Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation
Weeds are a permanent constraint on crop productivity in agriculture. Due to the importance of the effect of weeds on the crop, there has been great interest in establishing the competitive ability of each species to optimize its control. This work presents a new methodology approach to determining...
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MDPI AG
2023-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/5/1432 |
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| author | Jose L. Gonzalez-Andujar Maria J. Aguilera Rene Van Acker |
| author_facet | Jose L. Gonzalez-Andujar Maria J. Aguilera Rene Van Acker |
| author_sort | Jose L. Gonzalez-Andujar |
| collection | DOAJ |
| description | Weeds are a permanent constraint on crop productivity in agriculture. Due to the importance of the effect of weeds on the crop, there has been great interest in establishing the competitive ability of each species to optimize its control. This work presents a new methodology approach to determining the relative competitiveness of weed species based on population dynamics theory, which is applied to establish the competitiveness of <i>Papaver rhoeas</i> L. (PAP), <i>Veronica hederifolia</i> L. (VER), <i>Descurainia sophia</i> L. (DES) and <i>Fumaria</i> spp. (FUM) infesting a biennial cereal-legume rotation under conventional tillage. Data to fit the nonlinear population dynamic models were obtained from a long-term experiment (32 years) in Mediterranean drylands. The results showed asymmetric competitive interactions, and the competitive ability of weeds was crop specific. In cereals, the competitiveness ranking order was FUM > PAP > VER > DES, with strong interspecific competition; in legumes, it was VER > FUM > DES > PAP, with weak interspecific competition intensity. Overall, intraspecific competition was stronger than interspecific competition in the rotation system. The information gained in these studies can provide insights into the role of the intraspecific and interspecific competition in weed communities and help identify weed species that are relatively poor competitors in given crops. |
| first_indexed | 2024-03-11T04:00:22Z |
| format | Article |
| id | doaj.art-25e7d8e8b7a74704b35690eccbd87b48 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T04:00:22Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-25e7d8e8b7a74704b35690eccbd87b482023-11-18T00:08:17ZengMDPI AGAgronomy2073-43952023-05-01135143210.3390/agronomy13051432Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume RotationJose L. Gonzalez-Andujar0Maria J. Aguilera1Rene Van Acker2Department of Crop Protection, Institute for Sustainable Agriculture (CSIC), 14004 Cordoba, SpainDepartamento de Física Aplicada, Universidad de Córdoba, 14014 Cordoba, SpainDepartment of Plant Agriculture, Ontario Agricultural College (OAC), University of Guelph, Guelph, ON N1G 2W1, CanadaWeeds are a permanent constraint on crop productivity in agriculture. Due to the importance of the effect of weeds on the crop, there has been great interest in establishing the competitive ability of each species to optimize its control. This work presents a new methodology approach to determining the relative competitiveness of weed species based on population dynamics theory, which is applied to establish the competitiveness of <i>Papaver rhoeas</i> L. (PAP), <i>Veronica hederifolia</i> L. (VER), <i>Descurainia sophia</i> L. (DES) and <i>Fumaria</i> spp. (FUM) infesting a biennial cereal-legume rotation under conventional tillage. Data to fit the nonlinear population dynamic models were obtained from a long-term experiment (32 years) in Mediterranean drylands. The results showed asymmetric competitive interactions, and the competitive ability of weeds was crop specific. In cereals, the competitiveness ranking order was FUM > PAP > VER > DES, with strong interspecific competition; in legumes, it was VER > FUM > DES > PAP, with weak interspecific competition intensity. Overall, intraspecific competition was stronger than interspecific competition in the rotation system. The information gained in these studies can provide insights into the role of the intraspecific and interspecific competition in weed communities and help identify weed species that are relatively poor competitors in given crops.https://www.mdpi.com/2073-4395/13/5/1432intraspecific and interspecific competitionvetchwheat<i>Papaver rhoeas</i><i>Veronica hederifolia</i><i>Descurainia sophia</i> |
| spellingShingle | Jose L. Gonzalez-Andujar Maria J. Aguilera Rene Van Acker Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation Agronomy intraspecific and interspecific competition vetch wheat <i>Papaver rhoeas</i> <i>Veronica hederifolia</i> <i>Descurainia sophia</i> |
| title | Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation |
| title_full | Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation |
| title_fullStr | Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation |
| title_full_unstemmed | Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation |
| title_short | Quantifying and Disentangling the Competition Effect of a Weed Community in a Long-Term Biennial Cereal-Legume Rotation |
| title_sort | quantifying and disentangling the competition effect of a weed community in a long term biennial cereal legume rotation |
| topic | intraspecific and interspecific competition vetch wheat <i>Papaver rhoeas</i> <i>Veronica hederifolia</i> <i>Descurainia sophia</i> |
| url | https://www.mdpi.com/2073-4395/13/5/1432 |
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