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Allelopathic effect of Rapistrum rugosum L. on growth, physiological and biochemical parameters of Nigella sativa L.
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Reza Kouhestani   , Leila Ahangar * , Mehdi Zarei , Ebrahim Gholamalipour Alamdari , Ziba Avarseji |
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Abstract: (1123 Views) |
Introduction: Allopathy is a biochemical reaction in plants that, due to the addition of chemicals, uses a variety of secondary metabolites, through different methods. In certain cycles, it can have a stimulating or inhibiting effect on itself and the adjacent plant. It may even play an important role in the vegetation pattern and crop production. Therefore, the present research aimed to evaluate the allelopathic effect of different amounts of decomposed aerial parts of Rapistrum rugosum on morpho-physiological and biochemical traits of Nigella sativa,
Materials and methods: An experiment was conducted by using a completely randomized design with three replications in pot culture in the research greenhouse of the Gonbad Kavous University in 2019. For this purpose, 5 kg pots containing 0, 10, 20, 40, 80, and 160 g of R. rugosum powder were placed in the greenhouse to rot. Then, 20 seeds of H. sabdariffa were planted in each pot. R. rugosum residues were not used in the control treatment. Plant sampling was done at 4-5 leaf stage.
Results: The results showed that increasing the amount of R. rugosum residues significantly reduced the growth traits of H. sabdariffa. The lowest amount of stem length, root length, and fresh and dry weight of the plant was observed in the treatment of 160 g of R. rugosum residues. The content of chlorophyll a, b, total pigments, and peroxidase decreased with increasing the amounts of R. rugosum decomposed. However, the trend of changes in the content of catalase enzyme and proline indicated an increasing trend with increasing amounts of R. rugosum residues.
Conclusion: Overall, regarding the proof of allelopathic effect of R. rugosum weed on N. sativa, it is advised to exploit the huge biomass generated by these luxuriantly growing weeds as weedicide and antimicrobial compounds in sustainable agriculture. |
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| Keywords: Plant residues, Morphological traits, Weeds, Chlorophyll, Enzyme |
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Full-Text [PDF 657 kb]
(182 Downloads)
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Type of Study: Research |
Subject:
Ecophysiology
Received: 2024/03/16 | Accepted: 2023/09/21 | Published: 2023/09/21
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