Morning glory species interference on the development and yield of soybeans

Pagnoncelli, Fortunato De Bortoli; Trezzi, Michelangelo Müzell; Brum, Betânia; Vidal, Ribas Antônio; Portes, Alvaro; Scalcon, Everton; Machado, Aline Fernanda Perez

doi:10.1590/1678-4499.2016.338

Cited by 15 publications

(14 citation statements)

References 20 publications

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“…Carvalho et al (2014) observed that allowing I. hederifolia plants to coexist with corn crops reduced the growth of and accumulation of macronutrients by the corn plants with negative consequences for crop productivity and serious disturbances during mechanical harvesting when the weed is fully developed. In soybean, one Ipomoea plant•m −2 can reduce the yield by approximately 26%, and the negative impact of I. purpurea on soybean growth and yield is greater than that of I. grandifolia (Pagnoncelli et al, 2017). Although they possess similar characteristics, species within a genus -and in the case of morning glory, different genera -may differ in their susceptibility to an herbicide and thus may not respond uniformly to its application (Christoffoleti et al, 2006;Orzari et al, 2013;Campos et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Differential susceptibility of morning glory (Ipomoea and Merremia) species to residual herbicides and the effect of drought periods on efficacy

Ribeiro¹,

Torres²,

Ramos³

et al. 2018

Aust J Crop Sci

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The plants commonly known as morning glory belong to the genera Ipomoea and Merremia and are among the most important weeds in Brazil. Greenhouse studies were conducted in 2016/2017 to compare the susceptibility of different morning glory species-Ipomoea quamoclit, I. nil, I. hederifolia, I. triloba, Merremia aegyptia, and M. cissoides to soil-applied herbicides and to evaluate the effectiveness of these herbicides after periods of drought. In the first experiment, to evaluate the efficacy of each herbicide at pre-emergence stage, a fully randomized 6 (doses) x 6 (species) factorial experimental design with six replicates was used. The herbicides tebuthiuron (3,200; 1,600; 800; 400; 200 and 0.0 g a.i ha-1), amicarbazone (2,100; 1,050; 750; 375; 187 and 0.0 g a.i ha-1), sulfentrazone (1,200; 600; 300; 150 75 and 0.0 g a.i ha-1), mesotrione (240; 120; 60; 30; 15 and 0.0 g a.i ha-1), saflufenacil (200; 100; 50; 25; 12 and 0.0 g a.i ha-1), and imazapic (360; 180; 90; 45; 22 and 0.0 g a.i ha-1) were applied. Ipomoea hederifolia, I. nil, and I. quamoclit were most susceptible to saflufenacil; I. triloba and M. cissoides were most susceptible to tebuthiuron; and M. aegyptia was most susceptible to amicarbazone. Therefore, the best herbicide treatment depends on the species of morning glory. In the second experiment, to determine the effectiveness of herbicides after periods of drought, the treatments were arranged, for each herbicide, in a fully randomized 6 x 5 factorial design with four replicates, six species of morning glory, and five sowing times after periods of drought (0, 15, 30, 45, and 60 days after application (DAA) of the herbicides) relative to the application of the amicarbazone (1,050 g a.i ha-1), imazapic (180 g a.i ha-1), mesotrione (120 g a.i ha-1), saflufenacil (100 g a.i ha-1), sulfentrazone (600 g a.i ha-1), and tebuthiuron (1,600 g a.i ha-1). Herbicide effectiveness after periods of drought began to decrease after 15 days for saflufenacil; 30 days for imazapic, mesotrione, and tebuthiuron; 45 days for amicarbazone; and 60 days for sulfentrazone. Preemergence application of amicarbazone and sulfentrazone exhibited consistent efficacy during the drought periods, satisfactorily controlling the species of morning glory.

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Section: Introductionmentioning

confidence: 99%

Differential susceptibility of morning glory (Ipomoea and Merremia) species to residual herbicides and the effect of drought periods on efficacy

Ribeiro¹,

Torres²,

Ramos³

et al. 2018

Aust J Crop Sci

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“…It is commonly not found in the sugarcane harvest, however, it may interfere in shorter-cycle crops. According to researchers, I. purpurea plants interfered more in soybean crops than I. grandifolia plants (Pagnoncelli et al, 2017), reducing the leaf area and the dry mass of crop leaves, in addition to the fact that I. purpurea reduced the harvest efficiency and productivity of pepper (Schutte, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…In Brazil, the presence of ivyleaf morningglories infesting agricultural areas has increased over the last years, mainly for the Ipomoea hederifolia, I. quamoclit, I. grandifolia and I. nil species (Kuva et al, 2007). Areas where these species prevail have their crop productivity reduced, as observed in the presence of I. hederifolia, which reduced the productivity of culms in sugarcane by 46%, and in the presence of I. grandifolia and I. purpurea, which reduced in up to 80% the soybean productivity (Silva et al, 2009;Pagnoncelli et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Growth and Development of Ipomoea Weeds

