronomy and Plant Breeding, University of Mohaghegh Ardabili Mohammad Sedghi University of Mohaghegh Ardabili, Faculty of Agriculture and Natural Resources, Department of Plant Production and Genetics. University of MohagheghArdabili, Ardabil. Iran. Raouf Seyed Sharifi Department of Agronomy and plant breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili. Salim Farzaneh Assistant Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardebil, Ardebil, Iran Journal Article 2022 04 04 Abstract<br />Background and Objective: <br />This study was conducted to evaluate the effect of biofertilizer application and drought stress on physiological characteristics and forage quality of pea (Pisum sativum L.). <br /><br />Materials and Methods: <br />The factorial experiment was conducted based on a randomized complete block design in the lands of Harris County, East Azerbaijan Province Experimental factors include: irrigation treatment at four levels of normal irrigation (control treatment), cessation of irrigation at the stage of seed filling, cessation of irrigation at the stage of flowering and non-irrigation and treatment of biofertilizers at eight levels of seed inoculation (treatment) Control was seed inoculation with Azotobacter, Azospirillium, Mycorrhiza, combined application of Azotobacter and Azospirillium, combined application of Azotobacter and Mycorrhiza, combined application of Azospirillium and Mycorrhiza and combined application of Azotobacter, Azospirillium and Mycorrhiza.<br />Results: The highest digestibility, ash and insoluble fibers in acidic detergent were obtained in complete irrigation and non-application of biofertilizers and the lowest in non-irrigation and combined application of three types of biofertilizers. The highest yield, soluble carbohydrates and crude protein were obtained in complete irrigation and combined application of three types of biofertilizers and the lowest in non-irrigation and non-application of biofertilizers. Drought stress reduced insoluble fibers in neutral detergent by 3.62% compared to full irrigation treatment. Abstract<br />Background and Objective: <br />This study was conducted to evaluate the effect of biofertilizer application and drought stress on physiological characteristics and forage quality of pea (Pisum sativum L.). <br /><br />Materials and Methods: <br />The factorial experiment was conducted based on a randomized complete block design in the lands of Harris County, East Azerbaijan Province Experimental factors include: irrigation treatment at four levels of normal irrigation (control treatment), cessation of irrigation at the stage of seed filling, cessation of irrigation at the stage of flowering and non-irrigation and treatment of biofertilizers at eight levels of seed inoculation (treatment) Control was seed inoculation with Azotobacter, Azospirillium, Mycorrhiza, combined application of Azotobacter and Azospirillium, combined application of Azotobacter and Mycorrhiza, combined application of Azospirillium and Mycorrhiza and combined application of Azotobacter, Azospirillium and Mycorrhiza.<br />Results: The highest digestibility, ash and insoluble fibers in acidic detergent were obtained in complete irrigation and non-application of biofertilizers and the lowest in non-irrigation and combined application of three types of biofertilizers. The highest yield, soluble carbohydrates and crude protein were obtained in complete irrigation and combined application of three types of biofertilizers and the lowest in non-irrigation and non-application of biofertilizers. Drought stress reduced insoluble fibers in neutral detergent by 3.62% compared to full irrigation treatment. https://sustainagriculture.tabrizu.ac.ir/article_16187_6eb013d0a5c23f77c89804a95a423f38.pdf