Rendimento de grãos de feijão e nível de dano econômico sob dois períodos de competição com Euphorbia heterophylla

Machado, Aline Fernanda Perez; Trezzi, Michelangelo Müzell; Vidal, Ribas Antônio; Patel, Felipe; Cieslik, Lucas Fernando; Debastiani, Fernando

doi:10.1590/s0100-83582015000100005

Cited by 13 publications

(17 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results found by Parreira et al (2014) corroborates this study, which has observed that the bean cultivars with the semi-erect and erect growth habits, respectively, from the types II were the most competitive with the infesting community of weeds, when compared to bean cultivars type III, since these promote a bigger ground coverage, for they are more branched and prostrate. Machado et al (2015), in evaluating the bean grain efficiency, IPR Tiziu cultivar, and the economic threshold level under two competition periods with Euphorbia heterophylla, stated that in all simulations the ETL was low: smaller than 3.3 plants m -2 . In all cultivars' average, and comparing the smaller and the bigger grain productivity, a difference in the ETL in the order of 50% was observed ( Figure 5).…”

Section: Resultsmentioning

confidence: 88%

Interference and Economic Threshold Level for Control of Beggartick on Bean Cultivars

et al. 2016

View full text Add to dashboard Cite

-The aim of the study was to assess the interference and determine the economic threshold level of beggartick damage on bean crops. Treatments consisted of bean cultivars (IPR Uirapuru, BRS Supremo, BRS Campeiro, Fepagro 26, BRS Esplendor and IPR Tuiuiú) submitted to competition with ten beggartick populations. We evaluated plant population, leaf area, ground cover and shoot dry mass of beggartick. Dry mass of shoots of beggartick fitted better to the hyperbolic model, and grain yield losses due to beggartick interference were estimated satisfactorily by this model. BRS Esplendor and IPR Tuiuiú were more competitive than the others in the presence of beggartick. Sowing of BRS Esplendor, IPR Tuiuiú and Fepagro 26 increases the level of economic damage, justifying the adoption of control measures only for higher densities of beggartick. Increase in grain yield, commercial price of beans, herbicide efficiency and reduction in control cost decrease the threshold level for weed control, justifying application of control measures for lower densities of beggartick. Keywords: Phaseolus vulgaris, Bidens pilosa, interference. RESUMO -Objetivou-se com este trabalho avaliar a interferência e determinar o nível de dano econômico de picão-preto infestante da cultura do feijão. Os tratamentos foram compostos por cultivares de feijão (IPR Uirapuru, BRS Supremo, BRS Campeiro, Fepagro 26, BRS Esplendor e IPR

show abstract

Section: Resultsmentioning

confidence: 88%

Interference and Economic Threshold Level for Control of Beggartick on Bean Cultivars

et al. 2016

View full text Add to dashboard Cite

show abstract

“…For dry bean, at each volunteer corn plant per square meter, the reduction on dry bean yield ranged from 6.5 at 19.3% (Sbatella et al, 2016). The yield loss from volunteer corn in this study is substantially higher than level of yield loss from weeds such as Euphorbia heterophylla (Machado et al, 2015) and Bidens pilosa (Galon et al, 2016). According to these authors, the values of i were 5.5 and 2.4% for E. heterophylla when the weed emerged seven days before and simultaneously with the bean, respectively, and while to B. pilosa the values of i ranged from 3.4 to 12.8%.…”

Section: Resultsmentioning

confidence: 56%

“…Previous studies have shown different threshold level of Euphorbia heterophylla and Bidens pilosa in bean crop (Machado et al, 2015;Galon et al, 2016), which can reduce crop grain yield in 60%. However, there is little information on yield losses and ET for volunteer corn on bean.…”

