University of Tehran perss Journal of Crops Improvement 2008-8337 26 1 2024 03 13 The Foliar Application Effect of Bacterial Herbicides and Plants’ Aqueous Extracts on the Morphological Characteristics and Starch Content of Rice and Barnyard Grass (Echinochloa crus-galli) The Foliar Application Effect of Bacterial Herbicides and Plants’ Aqueous Extracts on the Morphological Characteristics and Starch Content of Rice and Barnyard Grass (Echinochloa crus-galli) 1 16 89683 10.22059/jci.2022.342810.2706 FA Musa Ebrahimpour Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Varamin. Iran. E-mail: ebrahimpor@iauvaramin.ac.ir Pourang Kasraie Corresponding Author, Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Varamin. Iran. E-mail: kasraie@iauvaramin.ac.ir 0000-0002-1626-0486 Hamidreza Larijani Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Varamin, Iran. E-mail: larijani@iauvaramin.ac.ir Hamidreza Tohidi Moghadam Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Varamin, Iran. E-mail: tohidi@iauvaramin.ac.ir 0000-0002-9759-9886 Sahar Honarmand Jahromi Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Varamin-Pishva Branch, Varamin, Iran. E-mail: sahar_hj2@iauvaramin.ac.ir Journal Article 2022 05 09 Objective: The purpose of this experiment was to investigate the effect of foliar spraying of bacterial herbicides and aqueous extracts of plants on the morphological characteristics and starch of barnyard grass weed and rice.Methods: This experiment was conducted as split factorial based on a randomized complete block design cityAmol with three replications in the two cropping years of 2018 and 2019. Factors included the foliar application of aqueous extracts plants and surfactant of sorghum, broccoli, nettle, eucalyptus, elder-berry, Streptomyces sp-albos containing thaxtomin, Xanthomonas campestris bacteria and control as the main factor, the concentration of the extract was zero, 5, 10 and 15 per thousand as a subfactor and the plant species of rice were Tarom cultivar and barnyard grass weed as a sub-sub factor.Results: By extracts foliar application, barnyard grass seed yield and biological yield decreased and the seed starch percent increased. Rice seed yield in the use of 5 per thousand broccoli extract and 5 per thousand Streptomyces sp-albos was not significantly different from the control. By increasing the concentration of the extract, seed yield and biological yield of rice and barnyard grass showed a further decrease. The lowest seed yield in rice at 3.16 tons/ha was related to elder-berry extract and in barnyard grass 0.68 and 0.61 tons/ha was related to nettle and elder-berry extract.Conclusion: According to the obtained results, Allelopathy and plant pathogens can be one of the basic ways to control weeds in a sustainable agricultural system. Objective: The purpose of this experiment was to investigate the effect of foliar spraying of bacterial herbicides and aqueous extracts of plants on the morphological characteristics and starch of barnyard grass weed and rice.Methods: This experiment was conducted as split factorial based on a randomized complete block design cityAmol with three replications in the two cropping years of 2018 and 2019. Factors included the foliar application of aqueous extracts plants and surfactant of sorghum, broccoli, nettle, eucalyptus, elder-berry, Streptomyces sp-albos containing thaxtomin, Xanthomonas campestris bacteria and control as the main factor, the concentration of the extract was zero, 5, 10 and 15 per thousand as a subfactor and the plant species of rice were Tarom cultivar and barnyard grass weed as a sub-sub factor.Results: By extracts foliar application, barnyard grass seed yield and biological yield decreased and the seed starch percent increased. Rice seed yield in the use of 5 per thousand broccoli extract and 5 per thousand Streptomyces sp-albos was not significantly different from the control. By increasing the concentration of the extract, seed yield and biological yield of rice and barnyard grass showed a further decrease. The lowest seed yield in rice at 3.16 tons/ha was related to elder-berry extract and in barnyard grass 0.68 and 0.61 tons/ha was related to nettle and elder-berry extract.Conclusion: According to the obtained results, Allelopathy and plant pathogens can be one of the basic ways to control weeds in a sustainable agricultural system. https://jci.ut.ac.ir/article_89683_948aaaf9c6ffc5ae7577b65dc6119848.pdf