Suppressing Impact of Avena fatua and Phlaris minor on the Growth and Yield in Wheat

Sarwar, Muhammad Tariq; Ali, Anser; Maqbool, Mehwish; Ahmad, Muhammad Irfan; Mahmood, Rashid; Ul, Tanveer; Haq,; Khan, Dera Ghazi

doi:10.3923/pjn.2013.912.916

Cited by 4 publications

(1 citation statement)

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“…Major weed species causing such destructive losses to major crops in different regions include carrot grass (Parthenium hysterophorus), canary grass (Phalaris minor), wild mustard (Sinapis arvensis), wild spinach (Chenopodium album), milk thistle (Silybum marianum), nut grass (Cyperus rotundus L.), small flowered nut sedge (Cyperus difformis L.), jungle rice (Echinochloa colona L.), burclover (Medicago denticulata), toothed dock (Rumex dentatus), wild oat (Avena fatua), and Italian ryegrass (Lolium spp.) (Tanveer et al, 2003;Khan et al, 2007;Shabbir and Bajwa, 2007;Rajput et al, 2008;Sarwar et al, 2013;Iqbal et al, 2017;Tahira and Khan, 2017). Among these, S. arvensis is specifically known to prevail abundantly in wheat (Gherekhloo et al, 2018) with a density of approximately 40%, reducing ∼43% grain yield (Dhima and Eleftherohorinos, 2005;Behdarvand et al, 2013;Erman et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bioherbicidal Activity and Metabolic Profiling of Potent Allelopathic Plant Fractions Against Major Weeds of Wheat—Way Forward to Lower the Risk of Synthetic Herbicides

et al. 2021

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The productivity of major field crops is highly compromised due to weed infestation. Inefficient weed management practices and undue and excessive use of chemical herbicides have drastically contaminated the environment and human health, in addition to resistance development in weed species. Therefore, utilization of allelopathic plants to explore phytochemicals as potent organic alternatives to such chemical herbicides has become indispensable. The current study evaluates the comparative bio-herbicidal potential of methanolic extracts of castor (Ricinus communis), artemisia (Artemisia santolinifolia), wheat (Triticum aestivum), and sorghum (Sorghum bicolor) to suppress growth of major weeds, i.e., wild mustard (Sinapis arvensis), Italian ryegrass (Lolium multiflorum), and carrot grass (Parthenium hysterophorus). The results demonstrated a concentration-dependent effect on weeds’ growth. Overall, in vitro seed germination was reduced from 60 to 100% in response to 5% (w/v) extract concentration. Significant reduction in radicle length, hypocotyl length, and fresh biomass of the weeds was also observed. A strong inhibitory effect was seen in in vivo pot experiments, revealing that application of 10–20% methanolic extracts induced permanent wilting and substantial reduction in the chlorophyll content of weeds along with 20–80% increase in oxidative stress. Artemisia showed the most significant allelopathic effect, on account of highest phenolic and flavonoid contents, followed by castor, wheat, and sorghum, against S. arvensis, L. multiflorum, and P. hysterophorus, respectively. Phytochemical analysis, through high-performance liquid chromatography (HPLC), also exhibited a correlation between extract’s phytotoxicity and their antioxidant potential due to their major constituents (rutin, quercetin, catechin, gallic acid, vanillic acid, syringic acid, ferulic acid, p-hydroxy benzoic acid, p-coumaric acid, and sinapic acid), among the total of 13 identified in methanolic fractions. Comprehensive profiling of allelochemicals with liquid chromatography–mass spectrometry (LC-MS) determined 120, 113, 90, and 50 derivates of phenolic acids, flavonoids, and alkaloids, reported for the first time through this study, demonstrating significant allelopathic potential of the targeted plant fractions, which can be explored further to develop a sustainable bio-herbicidal formulation.

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