Document Type : Research Paper
Authors
- musa Ebrahimpour 1
- Pourang Kasraie 2
- Hamidreza Larijani 2
- Hamidreza Tohidi moghadam 2
- Sahar Honarmand Jahromi 3
1 PhD Student. Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Iran.
2 Assistant Professor, Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Varamin-Pishva Branch, Iran.
3 Associated professor, Department of Microbiology, School of Biological Sciences, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran.
Abstract
In order to investigate the foliar application of bacterial herbicides and aqueous extracts of plants on morphological characteristics and starch of rice and barnyard grass weed, an 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 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 sub factor and the plant species of rice were Tarom cultivar and barnyard grass weed as a sub-sub factor. By extracts foliar application, barnyard grass seed yield and biological yield decreased and the seed starch percent increased. Rice seed yield in the using of 5 per thousand of broccoli extract and 5 per thousand of Streptomyces sp-albos has 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 decreasing, the most effect was obtained in 15 per thousand extracts. In rice, biological yield in sorghum, broccoli, eucalyptus and Streptomyces sp-albos extracts were in a statistical group with control treatment. The lowest seed yield in rice at 3.16 ton/ha was related to elder-berry extract and in barnyard grass at 0.68 and 0.61 ton/ha was related to nettle and elder-berry extract. According to the obtained results,
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