Chemical Control Against Aggressive Broad Leaves Weed Ipomea sp. in Drill Seeded-rice (Oryza sativa L.)

Abd El-Naby, S. S. M. *

Department of Rice Research, Field Crop Research Institute, ARC, Giza, Egypt.

A. M. A. El-Ghandor

Department of Rice Research, Field Crop Research Institute, ARC, Giza, Egypt.

*Author to whom correspondence should be addressed.


Two field experiments were carried out at the Experimental Farm of Rice Department, Sakha Agricultural Research Station, Kafrelsheikh, Egypt throughout 2020 and 2021 summer seasons to identify an efficient chemical control program against Ipomea sp. as perennial Convolvulaceae weed in drill seeded-rice. The experimental design was split-plot with three replications. Three times of herbicidal application at 20, 30 and 40 days after sowing (DAS) were allocated randomly in main plots, while in sub-plots, six weed control treatments were randomly distributed included three single herbicides application (bentazone at rate of 1.714 kg ai ha-1, fluroxypyr at rate of 0.0952 kg ai ha-1 and bensulfuron-methyl at rate of 0.0714 kg ai ha-1) in addition to two herbicide mixtures were bentazone + fluroxypyr (1.344 kg ai ha-1 + 0.0952 kg ai ha-1) and bensulfuron + fluroxypyr (0.0714 kg ai ha-1 + 0.0952 kg ai ha-1) as compared to un-treated (weedy check) plots. Chemical control at early stage (20 DAS) achieved the best Ipomea control and recorded the lowest values of tillers number m-2, fresh and dry weights during 2020 and 2021, consequently recorded the highest rice dry matter, panicles number m-2, panicle weight and grain yield during both seasons. The results also showed that herbicide mixtures exceeded single application of herbicide in controlling Ipomea as broad leaf weed, bentazon + fluroxypyr ranked first in weed control efficiency percentage and recorded the lowest weed density m-2, fresh and dry weights of Ipomea during the two seasons of study as well as achieved the best values in rice dry matter, panicles per square meter, panicle weight and grain yield during 2020 and 2021 seasons, while the mixture of bensulfuron + fluroxypyr ranked second in this respect. The combination of bentazone + fluroxypyr sprayed at 20 DAS recorded the best Ipomea chemical control efficiency (95.4 %) and recorded the best rice grain yield (9.322 t ha-1) as an average for Giza 178 cv under drill seeded-rice conditions.

Keywords: Rice, Ipomea spp, weed, time of application, chemical control

How to Cite

Abd El-Naby, S. S. M., & El-Ghandor , A. M. A. (2024). Chemical Control Against Aggressive Broad Leaves Weed Ipomea sp. in Drill Seeded-rice (Oryza sativa L.). Asian Journal of Research in Crop Science, 9(1), 10–21.


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Baltaza AM, Dedatta SK. Weed management in rice. Weed abstract. 1992;41:495-497.

Bakare SO, Ndarubu AA, Ukwungwu MN, Ochigbo AA. Evaluation of formulated mixtures of propanil plus triclopyr for post-emergence weed control in lowland rice production. African Journal of General Agriculture. 2008;4(3):123-127.

Abd El-Naby SSM El-Ghandor AMA. Chemical control of grassy weeds in drill-seeded rice (Oryza sativa L.). Menoufia Journal of Plant Prod. 2022;(7):167 – 179.

Anwar MP, Juraimi AS, Puteh A, Selamat A, Man A, Hakim MA. Seeding method and rate influence on weed suppression in aerobic rice. Afr. J. Biotechnol., 2011;10(68):15259-15271.

Rao AN, Johnson DE, Sivaprasad B, Ladha JK, Mortimer AM. Weed management in direct seeded rice. Adv Agron. 2007;93:153-255.

Shad RA. Improving weed management in wetland rice. Progressive Farming. 1986;6(1):49-53.

Ritoine EL, Lyatuu HA, Mosha CJ, Sambai LM, Mollel SL. Chemical control of weeds in transplanted rice. In: Miscellaneous Report, Tropical Pesticides Research Institute. 1981;(993):15 pp.

PIER, Ipomoea aquatica. PIER Pacific Island Ecosystems at Risk (PIER). Honolulu, USA: HEAR, University of Hawaii; 2018. Available:http://www.

Soomro A, Soomro A. Comparative studies of different weedicides against weeds of rice crop. International Journal of Agriculture, Environment and Bioresearch. 2020;5(2):57-63.

RRTC. Recommendations for rice culture in Egypt. 2019;1-60.

Drost DC, Moody K. Effect of butachlor on echinichloa glubrescensin wet seeded rice (Oryza sativa L.) Philippines J. Weed Sci. 1982;9:44-57.

Snedecor GW, Cochran WG. Statistical methods. 6th ed., iowa state univ. press ames, USA; 1971.

Duncan DB. Multiple range and multiple F-tests. Biometrics. 1955;11:1-42.

Juraimi A, Kamal Uddin MTM, Anwar MDD, Mohamed MTM, Ismail MR, Man A. Sustainable weed management in direct seeded rice culture. Australian J. of Crop Sci. 2013;7(7):989-1002.

Avudaithai S, Veerabadran V. Effect of herbicide mixtures on the total weed spectrum in transplanted rice. Crop Res. 2000;19:6-12.

Rehman AU, Farooq M, Cheema ZA, Wahid A. Seed priming with boron improves growth and yield of fine grain aromatic rice. Plant Growth Regul. 2012;68:189- 201.

Ghosh D, Singh UP, Brahmachari K, Singh NK, Das A. An integrated approach to weed management practices in direct-seeded rice under zero-tilled rice–wheat cropping system. International Journal of Pest Management. 2016;63:37–46.

Abd El-Naby SSM, Abou El-Darag IH, El-Ghandor AMA. Integrating pre and post-emergence herbicides for controlling weeds in drill-seeded rice (Oryza sativa L.). Egyptian, J. Agric. Res. 2018;96(1):67- 81.

Kumar S, Shivani, Mishra JS, Kumar S, Kumar U, Bharati RC. Efficacy of pre- and post-emergence herbicides on complex weed flora in direct-seeded rice (Oryza sativa L.) in the eastern plains. Indian Journal of Agricultural Sciences. 2018;88(3):387–392.

Mahajan G, Chauhan BS. Weed control in dry direct-seeded rice using tank mixtures of herbicides in South Asia. Crop Protection. 2015;72:90-96.