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Mixtures of 2,4-D and dicamba with other pesticides and their influence on appl...
Roberto, Avila Neto; Melo, Adriano Arrué; Ulguim, André da Rosa; Pedroso, Rafael Munhoz [UNESP]; Barbieri, Geovana Facco; Luchese, Eric FernandesMade available in DSpace on 2022-04-28T19:42:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Due to the evolution of resistant weeds to glyphosate, the new technologies Xtend® and Enlist® cropping systems are expected to boost the use of auxin herbicides dicamba and 2,4-D. This study examined the effects of two formulations of 2,4-D and dicamba in tank-mixtures with other pesticides on selected...
Sensory quality and physicochemical properties of cassava roots as a function o...
Tagliapietra, Bruna Lago; Zanon, Alencar Junior; Alves, Alexandre Ferigolo; Ulguim, André da Rosa; Streck, Nereu AugustoThe management practices used by farmers in cassava crops and the relationship with the sensory quality and physicochemical characteristics of cassava roots are still incipient. The objective of this work was to evaluate the productivity, sensory quality and physicochemical properties of cassava roots at harvest times and technological management levels. The study was conducted in Santa Maria, Rio Grande do Sul...
Emergence flow of weeds as the result of temperature and luminosity conditions ...
Zandoná, Renan Ricardo; Agostinetto, Dirceu; Ulguim, André da Rosa; Campos, Rogério Costa; Vargas, Andrés Antonio Monge; Silva, Jéssica Dias Gomes daLevels of weed infestation can be inferred from climate information since every species requires specific conditions for its germination process. This study aimed to evaluate weed species and their emergence flow in hilly areas, when subjected to different environmental conditions of temperature and luminosity. Two experiments were carried out in a completely randomized design with four replications. In the fir...
Adjuvant interference on spray solution properties of 2,4-D and dicamba herbici...
Avila Neto, Roberto Costa; Melo, Adriano Arrué; Ulguim, André da Rosa; Pedroso, Rafael Munhoz; Barbieri, Geovana Facco; Pigatto, Cassiano SalinSynthetic auxin herbicides constitute major alternatives for managing tough-to-kill weeds such as Ipomoea spp. Adjuvant use is known to positively affect the biological efficacy of pesticides by modifying key spraying solution and droplet properties. Determining to what extent the use of adjuvants could change spray solution parameters and affect synthetic auxin herbicides’ efficiency for Ipomoea spp. control w...
Low level resistance of wild poinsettia biotypes to glyphosate and alternative ...
Agostinetto, Dirceu; Ulguim, André da Rosa; Zandoná, Renan Ricardo; da Silva, Jéssica Dias Gomes; da Silva, Bruno Moncks; Várgas, LeandroIn the State of Rio Grande do Sul (RS), Southern Brazil, glyphosate has not been capable of controlling wild poinsettia (Euphorbia heterophylla L.) in soybean fields, thus, suggesting resistance to this herbicide. Therefore, this study aimed at evaluating sensitivity of wild poinsettia biotypes to glyphosate, identifying the occurrence of resistance of wild poinsettia to the herbicide in RS state and determinin...
Taxa de acúmulo de matéria seca e duração do período de enchimento de grãos em ...
Zanon, Alencar Junior; Fontana, Vanessa; Ribas, Giovana Ghisleni; Ribeiro, Bruna San Martin Rolim; Ulguim, André da Rosa; Carlos, Felipe SelauO objetivo deste trabalho foi determinar a taxa de acúmulo de matéria seca e a duração do período de enchimento de grãos de cultivares de arroz irrigado com diferentes grupos de maturação e épocas de semeadura. Para a determinação da taxa e duração do período de enchimento de grãos, a partir do florescimento foram realizadas amostragens por cultivar. Foi ajustada a relação entre dias após florescimento e peso d...
Does competition between soybeans and Wild Poinsettia with low-level resistance...
Ulguim, André da Rosa; Agostinetto, Dirceu; Oliveira, Claudia de; Ruchel, Queli; Silva, Jessica Dias Gomes da; Vargas, Leandro; Avila, Luis AntonioThe Wild Poinsettia (Euphorbia heterophylla L.) has elevated potential to reduce the soybean yield and is a difficult to control plant due to herbicide resistance. The objectives of this study were to determine the changes in the photosynthetic physiological parameters, secondary metabolite levels, cellular damage, and antioxidant system activity in soybean plants and Wild Poinsettia biotypes with a low level o...
Yield loss and economic thresholds of yellow nutsedge in irrigated rice in func...
Agostinetto, Dirceu; Westendorff, Nixon da Rosa; Ulguim, André da Rosa; Nohatto, Marcos André; de Avila, Luis AntonioWeeds cause reduction in the rice yield. Little is known about the competitive ability of yellow nutsedge (Cyperus esculentus) with rice and the extent of the economic threshold (ET). The aim of this study was to determine the fit of the regression model to estimate hyperbolic yield losses and ET of yellow nutsedge in rice due to the cycle of cultivars (BRS Querência - Early cycle and IRGA 424 - mid cycle). For...
Resposta de capim pé-de-galinha (Eleusine spp.) ao herbicida glyphosate
Ulguim, André da RosaMade available in DSpace on 2014-08-20T14:07:35Z (GMT). No. of bitstreams: 1 dissertacao_andre_da_rosa_ulguim.pdf: 737994 bytes, checksum: d7fb68f650e30460551f7c006b1b7b8f (MD5) Previous issue date: 2012-03-01; The goosegrass (Eleusine spp.) is an annual plant, found in agricultural crops in Rio Grande do Sul (RS), where has been control failures in response to glyphosate application, suggesting the resistance ...
Agronomic characteristics of wheat due to seed treatment and timing of nitrogen...
Ulguim, André da Rosa; Agostinetto, Dirceu; Martini, Alfran Tellechea; Westendorff, Nixon da Rosa; Langaro, Ana CláudiaWheat (Triticum aestivum L.) is the most economically important crop between winter cereals. Two experiments were conducted to evaluate the effect of seed treatment with fungicides to delay crop emergence and influence of nitrogen application time on morphological and physiological variables and yield components of wheat. The first, in the greenhouse and completely randomized design, tested two seed treatments,...