PJB-2018-6
Screening of active formulation from combined sunflower (Helianthus annuus) and neem (Azadirachta indica) aqueous extract to control growth of lesser canary
Asma Batool, Muhammad Asam Riaz, Faiza Hassan, Shakeela Irum, Shahid Iqbal, Farooq Anwar and Mubshara Saadia
Abstract
The aim of study was to find an effective way of managing growth of lesser canary grass (Phalaris minor) in wheat fields. Sixteen formulations (F1-F16) were prepared by combining the aqueous extracts of sunflower (Helianthus annuus) and neem (Azadirachta indica) in specific ratios (10-40%). Remarkable allelopathic potential was exhibited by improved growth of wheat and inhibition of the weed growth. The regulatory effects were determined on plant root and shoot lengths, free proline and total phenolic contents, and the antioxidant potential of the wheat and weed plants in pot experiment. The findings suggested ‘F3’ as the most effective formulation prepared by combining one part of aqueous extracts of Helianthus annuus with three parts of Azadirachta indica extract [S (10%) + N (30%)], as its application (10 times dilution) stimulated the shoot length of wheat and inhibited the root length of canary grass plants. So, we propose this combination as an effective allelopathic strategy to control growth of lesser canary grass in wheat fields.
To Cite this article:
Batool, A., M.A. Riaz, F. Hassan, S. Irum, S. Iqbal, F. Anwar and M. Saadia. 2019. Screening of active formulation from combined sunflower (Helianthus annuus) and neem (Azadirachta indica) aqueous extract to control growth of lesser canary grass (Phalaris minor). Pak. J. Bot., 51(3): DOI: http://dx.doi.org/10.30848/PJB2019-3(29)
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