Henz Neto, Otilo Daniel Y Toso, Janaíne Oliveira Y Galon, Leandro Y Muller, Caroline Y Forte, César Tiago Y Brunetto, Leonardo Y Giacomini, João Paulo Y Perin, Gismael Francisco (2023) Competitive ability of common bean cultivars in the presence of Urochloa plantaginea. Revista de Ciencias Agrícolas, 40 (2). ISSN 2256-2273
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Weeds are the main constraints tohigh bean productivity. Here, we aimed to investigate the competitive ability of black type bean cultivars BRS Campeiro and SCS Predileto in coexistence with alexandergrass,Urochloaplataginea. The experimental design employed a replacement series arrangement, and the experiments were conducted in a greenhouse using a randomized block design with four replicates. Once the appropriate plant density was determined, the experiments proceeded with the following ratios of bean to U. platagineaplants per pot: 20:00, 15:5, 10:10, 5:15, and 0:20. Fifty-five days after the emergenceof the plants, physiological and morphological traits were analyzed. Diagrams were made to analyze the relative productivity (RP),total relative productivity(TRP),and the competitiveness indices. Based on RP and TRP, a similar competitive mechanism for environmental resources was observed for both bean cultivarsin the presence of U. plataginea. Variables such as leaf area, dry matter, stem diameter,andplant height of the bean cultivarswere negatively affected by U. plataginea, indicating a superior competitive ability for environmental resources. However, considering only the 10:10 plants per plotratio,beans showedhigher relative growth than U. plataginea, represented by relative competition indices, relative clustering coefficients,and aggressiveness. Intraspecific competition was found to be more harmful than interspecific competition for both crop and weed species.
| Tipo de Elemento: | Artículo |
|---|---|
| Palabras Clave: | Competitiveness indices, photosynthesis, Phaseolus vulgaris, plant competition |
| Asunto: | S Agricultura > S Agriculture (General) |
| Division: | Revistas > Revista de Ciencias Agrícolas |
| Depósito de Usuario: | FACIA Fac. Ciencias Agrícolas Udenar |
| Fecha Deposito: | 23 Nov 2023 20:22 |
| Ultima Modificación: | 23 Nov 2023 20:22 |
| URI: | http://sired.udenar.edu.co/id/eprint/10261 |
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