Allelopathic Potential of Sunflower Extract on Weed Control and Wheat Yield Under Subtropical Conditions
International Journal of Applied Agricultural Sciences
Volume 2, Issue 4, July 2016, Pages: 44-48
Received: Apr. 12, 2016; Accepted: Jun. 3, 2016; Published: Jun. 17, 2016
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Hasib Bin Saif, Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
Md. Nasimul Bari, Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
Md. Rafiqul Islam, Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
Md. Abiar Rahman, Department of Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
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A field experiment was conducted to evaluate the effect of sunflower plant extract on weed control and productivity of wheat. Dried and fresh sunflower plant extracts (SPE) were applied @ 5 t ha-1 and 10 t ha-1 at pre- and post-emergence of weeds in wheat plots. In addition, weed free, manual weeding and unweeded control treatments were also imposed in the experiment. Application of fresh SPE @ 10 t ha-1 at post-emergence contributed to the highest weed control efficiency, next to manual weed control treatment throughout the crop growing period. This treatment showed the highest weed control efficiency of 49.71% and 53.41% at 45 and 60 days after sowing, respectively. Application of fresh SPE @ 5 t ha-1 at post-emergence was found to be beneficial on the growth and development of wheat compared to other treatments. Apart from weed free and unweeded situations, the highest grain yield of 3.91 t ha-1 was recorded in the treatment receiving fresh SPE @ 5 t ha-1 applied at post-emergence. The study further suggested that the application of fresh sunflower plant extract @ 5 ha-1 during post-emergence might be considered as a viable alternative to traditional weed management practices under subtropical environment.
Allelopathy, Sunflower Extract, Weed Control, Wheat Yield, Subtropical Climate
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Hasib Bin Saif, Md. Nasimul Bari, Md. Rafiqul Islam, Md. Abiar Rahman, Allelopathic Potential of Sunflower Extract on Weed Control and Wheat Yield Under Subtropical Conditions, International Journal of Applied Agricultural Sciences. Vol. 2, No. 4, 2016, pp. 44-48. doi: 10.11648/j.ijaas.20160204.11
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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