Two experiments were conducted to evaluate the effect of different preservative solutions on maintaining postharvest quality of red roses cultivar ‘Carola’. The treatments evaluated in both experiments were five preservative solutions: (S) sucrose (1%) (SAC) sucrose (1%) + citric acid (0.2 g L-1), (SACH) sucrose (1 %) + citric acid (0.2 g L-1) + sodium hypochlorite (1%) (SACA) sucrose (1%) + citric acid (0.2 g L-1) + rosemary oil (Rosmarinus officinalis L.) (100 uL L-1), (SACG) sucrose (1%) + citric acid (0.2 g L-1) + Oil Ginger (Zingiber officinale) (100 uL L-1). In the first experiment the rods were maintained for 10 days in refrigerator at 3 ± 1 °C and in the second experiment were maintained for five days in refrigerator (3 ± 1 °C) and five days at ambient conditions (19 ± 1 °C) . The variables evaluated were swelling, curvature of the floral stalk, browning petals, floral opening and colored petals, in both experiments, and coloring of the petals in the second experiment. The evaluations were performed every two days during the storage period in experiment 1, and daily during the shelf period in experiment 2. The experimental design in both experiments was a randomized complete block design with four replications and two branches each. In the first experiment, the use of sucrose was shown to be as effective as the other preservative solutions, preserving the roses up to 10 days in cold storage at 3 ± 1° C. In the second experiment, for the solution containing sucrose alone, the use of sodium hypochlorite, rosemary oil, and ginger oil showed the best results in maintaining the quality of the rods, and essential oils gave better preservation of roses.

Na composição florística de praças e jardins é importante que haja diversidade de famílias e espécies, o que atrai uma fauna diversificada e a ornamentação torna-se rica. O objetivo desse trabalho foi avaliar a composição florística e caracterizar as espécies com relação a toxidade, presença de espinhos, propriedades medicinais e alimentícias. O levantamento florístico foi realizado nas praças públicas João Ribeiro, Vidal Ramos Sênior e Joca Neves, localizadas no município de Lages, Santa Catarina, realizado em junho a dezembro de 2013. As espécies foram identificadas pelo nome popular, nome científico e família botânica e todas as plantas foram fotografadas para facilitar as identificações. Foram registradas 50 espécies, distribuídas em 34 famílias. As famílias com maior ocorrência foram Fabaceae e Poaceae, cada qual com cinco espécies, representando 19,2% do total de espécies. Em segundo lugar a família Myrtaceae com quatro espécies (7,7%), seguida pelas famílias Cupressaceae, Iridaceae, Arecaceae e Lythraceae, com duas espécies cada (15,2%). O restante das famílias foi representado por uma espécie em cada (57,9%). A Araucaria angustifolia (Pinheiro-brasileiro) foi a espécie de maior frequência encontrada nos três locais de estudo, seguido pelo Tagetes erecta (Tagetes), Ophiopogon intermedius (Grama-preta), Ligustrum lucidum (Ligustro) e Lagerstroemia indica (Resedá), estes encontrados em dois dos locais inventariados. Identificou-se uma grande variedade de famílias botânicas nos locais de estudo, ainda que com poucas espécies representando cada uma das famílias. O conhecimento da diversidade de famílias botânicas em espaços públicos pode trazer contribuições tanto de manejo quanto em termos culturais, históricos, e inclusive de saúde pública.

The use of native plants enriches the landscape projects, conserves the local flora, creates a local identity and promotes the symbiosis between native fauna and flora. The objective of the present study was to evaluate the vegetative propagation of the native species Calibrachoa sellowiana, Tibouchina dubia and Verbena rigida, using cuttings submitted to different concentrations of indolebutyric acid (IBA), naphthaleneacetic acid (NAA) and substrates. From the stock plants, the cuttings were excised from the apex, with leaves number varying according to the species. In the propagation of Calibrachoa sellowiana, Tibouchina dubia and Verbena rigida under different concentrations of IBA, 4 treatments were carried out, consisting of IBA at concentrations of 0 mg L-1 (control), 500 mg L-1, 1000 mg L-1 and 2,000 mg L-1. In the propagation of Tibouchina dubia under different concentrations of NAA, the experiment was developed using four treatments, NAA was diluted in acetone + talc at concentrations of 0 mg L-1 (control), 2,000 mg L-1, 4,000 mg L-1 and 6,000 mg L-1. The evaluated variables for all the experiments were: percentage of rooted cuttings, number of roots per rooted cutting, average root length (cm) and number of shoots. In the substrate experiment, the treatments were sand, vermiculite, Plantmax® and mixture of soil + sand, for all the species from the previous experiments. Calibrachoa sellowiana and Verbena rigida, rooted with low concentration of IBA, 0 e 500 mg L-1, respectively, but the PGR was not essential to rooting phase, since the control also developed roots. For Tibouchina dubia the IBA and NAA did not promoted rooting. Calibrachoa sellowiana rooted better with soil + sand, differing from Verbena rigida, which rooted better with Plantmax®.

