Effect of growth-promoting bacteria, trichoderma fungus and humic acid on yield and yield components of wheat Var. Ofogh

Document Type : Research Paper

Authors

1 Department of Agronomy and Plant Breeding, Naragh branch, Islamic Azad University, Naragh, Iran

2 Department of Agronomy and Plant Breeding, Saveh branch, Islamic Azad University, Saveh, Iran

3 Department of Agricultural Sciences, Payame Noor University, I.R. of IRAN

10.22034/saps.2023.56028.3019

Abstract

This study was performed to evaluate the effect of plant growth-promoting rhizobacteria , trichoderma fungi and humic acid on the yield and physiological characteristics of wheat (Var. Ofogh) as a factorial experiment based on randomized complete block design with three factors and three replications at the research field of the Kashan during 2017-2018 growing season. The first factor was plant growth promoting rhizobacteria such as Azotobacter chroococcum + Azospirillum lipoferum + Pseudomonas putida (application and non-application), the second factor was two concentrations of trichoderma fungi (application and non-application) and three factor was humic acid soil application (0 and 200 kg. ha-1). The Results showed that plant growth-promoting bacteria, trichoderma fungus and humic acid led to an increase in plant height, chlorophyll a and b, grain yield and yield components of wheat. Growth-promoting bacteria, trichoderma and humic acid led to an increase of 43.8, 21.7 and 6% in grain yield compared to the control, respectively. The combined use of growth-promoting bacteria, trichoderma fungus and humic acid led to an increase in grain yield, yield components and harvest index compared to single application and control.The highest grain yield was obtained with the combined application of growth-promoting bacteria and trichoderma fungus amounting to 7466.7 kg per hectare and the highest harvest index was obtained with the combined application of biological fertilizers at the rate of 32.3%. In general, it is possible to obtain a significant grain yield increase in wheat with the combined application of plant growth-promoting bacteria, trichoderma and humic acid.

Keywords

Main Subjects

JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION

Articles in Press, Accepted Manuscript
Available Online from 21 October 2024

Files

Share

How to cite

Statistics