2019

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Weeds reduce the productive potential of crops. Plants of the Ipomoea genus, besides competing for water, light, space and nutrients, create problems in crop harvests due to their volatile stems. The objective of this work was to evaluate the growth and development of five Ipomoea species. For such, Ipomoea grandifolia, Ipomoea hederifolia, Ipomoea nil, Ipomoea purpurea and Ipomoea quamoclit plants were analyzed during the summer and winter season. Five destructive and periodic growth evaluations were carried out for each study, where leaf number, leaves, stems, roots and the total biomass were analyzed. Phenological stages of the plant development were also evaluated for emergence, flowering and maturation subperiods by degree-days, totalizing five treatments, conducted in a completely randomized design with four replicates. The phenology averages were analyzed according to the Hess scale, and the growth data through nonlinear regressions. I. quamoclit and I. grandifolia obtained the highest number of leaves in the summer and the winter, respectively. I. nil obtained greater accumulation of leaf and stem dry biomass in both seasons. I. grandifolia obtained greater root development in both periods. I. quamoclit presented reduced cycle times when compared to the other species, especially I. hederifolia and I. grandifolia, which presented larger cycles. Based on the results, I. grandifolia probably shows greater interference with agricultural crops due to high root growth, high leaf production and longer cycle. Shorter-cycle species, such as I. quamoclit, when present, should require shorter residual control periods. RESUMO -A presença de plantas daninhas reduz o potencial agrícola das culturas. Plantas do gênero Ipomoea, além de competirem por água, luz, espaço e nutrientes, criam problemas na colheita de culturas devido aos seus caules volúveis. O objetivo deste trabalho foi analisar o crescimento e desenvolvimento de cinco plantas daninhas do gênero Ipomoea durante o inverno e o verão, com a hipótese de que diferentes ciclos e desenvolvimentos ajudariam no manejo das espécies. Para isso, utilizaram-se as espécies Ipomoea grandifolia, Ipomoea hederifolia, Ipomoea nil, Ipomoea purpurea e Ipomoea quamoclit. Foram realizadas cinco avaliações destrutivas e periódicas de crescimento em duas estações de crescimento, quando se analisaram o número de folhas, a massa seca de folhas, caules, raízes e total. Foram avaliadas também as etapas fenológicas de desenvolvimento das plantas para os subperíodos de emergência, florescimento e maturação através de grausdia, totalizando, para cada análise, cinco tratamentos, conduzidos em delineamento inteiramente casualizado com quatro repetições. As médias de fenologia foram analisadas segundo a escala Hess, e os dados de crescimento, através de regressões não lineares. I. quamoclit e I. grandifolia obtiveram maior número de folhas no verão e inverno, respectivamente. I. nil atingiu maior acúmulo de massa seca foliar Planta Daninha 2019; v37:e019186421 BARROSO, A.A.M., FERREIRA, P.S....

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“…They are an undesirable species for cereal and sugarcane crops, mainly due to the difficulties that they cause for mechanical harvesting (Kissmann & Groth, ; Moreira & Bragança, ). They are also among the most important weeds for soyabean crops, causing significant yield losses when not properly controlled (Pagnoncelli et al ., ). Another important aspect of the species of this genus is that they are annual, which means that all stages of their cycle occur within a year (Lorenzi, ), making control necessary before seed production to prevent dispersal.…”

Section: Introductionmentioning

confidence: 97%

Absorption, translocation and metabolism of aminocyclopyrachlor in young plants of Ipomoea purpurea and Ipomoea triloba

Silva

Mendes

et al. 2018

Weed Research

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Members of the Convolvulaceae family are known to be sensitive to aminocyclopyrachlor, although little is known about the absorption, translocation and metabolism of the herbicide in these species of weed. The aim of this study was to evaluate the absorption, translocation and metabolism of 14 C-aminocyclopyrachlor in young plants of Ipomoea purpurea and Ipomoea triloba. Assessments were performed at 3, 6, 12, 24, 48 and 72 h after treatment (HAT) for the study of absorption and translocation. Metabolism was assessed at three time points (3, 24 and 72 HAT). In terms of absorption, was observed a difference between species at the 3 and 48 HAT time points, where I. purpurea had a higher absorption of 14 C-aminocyclopyrachlor. No differences were observed between species at any other time points. Of the total absorbed herbicide, 90.9% for I. purpurea and 91.8% for I. triloba were detected on the treated leaf. I. purpurea presented higher translocation to the leaf above the treated leaf, while I. triloba showed higher translocation to the lower leaves and roots. No increase in absorption of 14 C-aminocyclopyrachlor was observed above 24 HAT for I. purpurea and above 6 HAT for I. triloba, and translocation was low (<1%) for both species in all plant parts. This suggests that post-emergence application of aminocyclopyrachlor cannot be effective for the control of I. purpurea and I. triloba and alternative approaches are required. Nevertheless, no 14 C-aminocyclopyrachlor metabolites were observed in the studied plants, which indicated sensitivity in I. purpurea and I. triloba to the herbicide.

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Morning glory species interference on the development and yield of soybeans

Cited by 15 publications

References 20 publications

Differential susceptibility of morning glory (Ipomoea and Merremia) species to residual herbicides and the effect of drought periods on efficacy

Differential susceptibility of morning glory (Ipomoea and Merremia) species to residual herbicides and the effect of drought periods on efficacy

Growth and Development of Ipomoea Weeds

Absorption, translocation and metabolism of aminocyclopyrachlor in young plants of Ipomoea purpurea and Ipomoea triloba

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