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Comparison of the effects of trifluralin, atrazine, and oxadiazon herbicides with mulch covers on weed control in garden roses
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Amir Arabi    , Asghar Hosseininia * |
| Agricultural Research, Education and Extension Organization (AREEO) |
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Abstract: (108 Views) |
Rose (Rosa hybrida L.) from the Rosaceae family is important among cut and garden flowers in the world. With the production of more than 25,903,2744 roses per year, roses rank second in the amount of production in Iran. One of the most important obstacles in the stages of growing rose plants is various types of weeds. Therefore, the current research was conducted to evaluate and compare the effects of pre-planting, and post-planting herbicides and physical methods in the form of complete randomized blocks. Fifteen-centimeter rose cuttings of Rosa hybrida ‘Ilona’ were planted and rooted at the end of the autumn season in a greenhouse and in a sandy bed, and they were planted in separate plots at the beginning of spring. The treatments of pre-planting herbicides are trifluralin (Treflan® 48% EC) with a concentration of 1.5 and 3 liters per hectare, atrazin (Gesaprim® 80% WP) with a concentration of 1 and 3 kilograms per hectare, and post-emergence herbicides oxadiazon (Ronstar® 12% EC) with a concentration of 1.5 and 2.5 liters per hectare, bentazon (Basagran® 48% SL) with a concentration of 2 and 3 liters per hectare. Physical control treatments were black plastic mulch, wood chip mulch, and wheat stubble mulch, and the control treatment was without using the above two groups. Variance analysis of the effects of different treatments showed that herbicide and mulching treatments were significant in comparison with the control treatment. The results showed that the treatments of cover mulches reduced the weight and dry weight of weeds to a minimum in comparison with all treatments. Pre-emergence chemical herbicide treatments of trifluralin and atrazine in roses reduced the number of weeds but caused the most plant burns in roses. The post-emergence herbicides oxadiazone and bentazone increased the height of the flower, and the canopy of the flower bush and reduced the density of weeds after mulching. The mulch of wheat stubble and wood chips had the highest height and canopy of the rose bush and the lowest amount of dry weight, the number of weeds, and the lowest number of burned plants. Therefore, it is recommended to use different types of cover mulches in combination with herbicides in the outbreak of rose weeds.
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| Keywords: Rose, Herbicide, Weed, Cover mulches |
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Full-Text [PDF 598 kb]
(29 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2022/10/10 | Accepted: 2023/04/24 | Published: 2024/10/25
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