Competitive interaction between commom black bean cultivars and Euphorbia heterophylla 1

Galon, Leandro; Forte, César Tiago; Júnior, Francisco Wilson Reichert; Trevisol, Ricardo; Perin, Gismael Francisco

doi:10.1590/1983-40632018v4851669

Cited by 5 publications

(7 citation statements)

References 21 publications

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“…It is likely that the higher LA observed in the bean cultivars (Figure 3A, B) favored a competitive advantage for the variable DM (Table 3). Other work also reported differences in competitive ability among bean cultivars infested with B. pilosa and U. plantaginea (Araújo et al, 2018) and/or with E. heterophylla (Galon et al, 2018). The difference in competitive ability of common bean cultivars is related to sowing density and cultivar choice (Lage et al, 2017;Galon et al, 2018).…”

Section: Competitiveness Indicesmentioning

confidence: 90%

“…They indicate higher deviations from the observed values than the estimated ones (Figure 3A, B), in this case there was an advantage for the growth of the crop. The greater relative growth of the bean cultivars compared to the alexandergrass could be related to the density of weed plants, since the competitive ability of weeds is reduced at lower population densities (Agostinetto et al, 2013;Galon et al, 2018). Production of LA may favor light energy capture and also promote weed shading, as a competitive defense mechanism.…”

Section: Relative Productivitiesmentioning

confidence: 99%

“…In addition, the faster germination of alexandergrass compared to bean results in a highly competitive ability, which can cause serious damage to productivity and crop quality in rice (Galon et al, 2014), maize (Frandoloso et al, 2019;Galon et al, 2019), and beans (Franceschetti et al, 2019;Galon et al, 2022). Weeds are known to compete with the crop for water, nutrients, and light, in addition to releasing allelopathic substances or even harboring insects and diseases that can significantly affect the growth and development of the bean plant, leading to a drastic reduction in productivity and grain quality (Galon et al, 2018;Franceschetti et al, 2019;Viecelli et al, 2021;Galon et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Competitive ability of common bean cultivars in the presence of Urochloa plantaginea

Neto

Toso

Galon

et al. 2023

rcia

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Weeds are the main constraints to high bean productivity. Here, we aimed to investigate the competitive ability of black type bean cultivars BRS Campeiro and SCS Predileto in coexistence with alexandergrass, Urochloa plataginea. 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. plataginea plants per pot: 20:00, 15:5, 10:10, 5:15, and 0:20. Fifty-five days after the emergence of 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 cultivars in the presence of U. plataginea. Variables such as leaf area, dry matter, stem diameter, and plant height of the bean cultivars were negatively affected by U. plataginea, indicating a superior competitive ability for environmental resources. However, considering only the 10:10 plants per plot ratio, beans showed higher 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.

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Section: Competitiveness Indicesmentioning

confidence: 90%

Section: Relative Productivitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Competitive ability of common bean cultivars in the presence of Urochloa plantaginea

Neto

Toso

Galon

et al. 2023

rcia

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“…Agricultural crops, including onions, depend on environmental factors for their growth and development. Among the environmental and edaphic factors that influence the productivity of these crops is the interference caused by weeds, which can compete for the available resources in the environment, such as water, nutrients, light and CO2 (Galon et al, 2018). Weeds appear as an obstacle in world agricultural production, causing an increase in the cost of production, reduction in yield and quality of harvested products (Renton & Chauhan, 2017).…”

Section: Introductionmentioning

confidence: 99%

Competitive Interaction between Weeds and Onion Crop

Franceschetti¹,

Galon²,

Menegat³

et al. 2019

IJAERS

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Among the factors that affect crop productivity are weeds that compete for the resources present in the environment. Then, the objective of this study was to evaluate the competitiveness of turnip and ryegrass infesting the onion crop. The experiment was conducted in a greenhouse, in a randomized complete block design, arranged in a 2x8 factorial scheme, with four replications. In factor A, were allocated the weeds (turnip and ryegrass) and in the B, were allocated populations of these species (0, 1, 2, 3, 4, 5, 6 and 7 pot-1 plants) living with an onion plant. 50 days after transplanting, were evaluated the height, stem diameter, leaf area and dry mass of the aerial part of the onion plants. For the weeds, only the dry mass of the aer ial part was determined. In face of the results, it can be observed that the onion has a low competitive capacity, being the turnip the weed more aggressive in the competition, for all evaluated variables.

