DSpace Coleção:
https://repositorio.ifgoiano.edu.br/handle/prefix/227
2024-03-29T08:29:16ZABUNDÂNCIA E MANEJO DE DIATRAEA SACCHARALIS EM CANA-DE-AÇÚCAR NO MATO GROSSO DO SUL
https://repositorio.ifgoiano.edu.br/handle/prefix/4248
Título: ABUNDÂNCIA E MANEJO DE DIATRAEA SACCHARALIS EM CANA-DE-AÇÚCAR NO MATO GROSSO DO SUL
Autor(es): Santos, Lucas
Primeiro Orientador: Alves, Tavvs
Primeiro Membro da Banca: Melo, Elmo
Segundo Membro da Banca: Nascimento, Jacqueline
Terceiro Membro da Banca: Alves, Tavvs
Abstract: Brazil is the world's largest producer of sugarcane. One of the factors influencing production and product quality is the infestation of the sugarcane borer, Diatraea saccharalis, which is present in all regions where the crop is cultivated. The objective of this study was to assess the abundance of the sugarcane borer in various sugarcane production areas in the Vale do Ivinhema region, MS. The region features a tropical climate with well-defined seasons, characterized by hot and rainy summers and slightly cold, dry winters. The study was conducted on five farms located in the municipality of Nova Andradina. Traps were strategically placed on the border or up to 2 meters inside the plot, generally at carriage crossings. These traps were affixed to sugarcane leaves to protect them from direct sunlight without compromising wind flow and pheromone dispersion. Monitoring of sugarcane borer adults took place from November 2021 to October 2022, with collections carried out monthly. D. saccharalis males were captured in traps containing virgin females, separated through sexual dimorphism, and subsequently counted to determine control levels. To assess the impact of different sugarcane genetic varieties on sugarcane borer density over twelve months, data underwent analysis of variance. Georeferenced points were selected for trap installation, and the influence of farm-specific factors, such as management practices, on sugarcane borer density was evaluated for farms using the same sugarcane cultivar. Contrasts between treatments were assessed using the Tukey method. When analyzing monthly results, a general pattern emerged, indicating that infestation by D. saccharalis was most intense from November to April, with a subsequent reduction from May to October. This pattern can be attributed to climatic influences on the pest's survival and reproduction. The fluctuation in D. saccharalis populations is locally significant, varying significantly between different areas due to climatic and edaphic factors inherent to the plants and their conditions. Recommendations for integrated pest management in sugarcane crops include intensive monitoring of the pest during critical periods, adoption of resistant varieties, biological control, cultural control, and controlled implementation of chemical measures in accordance with technical recommendations.
Editor: Instituto Federal Goiano
Tipo: Dissertação2023-12-14T00:00:00ZMANEJO COM HERBICIDAS EM PRÉ E PÓS-EMERGÊNCIA DA CULTURA DO GERGELIM
https://repositorio.ifgoiano.edu.br/handle/prefix/4211
Título: MANEJO COM HERBICIDAS EM PRÉ E PÓS-EMERGÊNCIA DA CULTURA DO GERGELIM
Autor(es): Santos, Joni Olmiro Erbice dos
Primeiro Orientador: Cruz, Sihélio Júlio Silva
Abstract: Sesame is the oldest oilseed cultivated in the world by humanity. However, in the
literature, it is noticeable that there is a lack of scientific work that could help the
implementation of this crop on a large scale, that is, the mechanization of this crop from
planting, handling to harvesting, since this crop has always been managed in a manually, from
planting to harvesting. Despite this, the expansion of large planted areas in recent years requires
the mechanization of this entire process and, therefore, the objective of this work was to
evaluate the effectiveness of herbicides applied in pre- and post-emergence for the control of
weeds in sesame crops. An experiment was therefore set up in the experimental field of the
IFMT in Campo Novo do Parecis-MT. The experiment was conducted in the field from march
to may 2023, with the evaluation of different doses of diuron in post-emergence of the sesame
crop: 0; 500; 750 and 1000 g ha-1 of the active ingredient (a.i.), combined with two preemergent herbicides, with two doses each: clomazone (500 g ha-1 of a.i.); clomazone (750 g
