AI Article Synopsis
- The study examined how different growth stages (vegetative, flowering, and fruiting) of fenugreek affect their chemical make-up and impact on lettuce germination and seedling growth.
- Aqueous and organic extracts from fenugreek significantly hindered lettuce germination and growth, with extracts from the vegetative stage being the most harmful.
- LC-MS/MS analysis identified varying flavonol glycosides in the plants, indicating that the chemical composition changes with developmental stages, highlighting the importance of studying these changes for understanding allelochemical production.
Article Abstract
This study was conducted to evaluate the influence of developmental stages (vegetative, flowering and fruiting) of mixoploid fenugreek aerial parts on their chemical composition and allelopathic potential, assessed on lettuce germination and seedling growth. Aqueous and organic extracts significantly delayed germination, reduced its rate and affected seedling growth. Ethyl acetate and methanol extracts of aerial parts harvested at vegetative stage were the most toxic for lettuce germination and seedling growth, respectively. LC-MS/MS analysis of T. foenum-graecum aerial parts methanolic extract showed nine different flavonol glycosides (quercetin and kaempferol glucosides). Chemical composition of aerial parts differed with the developmental stage; indeed, at the vegetative and fruiting stages, analysis revealed the presence of 9 compounds as compared to only 6 compounds at the flowering stage. Thus, it is necessary to follow the qualitative changes of allelochemicals production at different developmental stages to identify the most productive one.
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| http://dx.doi.org/10.1016/j.foodchem.2013.10.040 | DOI Listing |
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