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“…Currently, the problem found in soybean crops is the low efficiency in the weeds control, so that they present expressive reductions in the increase and in the development of the cultivar, as consequence occurs reduction of the grain productivity (Agostinetto et al 2009;Forte et al 2017;Galon et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Weed management in soybean using burndown herbicides associated to pre-emergent herbicides

Santin¹,

Peruzzo²,

Galon³

et al. 2019

Commun. Plant Sci.

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The soybean crop has been playing a very important role in the agribusiness worldwide, including in Brazil. Among the pests that cause major problems to the crop are the weeds, because they are responsible by the reduction of the productivity and of the grain quality. On the face of it, this work aimed to evaluate the application of burndown herbicides associated to pre-emerging herbicides to the management of the soybean weeds. The experiment was carried out in the field, in area with no soil cover with fallow during the winter, in the randomized block design, with four replicates. The treatments used were: diuron + sulfentrazone (490 + 245), [glyphosate + (diuron + sulfentrazone)-1,440 + (420 + 210)], [glyphosate + (diuron + sulfentrazone)-1,440 + (490 + 245)], glyphosate + 2,4-D (1,440 + 806), glyphosate + diclosulam (1,440 + 25.2), [glyphosate + (imazethapyr + flumioxazin)-1,440 + (100 + 50)], glyphosate + saflufenacil (1,440 + 35), [ammonium-glufosinate + (diuron + sulfentrazone)-400 + 490 + 245 g ha-1 de i.a], and two herbicide-free controls, weedy and weed-free. At the 7, 14, 21 and 28 days after the emergency of the crop (DAE) the variables were evaluated, herbicide phytotoxicity on soybean and the weeds control, Digitaria ciliaris and Urochloa plantaginea. In the soybean harvest, the number of pods per plant was determined, the number of grains per pods, the mass of a thousand grains (g) and the grain productivity (kg ha-1). The phytotoxicity caused by herbicides to the soybean it was not over to 8% in all the evaluations realized. The control of the weeds, D. ciliaris and U. plantaginea were over to 90%, highlighting the effect of the pre-emerging herbicides in the maintaining of the control until the evaluation of the 28 DAE. In general, all the treatments involving the herbicides did not cause changes in the components of soybean crop yield, being statistically equal the weed-free control higher than the weedy control. The soybean presented an increase of 859.48% in grain yield when Digitaria ciliaris and of the Urochloa plantaginea was controlled. Highlighted Conclusions 1. The control of Digitaria ciliaris and Urochloa plantaginea is more efficient with the use of pre-emerging herbicides, mainly diuron + sulfentrazone and imazethapyr + flumioxazin. 2. The toxicity of herbicides to the soybean 'NA 5909' is low, with no visual intoxication symptoms from 28 days after emergency, and do not reduce the crop grain yield. 3. Digitaria ciliaris and Urochloa plantaginea can reduce by up to 88% the soybean grain yield if not controlled. 4. The soybean grain productivity can be increased by 859% when Digitaria ciliaris and Urochloa plantaginea are controlled.

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Competitive interaction between commom black bean cultivars and Euphorbia heterophylla 1

Cited by 5 publications

References 21 publications

Competitive ability of common bean cultivars in the presence of Urochloa plantaginea

Competitive ability of common bean cultivars in the presence of Urochloa plantaginea

Competitive Interaction between Weeds and Onion Crop

Weed management in soybean using burndown herbicides associated to pre-emergent herbicides

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