ha-1 a.i.); S-metolachlor (960 and 1440 g ha-1 a.i.); in addition to a control treatment (without
pre-emergents) on seeds previously treated with 1.5 l/ 100 kg of seed, of permit. Visual
assessments were carried out, assigning damage and quantitative scales submitted to analysis
of variance and comparison between means using the Tukey test at 5%. The diuron herbicide
applied post-emergence, starting at a dose of 1.0 L ha-1 of the commercial product, reduces
sesame productivity in relation to the untreated crop. S-metalachlor, when applied pre-
emergence, even in doses of 960 g ha-1 of the active ingredient, slows down the growth of
sesame plants and reduces the stand despite not causing visible damage to phytoxicity. The
number of pods per plant and the mass of a thousand sesame grains are not altered by the use
of s-metalachlor and clomazone in pre-emergence, combined or not with different doses of
diuron, when compared to treatments without herbicides
Editor: Instituto Federal Goiano
Tipo: Dissertação2023-12-13T00:00:00ZTRATAMENTO DE SEMENTES DE MILHO COM ESTIMULANTES DE CRESCIMENTO VISANDO ADAPTAÇÃO AS MUDANÇAS CLIMÁTICAS
https://repositorio.ifgoiano.edu.br/handle/prefix/4160
Título: TRATAMENTO DE SEMENTES DE MILHO COM ESTIMULANTES DE CRESCIMENTO VISANDO ADAPTAÇÃO AS MUDANÇAS CLIMÁTICAS
Autor(es): Avelar, Alarisse Costa
Primeiro Orientador: Oliveira, Silvia Sanielle Costa de
Primeiro Membro da Banca: Ponciano, Vanessa de Fátima Grah
Segundo Membro da Banca: Cruz, Sihélio Júlio Silva
Abstract: Corn is one of the largest arable crops in Brazil and contributes in a large share to the country's exports. The main function of the amino acids application in various crops is to activate physiological metabolism, leading the plant to exit a post-stress condition. Therefore, the objective was to evaluate the germination and vigor of corn seeds treated with a growth stimulant under abiotic stress conditions. The experiments were conducted at the Seed Analysis Laboratory at IF Goiano, Campus de Iporá – GO using the corn hybrid DKB 360, and the seeds were treated with the commercial product Speed Advantage®, at a dose of 4 mL. For both treatments, the following will be evaluated: Percentage and index of germination speed, length, dry mass, field emergence and seedling emergence speed. For thermal stress, it was possible to verify that the treated corn seeds only presented satisfactory results when subjected to temperatures suitable for germination. As for water stress, there was no significant interference using growth stimulant for seeds. Therefore, it is concluded that the treatment at the dose used did not have a positive effect on the vigor and germination aspects of corn seeds exposed to thermal and water stress conditions.
Editor: Instituto Federal Goiano
Tipo: Dissertação2023-10-27T00:00:00ZGERMINAÇÃO E VIGOR DE SEMENTES DE SORGO E MILHO TRATADAS COM ESTIMULANTE DE CRESCIMENTO
https://repositorio.ifgoiano.edu.br/handle/prefix/4153
Título: GERMINAÇÃO E VIGOR DE SEMENTES DE SORGO E MILHO TRATADAS COM ESTIMULANTE DE CRESCIMENTO
Autor(es): Georges, Guilherme Andraos Mota
Primeiro Orientador: Oliveira, Silvia
Abstract: Corn and sorghum are crops of significant importance for Brazilian agriculture. They are in high
demand for national use, in animal and human food, and for exportation. In this sense, the use
of high-quality seeds may increase the viability of crops, becoming an important ally for
producers. In this sense, the objective of the present study was to verify the effects of the
treatment of sorghum and corn seeds using growth stimulants containing micronutrients and
amino acids on the germination and vigor of the plants. For that, there were used six doses (0,
1, 2, 3, 4 and 5 ml kg-1 of seeds) of the mixed mineral fertilizer“Agressive Desperta” and the
germination test variables were analyzed to determine seedling growth and seedling dry mass.
The treatment did not provide differencesin the germination percentageof corn seeds. In addition
to reduction in shoot and root length and increase in corn root dry matter.In sorghum a reduction
in the percentage of seed germination wasobserved, an increase in the length of sorghum
seedlings related to the variables: aerial part, rootand total, and a reduction in the dry matter of
the sorghum root.
Editor: Instituto Federal Goiano
Tipo: Dissertação2023-09-29T00:00:00Z