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VOL. 10, ISSUE 11 (2025)
Allelopathic activity of rapeseed leaf residues exposed to ultraviolet radiation on two soybean varieties
Authors
Nassar Ghani Sabri, Alaa Hussein Ali
Abstract
The study was conducted in a greenhouse at the
University of Mosul to investigate the effects of irradiated and non-irradiated
plant residues on rapeseed leaves, using ultraviolet rays (200-280 nm) at
varying quantities (0, 10, 20 g/kg of soil). The experiment utilized a
completely randomized design (CRD) with three replicates to ensure reliable
results. The addition of irradiated and non-irradiated rapeseed leaf residues
significantly reduced growth indicators, including plant height, leaf area,
total chlorophyll, and relative water content, with decreases of 16.23%,
18.58%, 17.98%, and 19.56%, respectively, at the 20 g/kg dosage. Conversely,
these residues enhanced proline and superoxide dismutase levels, increasing by
16.62% and 103.3%, respectively, when 20 g/kg of irradiated residues were
applied. The study also noted significant differences between the Al-Shaima and
Indian soybean varieties; the Indian variety exhibited lower values in most
traits except for proline and superoxide dismutase, where it showed higher
levels compared to Al-Shaima. The interaction effects revealed that the
Al-Shaima variety had the highest values for most traits under control
conditions, while the Indian variety excelled in proline and superoxide
dismutase when treated with 20 g/kg of irradiated residues.
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Pages:59-62
How to cite this article:
Nassar Ghani Sabri, Alaa Hussein Ali "Allelopathic activity of rapeseed leaf residues exposed to ultraviolet radiation on two soybean varieties". International Journal of Botany Studies, Vol 10, Issue 11, 2025, Pages 59-62
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