No abstract

Organic fertilization favors the physical and chemical attributes improvement of the soil and promotes the use of waste that would be discarded in the environment. This study aimed to identify the appropriate levels of rabbit manure compost (RMC) from rabbit farming in the production of substrates for lettuce. The experiment was implanted in plastic pots using 5 treatments: 0%, 25%, 50%, 75% and 100% of RMC mixed with commercial substrate, in a completely randomized design with 10 replications. The analyzed variables were number of leaves per plant, shoot green matter, root green matter, shoot dry matter and root dry matter. There was an increase in number of leaves with the increase of the RMC doses incorporated into the substrate, up to the dose of 59.46%. The shoot green matter had its best response on 61.42% of RMC. In both variables there was a decline afterwards. The root green matter started with an increase up to the dose of 36.14% of RMC, followed by a decline, and another increase, not reaching the same values obtained at the beginning of the curve. An increase was observed in the shoot dry matter as the amount of RMC increased, up to the limit of 45.09%, and then declined. The root green matter showed an increase until approximately 25% of RMC, stabilizing on 75% of the compost. In general, values close to 60% of RMC mixed with the substrate presented the best results. We can conclude that the RMC can be used to promote a greater number of leaves, which are the economically viable parts of lettuce culture.

A obtenção de mudas de qualidade e a escolha do porta-enxerto estão relacionados com o equilíbrio vegeto-produtivo da planta. Verificou-se a eficiência da técnica do jardim clonal para três cultivares de porta-enxertos de pereira e consequentemente, a indução de novas raízes e brotações. Foram realizados três experimentos, sendo o enraizamento de estacas de porta-enxertos de pereira (OHxF 69, OHxF 87 e CAV 03), sob diferentes concentrações de regulador de crescimento; o segundo uma comparação do fator cultivar, com a concentração de AIB mais adequada do estudo anterior e; o efeito da presença de folhas e controle da temperatura, umidade e fotoperíodo no estímulo de brotação das estacas. A técnica de jardim clonal é eficiente para a propagação de mudas de porta-enxertos de pereira e 1000 mg L-1 de AIB proporciona estacas de maior comprimento para as três cultivares, entretanto, ‘CAV 03’ se destaca das demais, com maior número e comprimento médio de raízes, com 2000 mg L-1 de AIB. Para a cultivar CAV 03, o estímulo de indução a novas brotações, mais longas e com maior número de folhas, ocorre em condições de 360 horas a temperatura de 24 ± 1ºC, 0% de umidade relativa e fotoperíodo de 24 horas.

Santa Catarina State is endowed with a flora with great wealth and diversity. The impact that introduction and cultivation of exotic ornamental plants can have on biological diversity is incalculable, and knowledge is of prime importance in measuring this value for the preservation of species and the environment. The objective of this work was to evaluate the phenology of five native species with ornamental potential in the Serra do Oratório, located in the municipality of Bom Jardim da Serra, Santa Catarina State, and to conduct phenological studies of the species Calibrachoa sellowiana (Sendtn.) Wijsman, Baccharis nummularia Heering ex Malme, Trichocline catharinensis Cabrera, Tibouchina dubia (Cham.) Cogn. and Verbena rigida Spreng. Phenological studies occurred between August 2016 and July 2017, with samples of five plants of each species. In this period the occurrence of the phases was recorded: dormancy, vegetation, flower buds or visible inflorescences, full bloom, fruiting and fruit ripening. The esthetic variables evaluated were size, color, texture, line, shape, structure and symmetry of the species. The meteorological variables related to the phenological events were temperature (ºC), precipitation (mm) and insolation (h). The species Tibouchina dubia, Verbena rigida and Calibrachoa sellowiana, even with short flowering time, are indicated for use in landscaping in the region of South Catarinense Plateau. The meteorological variables evaluated were correlated with the phenophases of the species studied.

The objective of this work was to evaluate the productivity of the Avalanche and Carola roses cultivars, with white and red color, respectively, in three planting densities in the municipality of Lages-SC. The experiment was implemented at the Santa Catarina State University campus (UDESC), spacing 1.0 m between rows and 30, 40 and 50 cm between plants, totaling 168 m² of experiment in a protected environment. During harvesting the stems were cut with the largest possible stem length, leaving one yolk for the next budding. The evaluated variables were: flower stems production per plant, yield per area (floral stems / m²), floral stem mass (g), stem length (cm), floral button length (cm). The treatments consisted of two roseberry cultivars: Avalanche and Carola and three planting densities: 2.2, 2.5 and 3.3 plants per m². In each block, treatments were arranged at random, organized into subdivided plots. The plots were the cultivars and the subplots were the planting densities. Each subplot was composed of six plants, totaling 18 plants per plot and 144 plants throughout the experiment. The density of 3.3 plants / m² increased yield per growing area, without interfering in the quality of the floral stems of the cultivars Avalanche and Carola. The cultivar Carola produces longer flower stems than the cultivar Avalanche.