ResumoO objetivo do trabalho foi avaliar o efeito do hidrocondicionamento e de técnicas de atmosfera controlada e modificada na conservação da viabilidade de sementes armazenadas de cerejeira-do-mato (E. involucrata) por diferentes períodos. O experimento 1 foi instalado com delineamento experimental deblocos ao acaso, em fatorial 2 x 4 x 2 (pré-hidrocondicionamento x técnica de armazenamento x tempo de armazenamento), com 4 repetições, de 50 sementes por parcela. As sementes extraídas foram separadas em dois lotes, sendo um submetido ao pré-hidrocondicionamento em água destilada durante 24 horas e outro não. Sementes hidrocondicionadas ou não foram submetidas a quatro técnicas de armazenamento, sendo estes, embalamento a vácuo, revestimento com biofilme de fécula de mandioca (3% m/v), vácuo + biofilme de fécula de mandioca e sem tratamento (testemunha). Posteriormente, as sementes foram mantidas em câmara fria, em temperatura de 5ºC durante 5 e 30 dias. O experimento 2 foi instalado em delineamento inteiramente casualizado, em esquema fatorial 2 x 3 (ambiente x período de armazenamento), com quatro repetições de 50 sementes por parcela. Foram testadas duas condições de armazenamento, sendo estas de ambiente natural e controlado sob temperatura de 6° C, permanecendo as sementes nestas condições por 3 períodos (15, 30 e 45 dias).Para o armazenamento das sementes de cerejeira-da-mata deve-se utilizar técnicas a vácuo isolada ou com revestimento de biofilme. Ocorre perda de viabilidade das sementes quando o teor de água foi reduzido a 39,84% ou se mantidas em condição ambiente por mais de 30 dias. Palavras chave: Eugenia involucrata DC.; Myrtaceae; Propagação sexuada; Armazenamento. Hydropriming and modified atmosphere or controlled to conserve viability cerejada-mata seeds AbstractThe objective was to evaluate the effect of hydropriming and conservation techniques (vacuum and biofilm) of stored seeds of cereja-da-mata (E. involucrata) for different periods. Experiment 1 was installed with experimental design of randomized blocks in a factorial 2 x 4 x 2 (pre-storage x technique hydropriming x storage time), with four replications of 50 seeds each. The extracted seeds were separated into two batches, one being subjected to the pre-hydropriming in distilled water for 24 hours and the other not. Hidrocondicionadas seeds or have not undergone four storage techniques, which are, vacuum packaging, coating cassava starch biofilm (3% w/v), vacuum + starch biofilm cassava and untreated (control). Then the seeds were kept in cold storage, in 5°C temperature for 5 and 30 days. Experiment 2 was completely randomized in a factorial 2 x 3 (environment x storage period), with four replications of 50 seeds per plot. Two conditions have tested these natural environment and under controlled temperature 6°C, the remaining seeds under these conditions for 3 times (15, 30 and 45 days). For storage of cereja-da-mata seeds should be used techniques isolated vacuum or biofilm coating. There is loss of seed viability when the water conten...
Guabiju tree is usually propagated by seeds, although this method presents disadvantages, such as a long juvenile period and great genetic variability, resulting in uneven plants which makes management and the establishment of commercial orchards difficult, in addition to the delay in the production entry. The objective of this work was to test the propagation technique by mini-cutting in guabiju tree. The experimental design used was completely randomized, with a 2 x 2 x 3 factorial (ontogeny of the matrix plant x cut length x IBA concentration), with four replications and 20 mini-cuttings per experimental unit. A hundred and twenty days after the implantation of the experiment, the rooting percentage and callogenesis of the mini-cuttings, the secondary root total length, the aerial part and number of leaves were evaluated. The rooted mini-cuttings were transplanted into larger containers with substrate, and after 60 days of transplantation, their survival percentage was analyzed. The highest rooting percentage was obtained with 0 mg L-1 of IBA with an 57.69% average. Mini-cuttings had a high percentage of survival, with 87.5% being the lowest, presenting a satisfactory result. For the guabiju tree propagation by mini-cutting, it is recommended not to use IBA and adopt a length of four centimeters, using a juvenile matrix plant.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.