Gomes, Wiara de AssisMedeiros, Glauber Dantas da Costa2024-07-242024-07-242024-06-21MEDEIROS, Glauber Dantas da Costa. Propagação de amoreira-preta (Rubus spp) no município de Macaíba-RN. Orientadora: Profa. Dra. Wiara de Assis Gomes. 2024. 40 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Agronômica) - Unidade Acadêmica Especializada em Ciências Agrárias, Universidade Federal do Rio Grande do Norte, Macaíba, 2024.https://repositorio.ufrn.br/handle/123456789/58855The black mulberry tree is an alternative for diversifying agricultural activity in family farming, due to its low implementation cost, reduced need for pesticides, easy management and, above all, quick financial return. Its main form of propagation is asexual, using the cutting method. The success of this method is related to the size of the cutting, in addition to the position of the cutting on the branch, although this information is not yet well defined for this species. Therefore, the objective of this work was to determine the collection part of the cutting portion in the branch and the most appropriate cutting size for blackberry cuttings. The experiment was carried out in a screened nursery located in the Academic Unit Specialized in Agricultural Sciences, located at the Jundiaí Agricultural School, belonging to the Federal University of Rio Grande do Norte, Macaíba-RN campus. The experimental design was completely randomized, in a 2x2 factorial scheme, corresponding to two positions on the branch (apical and median) and two cutting lengths (15 and 20 cm), with three replications and eight cuttings per plot. After 75 days, the percentage of rooted cuttings, the length of the longest root, root volume, the weight of the dry matter of the root system and aerial part and the average length of the shoots were evaluated. The results indicated that the vegetative propagation of blackberry via cuttings is viable, with a high percentage of rooting for all treatments. However, cuttings from the middle portion of the branch had a higher rooting percentage and greater average shoot length. The 20 cm length influenced a greater root volume of the seedlings. Cuttings from the middle portion obtained a higher percentage of rooting and a greater average sprouting length. Because they present the best parameters, the 20 cm cuttings from the middle portion of the branch proved to be more suitable for the commercial production of blackberry seedlings.EstaquiaFruticulturaPequenos frutosAgricultura familiarRio Grande do NorteCuttingFruit growingSmall fruitsFamily farmingbachelorThesisCNPQ::CIENCIAS AGRARIAS