Effect of Isoproturon With and Without Adjuvants on Photosynthetic Attributes of Wheat and Its Associated Weeds
| Autor: | Adeel Shahid, Muhammad Mansoor Javaid, Hasnain Waheed, J. Nargis, Ahsan Aziz, A.U.H. Zia, A. Wasaya |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
weed control growth and yield Physiology QH301-705.5 Biomass Plant Science Photosynthesis 01 natural sciences Biochemistry gas exchange traits Phalaris minor Biology (General) Triticum aestivum L biology Crop yield Botany 04 agricultural and veterinary sciences Anagallis arvensis biology.organism_classification Weed control Agronomy fresh and dry weight QK1-989 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Grain yield Melilotus Agronomy and Crop Science 010606 plant biology & botany herbicide doses |
| Zdroj: | Planta Daninha, Vol 38 (2020) Planta Daninha v.38 2020 Planta daninha Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD) instacron:SBCPD |
| ISSN: | 0100-8358 |
| Popis: | Among various weed management strategies, chemical weed control is considered the most effective method. However, optimum dose and suitable combination of herbicide with adjuvants play a vital role in controlling weeds at an acceptable level and produce maximum crop yield. A field study was conducted to investigate the effect of post-emergence herbicide isoproturon alone or with combination of adjuvants on winter wheat and its associated weeds. The treatments were isoproturon at 175 g a.i. ha-1, 140 g a.i. ha-1 and 105 g a.i. ha-1 applied alone or with adjuvants Ad-500 or Bio-enhancer at 400 mL ha-1 each and weedy check as a control treatment. Isoproturon at 175 g a.i. ha-1 + Bio-enhancer at 400 mL ha-1 was most effective treatment for control of Melilotus indica, Anagallis arvensis, Phalaris minor and Fumaria indica as it decreased the photosynthetic activity, fresh and dry biomass of these weeds. In case of wheat, highest productive tillers, plant height, 1000-grain weight, biological and grain yield were achieved with isoproturon at 175 g a.i. ha-1 + Bio-enhancer at 400 mL ha-1. However, highest values of gas exchange parameters of wheat were observed where no herbicide was sprayed. It can be concluded that isoproturon at 175 g a.i. ha-1 + Bio-enhancer at 400 mL ha-1 might be a profitable approach to achieve optimal yield of wheat by causing the maximum suppression of these tested weeds. Moreover, the herbicide at reduced dose with adjuvants was not much effective in terms of weed control or increased yield. |
| Databáze: | OpenAIRE |
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