Section: Introductionmentioning

confidence: 98%

Bean yield loss in response to volunteer corn

Silva

Aguiar

Basso

et al. 2019

Agraria

View full text Add to dashboard Cite

Volunteer corn can become a weed where beans are grown in succession to corn and there is little information on yield losses and economic threshold for volunteer corn on bean. The objective was to evaluate the effect of volunteer corn density and emergence timing on bean yield and economic threshold. The volunteer corn was planting at 0, 0.5, 1, 2, 4, 8 and 12 plants m -2 in two relatives emergence timing on bean crop (at bean emergence and seven days after bean emergence). The competitive effects on bean yield was high when volunteer corn emerge at bean emergence than late emergence. When volunteer corn emerges at early timing, the yield bean was reduced between 19.6 and 35.5% at one volunteer corn m -2 , while for late emergence of volunteer corn, the yield losses ranged from 11.1 and 19.7%. The bean yield had highest impact on economic threshold, indicating low corn densities to justify the control. The increase of grain yield, bean price, herbicide efficiency and reduction in control costs decreased the economic threshold of volunteer corn on bean. The volunteer corn shows high interference potential on bean. The early timing emergence and increase of density of volunteer corn growing with bean causes highest yield losses. Perda de rendimento de feijão em resposta ao milho voluntário RESUMO: O milho voluntário se tornou uma planta daninha no feijão em sucessão ao milho e há poucas informações sobre a perda de rendimento e os níveis de danos econômicos desta planta sobre o feijão. O objetivo foi avaliar os efeitos da densidade e época de emergência do milho voluntário sobre o rendimento e nível de dano econômico no feijão. O milho voluntário foi semeado em 0, 0.5, 1, 2, 4, 8 e 12 plantas m -2 em duas épocas de emergência relativas ao feijão (na emergência do feijão e sete dias após emergência do feijão). A emergência precoce do milho voluntário causa maiores efeitos negativos sobre o feijão comparado com emergência tardia. A emergência precoce de uma planta de milho voluntário reduz entre 19,6 a 35,5% do rendimento do feijão, enquanto que a emergência tardia reduz entre 11,1 a 19,7%. A produtividade do feijão teve alto impacto sobre o nível de dano econômico, indicando que o controle se justifica em baixas densidades. Incrementos em rendimento de grãos, preço do feijão, eficiência do herbicida e redução nos custos de controle, diminuíram os níveis de dano do milho voluntário sobre o feijão. O milho voluntário apresenta alto potencial de interferência sobre o feijão. A emergência precoce do milho voluntário e o aumento da densidade causam altas perdas no rendimento da cultura. Palavras-chave: nível de dano; época de emergência; interferência; Phaseolus vulgaris; Zea maysBean yield loss in response to volunteer corn Rev. Bras.

show abstract

“…This parameter allows the comparison of the maximum yield losses among cultivars of a particular crop (Westendorff et al, 2014;Machado et al, 2015). This parameter was lower (76.17) for cultivar SP801816, showing, once again, the least yield loss of this cultivar when in competition with B. brizantha; other cultivars presented similar values for this parameter (Table 1).…”

Section: Resultsmentioning

confidence: 92%

“…In order to increase yield from 76 to 114 ton ha as competition with weeds (Westendorff et al, 2014;Machado et al, 2015). The low ETL found for sugarcane cultivation is due to the high yield of the crop, in which a yield loss of less than 4% (considering intermediate values) inflicts economic damage that justifies weed control.…”

Section: Sp801816 According Tomentioning

confidence: 99%

Economic Threshold Levels for Signal Grass Control in Sugarcane Cultivars

et al. 2016

View full text Add to dashboard Cite

-Weed management in sugarcane fields must be performed rationally, taking into consideration the competitive ability of cultivars and weeds, to allow for reductions in control costs and herbicide use. In this study, an evaluation was made of the interference of populations of Brachiaria brizantha in sugarcane cultivars, with the objective of estimating the economic threshold level of B. brizantha in competition with the cultivars RB72454, RB867515 and SP801816. For this purpose, an experiment was conducted under field conditions, where the cultivars coexisted with different weed densities. Considering the average values of the variables used for calculations, an economic threshold level was achieved with a population of 0.33, 0.46 and 0.66 plants m -2 of B. brizantha for cultivars RB867515, RB72454 and SP801816, respectively. Keywords:Brachiaria brizantha, RB72454, RB867515; SP801816, Saccharum spp. RESUMO -O manejo das plantas daninhas nos canaviais deve ser realizado de forma racional, levando em consideração a habilidade competitiva dos cultivares e das plantas daninhas, podendo ser reduzido o custo de controle e o uso de herbicidas. Neste trabalho foi avaliada a interferência de populações de Brachiaria brizantha em cultivares de cana-de-açúcar, tendo como objetivo estimar o nível de dano econômico da espécie daninha em competição com os cultivares

show abstract

Rendimento de grãos de feijão e nível de dano econômico sob dois períodos de competição com Euphorbia heterophylla

Cited by 13 publications

References 14 publications

Interference and Economic Threshold Level for Control of Beggartick on Bean Cultivars

Interference and Economic Threshold Level for Control of Beggartick on Bean Cultivars

Bean yield loss in response to volunteer corn

Economic Threshold Levels for Signal Grass Control in Sugarcane Cultivars

Contact Info

Product

Resources

About