Identification and Quantification of Allelochemicals from Selected Sweet Potato (Ipomoea batatas (L.) Lam.) Cultivars
| Autor: | Bhawna Soni, Ziming Yue, Te-Ming Paul Tseng |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology fungi food and beverages Amaranth 04 agricultural and veterinary sciences General Medicine biology.organism_classification Ipomoea 01 natural sciences chemistry.chemical_compound Horticulture chemistry Chlorogenic acid Germination Seedling 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Cultivar Weed Allelopathy 010606 plant biology & botany |
| Zdroj: | American Journal of Plant Sciences. 10:2354-2365 |
| ISSN: | 2158-2750 2158-2742 |
| DOI: | 10.4236/ajps.2019.1012163 |
| Popis: | Allelopathic compounds have the potential to inhibit the growth and development of other organisms in a diverse manner ranging from shifting nutrients and enhancing their growth to inflicting diseases. In addition, these compounds influence seedling growth and seed germination of various crops. The goal of this study was to identify and quantify different allelochemicals in various sweet potato cultivars through high-performance liquid chromatography techniques. Selected sweet potato slips (weight: 2.0 - 2.5 grams/slip) were propagated in separate glass tubes filled with 10.0 mL distilled water. Water extract from each glass tube was collected after 2, 4, and 6 weeks after transplanting (WAP) to identify and quantify allelochemical compounds by comparing their peaks with the retention time of standards. Results show that the concentration of allelochemicals in water extract was increased from 2 to 4 WAP but remained constant in the sixth week. Quantitative analysis revealed that the amount of chlorogenic acid was higher in all sweet potato cultivars compared to other allelochemicals. Some sweet potato cultivars, A5 and A39, exhibited higher allelopathy (18.28 - 19.37 ppm/slip) and reduced the height and biomass of Palmer amaranth the most due to the presence of increased concentration of combined allelochemicals, while other cultivars produced lesser allelochemicals (10.90 ppm/slip) and did not reduce the growth of the weed species. Allelopathic sweet potato cultivars high in chlorogenic acid production can effectively suppress Palmer amaranth with minimal dependence on chemicals to manage weeds and harmful pests under sustainable agricultural system. |
| Databáze: | OpenAIRE |
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