TCC Engenharia Agronômica

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https://repositorio.ifal.edu.br/handle/123456789/41

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Navegando TCC Engenharia Agronômica por Orientador "Costa, Kleyton Danilo da Silva"

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    Biometria e produtividade de grãos de híbridos de milho no alto sertão sergipano
    (INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2023-02-01) Conceição, Rosana Tavares; Souza, Ênio Gomes Flôr; http://lattes.cnpq.br/9225008513028085; Costa, Kleyton Danilo da Silva; http://lattes.cnpq.br/3562128215536520; Silva, Jose Madson da; http://lattes.cnpq.br/5749870599305506
    Corn is a crop of great socioeconomic importance used in animal feed. Brazil is the third largest producer of the grain, with plantations in several regions. In Sergipe the culture has been widely exploited, however, some regions face difficulties to achieve good results in grain production, choosing the correct cultivar helps to minimize losses. Therefore, the objective of the research was to evaluate the characteristics of corn hybrids for grain in the Sergipe semi-arid region regarding its productivity and biometry. The experiment took place in lot 2N-01, of Sector 3, of the California Irrigated Perimeter, located in the city of Canindé de São Francisco, under randomized block design, with thirteen treatments and four repetitions. The treatments were twelve corn hybrids: BM930 PRO3, BM855 PRO2, BM990 VIP3, BM815 PRO2, BM270 PRO2, BM709 PRO2, BM880 PRO3, BM3066 PRO2, K7500 VIP3, K9606 VIP3, K9555 VIP3, K7510 VIP3; and one variety: BRS Gorutuba. After physiological maturity, the evaluated characteristics were: plant height to the stem, stem diameter, ear insertion height, ear length, ear diameter, number of grain rows, grain mass per ear, 100-grain mass, and grain yield. Hybrid K7510 showed the best result for plant to ear height (260.72 cm). For ear insertion height, two groups were formed. Hybrids K7500 VIP3 and BM3066 PRO2 stood out in the ear diameter variable with averages of (5.56 cm and 5.46, respectively). For the number of grain rows, hybrid BM990 VIP3 stood out (19.70 units). Regarding the weight of one hundred grains, most hybrids formed a group with better performance and for productivity, only the free-pollinated variety had an average well below the other cultivars (6,964.29 kg ha-1).
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    Fitopatometria da murcha bacteriana em cultivares de tomateiro inoculadas com dois isolados de Ralstonia pseudosolanacearum
    (INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2023-12-20) Costa, Ester da Silva Costa; Souza, Almir Rogerio Evangelista de; https://orcid.org/0000-0002-9266-5063; https://lattes.cnpq.br/5565092143060833; Costa, Kleyton Danilo da Silva; https://orcid.org/0000-0003-4631-3240; https://lattes.cnpq.br/3562128215536520; Souza, Almir Rogerio Evangelista de; https://orcid.org/0000-0002-9266-5063; https://lattes.cnpq.br/5565092143060833; Marques, Fábio José; https://orcid.org/0000-0002-7043-4125; https://lattes.cnpq.br/2597421090332829
    Tomato is the second most consumed vegetable in the world and has great socioeconomic importance. However, its productivity is directly affected due to the crop's susceptibility to attacks by various phytopathogenic microorganisms. Bacteria from the Ralstonia solanacearum Species Complex are responsible for the most infectious and devastating bacteriosis of crops in countries with tropical and subtropical climates, bacterial wilt, caused by the obstruction of xylem vessels as a result of the production of exopolysaccharides. The only efficient control measure for this disease is the use of resistant cultivars. Therefore, the objective of this work was to use phytopathometric variables in bacterial wilt in tomato cultivars inoculated with two isolates of Ralstonia pseudosolanacearum. The experiment was conducted from October to November 2023 in a greenhouse at the Instituto Federal de Alagoas – Campus Piranhas. The experimental design used was completely randomized in a factorial scheme (10 x 2), containing 10 tomato cultivars and two isolates of the species Ralstonia pseudosolanacearum, totaling 20 treatments in three replications, resulting in 60 experimental plots, containing four plants each. Using the diagrammatic scale of bacterial wilt scores, phytopathometry of the disease was carried out using the variables: Incidence (INC), Bacterial Wilting Index (BWI), Disease Index (DI), Latency Period (LP50), Area Under Disease Progress Curve (AUDPC) and Infection Rate (IR). These variables were obtained for the interval of the 5th - 10th and 15th - 20th day of evaluation. There was a significant interaction between Cultivars x Isolates, for the following variables: BWI, AUDPC, IR (5th - 10th day of evaluation) and for IMB, ID, and TI (15th - 20th day of evaluation). The variables LP50, INC, IR, and AUDPC characterized the beginning of the bacterial wilt epidemic from the first evaluation interval, regardless of the cultivars and isolates. The cultivar Hawaii 7996 was classified as resistant to isolate CRMRs108, and the cultivar Bartô was classified as moderately resistant to both isolates. The phytopathometric variables were efficient in showing the interaction of host, pathogen, and environment in the evaluation intervals.