TCC - Bacharelado em Ciências Biológicas (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/412
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Item Influência do cocultivo de bactérias promotoras de crescimento no desenvolvimento morfofisiológico de Canistrum aurantiacum (Bromeliaceae)(2024-03-07) Ferreira, Esdras de Souza; Silva, Cláudia Ulisses de Carvalho; Oliveira, Henarmmany Cristina Alves de; http://lattes.cnpq.br/6859724202937192; http://lattes.cnpq.br/7161911278790052; http://lattes.cnpq.br/0201835717024585The reintroduction of vulnerable species is a common practice in ecological conservation and restoration, aiming to address the challenges arising from habitat fragmentation and climate change. However, reintroduction attempts of native plants, such as Canistrum aurantiacum, often encounter difficulties in establishing lasting reproductive populations. A promising approach to improve the success of these reintroductions is co-cultivation with growth-promoting bacteria (GPBs), which can benefit plant development at various stages of cultivation. This study sought to evaluate the impact of GPB co-cultivation on the growth and development of C. aurantiacum seedlings. The experiment was conducted in a greenhouse attached to the Plant Physiology Laboratory (LFP) at the Federal Rural University of Pernambuco (UFRPE), Recife-PE. Seeds of C. aurantiacum were sown in trays containing organic substrate and washed sand. After 90 days, the plants were transplanted into containers containing a mixture of organic substrate and sand, previously sterilized. Five GPB treatments, including a control, with 10 replicates each, were used. The plants were inoculated with bacterial suspension or sterile deionized water and maintained under these conditions for 64 days. Biometric and total chlorophyll content analyses were conducted throughout the experiment. The data obtained were analysed using ANOVA, and the means were compared employing the Tukey test at a 5% significance level. However, no significant differences were observed between the treatments regarding these variables. The results indicate that GPB inoculation had no significant effect on the growth and chlorophyll content of C. aurantiacum during the study period. This finding suggests that other factors, such as interspecific interactions between plants and microorganisms, may have influenced plant development. Therefore, further research is needed to better understand the effectiveness of GPB co-cultivation as a management strategy for vulnerable species in reintroduction programs.Item Influência de diferentes substratos no crescimento inicial de rosa do deserto (Adenium obesum forssk. Roem. & Schult)(2021-12-17) Souza, José Víctor de Melo; Bezerra, Elisangela Lucia de Santana; http://lattes.cnpq.br/4360870964749577; http://lattes.cnpq.br/8900822307167760Although it is a relatively new ornamental plant on the market, the desert rose (Adenium obesum forssk. Roem. & Schult) is the fifth most traded in Brazil. Thus, the objective of this work was to evaluate the influence of different organic substrates on the development of desert rose seedlings. For development analysis, they were cultivated in vegetable soil for 9 days until germination, after which they continued to be watered daily for another 45 days, after which 60 individuals were selected and divided into 4 treatments for the experiment, namely: S1 (control group) 100% vegetable soil, S2 50% vegetable soil + 50% compost, S3 50% vegetable soil + 50% goat manure and S4 50% vegetable soil and 50% earthworm humus. The samples were kept in a greenhouse at random for 80 days and watered with 200ml at 48-hour intervals. After dismantling the experiment, the sample's morphometric data were collected and submitted to analysis of variance (ANOVA), and the means were compared by Tukey test at 5% significance. In all results, the treatments with goat manure and earthworm humus stood out and had results well above those of the control group, with averages such as leaf area and total size about five times larger than in the other treatments. Based on the results obtained, it was found that the treatments that best contributed to the development of Adenium obesum seedlings were treatments S3 (50% vegetable soil + 50% goat manure) and S4 (50% vegetable soil + 50% earthworm humus), proving that for seedlings of desert rose Adenium obesum (forssk. Roem. & Schult) the substrate porosity has a great contribution in its development.