https://repositorio.ifgoiano.edu.br/handle/prefix/256 Thu, 12 Mar 2026 14:03:25 GMT 2026-03-12T14:03:25Z https://repositorio.ifgoiano.edu.br/handle/prefix/6250 Título: EFEITO DE REGULADORES DE CRESCIMENTO SOBRE A ARQUITETURA DE PLANTAS E O RENDIMENTO DE SOJA Autor(es): Mendes, Diego Rodrigues Primeiro Orientador: Pereira, Alexandre Igor Azevedo Abstract: Growth regulators have the potential to modulate soybean architecture and productivity, but their effects are complex and strongly dependent on interactions among the plant, the product, and the environment. This study comparatively evaluated eight regulators using a multivariate approach capable of integrating morphological, reproductive, and yield-related traits of soybean grown in the Brazilian Cerrado. The experiment was conducted in a randomized complete block design with four replications, with applications at V4, and ten agronomic variables were assessed, including plant architecture, pod classes, and yield. Although ANOVA using mixed models did not detect isolated statistical differences for most variables (p > 0.05), treatment-specific correlations revealed contrasting physiological patterns. Cluster analyses and the Smith–Hazel index proved highly informative, allowing the discrimination of three performance groups: recommended regulators (Stimulate, PR136, and Check), characterized by more balanced responses; intermediate regulators (StoppingGo and MaxCel); and non-recommended regulators (StartStop, Equaliza, and Biozyme), which showed inferior agronomic performance. Thus, even without robust univariate effects, the multivariate approach demonstrated a high capacity to distinguish the agronomic merit of the products, reinforcing that integrated analyses are essential to guide precise recommendations in soybean management. Further research should be conducted to confirm and expand these findings under different cultivation and management conditions. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Mon, 16 Feb 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6250 2026-02-16T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/5977 Título: TURNOS DE REGA E DOSES DE HIDROGEL NO CULTIVO DA ALFACE AMERICANA Autor(es): Guimarães, Ana Vitória Evangelista Primeiro Orientador: Salomão, Leandro Caixeta Abstract: Efficient water management is one of the main challenges in the cultivation of iceberg lettuce (Lactuca sativa L.), a vegetable crop of great economic importance whose shallow root system makes it vulnerable to water stress. This study aimed to investigate the growth and yield response of iceberg lettuce as a function of different irrigation schedules (IR) and the application of hydrogel. To this end, an open-field experiment was conducted at IF Goiano - Campus Urutaí, using a randomized block design in a 4x4 factorial arrangement. The treatments consisted of the combination of four irrigation schedules (1, 2, 3, and 4 days) and four hydrogel doses (0, 25, 50, and 75 g). The biometric variables analyzed were height, number of leaves, diameter, and fresh weight of the aerial part. Statistical analysis did not detect a significant effect of any of the isolated factors, nor of the interaction between them, on the growth and yield variables. The lack of agronomic response can be attributed to the occurrence of precipitation during the experimental cycle, which standardized soil moisture conditions across treatments. It is concluded that, under the specific edaphoclimatic conditions of this study, the tested strategies did not result in improved iceberg lettuce yield. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Fri, 10 Oct 2025 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/5977 2025-10-10T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/5960 Título: DESEMPENHO DO TRATAMENTO COM BIOINSUMO E MICRO-ONDAS EM SEMENTES NATIVAS DE BARU Autor(es): Rosa, Vytoria Eduarda Dias Primeiro Orientador: Faria, Rute Quelvia de Abstract: Baru (Dipteryx alata Vog.), a key species of the Cerrado with growing economic potential, faces limitations in seedling production due to the low and uneven physiological quality of its seeds. Seeking to overcome these challenges, this study investigated the impact of sustainable technologies on the germination and vigor of baru seeds. The methodology involved classifying the seeds into three groups (light colored, dark-colored, and damaged) and applying physical (microwave) and biological (Trichoderma spp.) treatments, both individually and in combination. The results indicated that the individual treatments were surprisingly more effective than their combinations. Thermotherapy stood out for promoting superior seedling development, while the biological treatment significantly accelerated germination speed. These findings point to new strategies that can optimize seedling production and strengthen Cerrado restoration programs. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Mon, 29 Sep 2025 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/5960 2025-09-29T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/5942 Título: TURNOS DE REGA E DOSES DE HIDROGEL NO CULTIVO DA ALFACE CRESPA ROXA LUMINOSA Autor(es): Sousa, Kauhana Varanda de Primeiro Orientador: Salomão, Leandro Caixeta Abstract: Lettuce (Lactuca sativa L.) is one of the most widely produced leafy vegetables in Brazil, with great economic importance and high water demand due to its shallow root system. Management strategies such as adjusting irrigation intervals and applying hydro-retentive polymers have been investigated to improve water use efficiency and ensure sustainable production. This study aimed to evaluate the yield of purple crisp lettuce, cultivar Luminosa, under four irrigation intervals (1, 2, 3, and 4 days) and four hydrogel doses (0, 25, 50, and 75 g), in a randomized block design with a 4×4 factorial scheme, carried out under open-field conditions at IF Goiano – Campus Urutaí. Plant height, number of leaves, stem diameter, and fresh shoot mass were evaluated. The data were subjected to analysis of variance (ANOVA) using SISVAR, with simultaneous verification of residual normality and homogeneity, and means were compared by Tukey’s test at the 5% probability level. The results showed no significant effects of irrigation intervals, hydrogel doses, or their interaction on any of the evaluated variables. The lack of statistical differences may be related to the edaphoclimatic conditions during the experimental period, which reduced the distinction among treatments. It is concluded that, under the conditions of this study, changes in irrigation intervals and hydrogel application did not improve lettuce yield. Keywords: Hydrogel; Irrigation; Lactuca sativa L.; Lettuce; Water management. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Wed, 10 Sep 2025 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/5942 2025-09-10T00:00:00Z