Allelopathic effect of sunflower residues on some soil properties and growth parameters of wheat, bean and flax crops

Abstract

Allelopathic effects of the sunflower verities Helianthus annuus residues were evaluated on some soil properties and their potential against growth parameters of the proposed successive crops Wheat Triticum aestivumL., Broad Bean Vicia fabe L. and Flax Linum UstatissmimL. Sunflower plants were chopped and incorporated with field soil after getting seed, and then successive crops were cultivated. The sunflower residues have reinforced the soil with the macronutrients considered essential for the germination of any crop. The soil organic matter content and the percentage of organic carbon in the ground were increased. Significant suppression of broad bean and flax crops was observed, while the sunflower residues did not affect wheat growth. The results obtained showed that broad bean and flax crops are not recommended to grow after the sunflower crop to avoid losses due to the negative allelopathic potential of these crops. Sunflower residue incorporation may provide multidimensional benefits for better weed control, enhanced soil health, and higher seed yield of wheat. Keywords: Allelopathic effect; Sunflower residues; Succssesive crops. Crop injury symptoms

Total Phenolic Exudation and Allelopathic Potential of Sunflower Residues as Sustainable Weed Management

“…The residual suppression effect of sunflowers plants also persisted in the next crop for up to 75 days. Another field experiment indicated that sunflower residues incorporated into the field soil significantly inhibited the total number and biomass of weeds growing in the wheat field [20]. The best allelopathic effects of the three sunflower genotypes based on the current study were observed when the wheat crop was cultivated in the same area as a successive crop as compared with the other crops; broad bean and flax.…”

Allelopathic effect of aqueous extracts of common sunflower on seed germination and growth of field pea

“…Sunflower is an allelopathic plant which possesses many chemical compounds that can actively influence the growth of surrounding plants (Debaeke et al, 2021;Nafees et al, 2021a;Flayyih, Almarie, 2022). These chemical compounds known as allelochemicals act through direct interference with physiological functions of receptor plants such as seed germination, root growth, and shoot growth (Kupidłowska et al, 2006;Oliwa et al, 2017;Lalchand et al, 2021;Okrushko, 2022).…”

“…It was investigated that extracts of sunflower reduce seed germination and seedling growth of many successive plants (Bashir et al, 2017;Ullah et al, 2017;Sarvadamana et al, 2019;Ravlić et al, 2022). Sunflower residues negatively affect plant development and nutrient accumulation in some plants (Gawronska et al, 2007;Morais et al, 2014;Flayyih, Almarie, 2022).…”

“…The allelopathic effect of sunflower growing in their habitual growing regions has been investigated in the controlled conditions and field experiments (Sarvadamana et al, 2019;Pula et al, 2020;Nafees et al, 2021a;Flayyih, Almarie, 2022). Sunflower contains allelochemicals which are available in the roots, stems and leaves (Sharma, Satsangi, 2013;Ravlić et al, 2022).…”

The Allelopathic Activity of Aqueous Extracts of Helianthus annuus L., Grown in Boreal Conditions, on Germination, Development, and Physiological Indices of Pisum sativum L.

“…One reason for this may be allelochemical inhibition. Allelochemicals diminish nutrients and water absorption by roots [29] and suppress photosynthesis and respiration [3,30,31].…”