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  • 1
    Online Resource
    Online Resource
    Universidade Federal de Santa Maria ; 2019
    In:  Ciência Florestal Vol. 29, No. 2 ( 2019-06-30), p. 508-518
    In: Ciência Florestal, Universidade Federal de Santa Maria, Vol. 29, No. 2 ( 2019-06-30), p. 508-518
    Abstract: Devido a relevante importância econômica, tanto para o setor alimentício quanto farmacêutico, a oliveira vem sendo cada vez mais cultivada em todo o mundo. Para isso, a obtenção de mudas de qualidade com uniformidade e idoneidade varietal surge como fator altamente relevante na implantação dos pomares de oliveiras. Dessa forma, o objetivo deste trabalho foi desenvolver protocolo de estabelecimento in vitro a partir de segmentos nodais de duas cultivares de oliveira sob diferentes concentrações de hipoclorito de sódio e concentrações de BAP. O experimento foi conduzido no delineamento inteiramente casualisado, em esquema fatorial triplo (2x3x3), sendo duas cultivares de oliveira (Arbequina e Koroneiki), três concentrações de BAP (0,00; 2,22 e 4,44 µM) e três concentrações de hipoclorito de sódio (0,6; 0,8 e 1,0% de cloro ativo) para a descontaminação dos explantes. Cada tratamento contou com três repetições e a unidade experimental constituída por cinco tubos de ensaio com um explante cada. Após 28 dias, foi possível observar que os tratamentos testados não foram eficientes no estabelecimento in vitro de Olea europaea cv. Arbequina. A concentração de 2,22 µM de BAP adicionada ao meio WPM e a concentração de 1,0% de hipoclorito de sódio, utilizada na desinfestação dos explantes, são ideais para o estabelecimento in vitro de Olea europaea cv. Koroneiki.
    Type of Medium: Online Resource
    ISSN: 1980-5098 , 0103-9954
    Language: Unknown
    Publisher: Universidade Federal de Santa Maria
    Publication Date: 2019
    detail.hit.zdb_id: 2194052-6
    SSG: 23
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  • 2
    Online Resource
    Online Resource
    Universidade Estadual de Londrina ; 2018
    In:  Semina: Ciências Agrárias Vol. 39, No. 2 ( 2018-03-15), p. 455-
    In: Semina: Ciências Agrárias, Universidade Estadual de Londrina, Vol. 39, No. 2 ( 2018-03-15), p. 455-
    Abstract: The lack of research about escarole cultivars adapted to each region, as well as technical information on plant growth have been some of the factors related to low yields. Therefore, the aim of this work was to evaluate the growth of escarole crop in four seasons of year in Santa Maria, RS. The experiment was conducted in a randomized complete block design, 1 x 4, being a escarole (cultivar Escorola Lisa®) evaluated in four seasons of year (summer, autumn, winter and spring), in six replications. The evaluations were performed in a destructive manner every seven days, from date of transplant to harvest point. The following components were analyzed: number of leaves, number of residues, dry mass of leaves, dry mass of leaves, stem and residue. Thus, it was determined the parameters for growth analysis. With the data obtained, we performed a variance analysis, and presented significant results, and the means of each season of the year submitted to the Tukey test at 5% of error probability. The air temperature and global radiation influence crop cycle. Lower temperatures and lower incidence of radiation result in cycle extended, as observed in autumn. The escarole growth is influenced by seasons of year in Rio Grande do Sul (RS), and summer and spring finish the cycle in advance to others, presenting a larger leaf area. Summer and spring are most indicated season to escarole crop in RS, Brazil.
    Type of Medium: Online Resource
    ISSN: 1679-0359 , 1676-546X
    Language: Unknown
    Publisher: Universidade Estadual de Londrina
    Publication Date: 2018
    detail.hit.zdb_id: 2551446-5
    SSG: 22
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  • 3
    In: Comunicata Scientiae, Lepidus Tecnologia, Vol. 11 ( 2020-10-05), p. e3227-
    Abstract: Seedling production is a critical step in the establishment of vegetables. This work aimed to evaluate the effect of different spectral qualities on the germination and vigor of endive, lettuce, and chicory seeds. The experiment was carried out in three stages. The first stage, two cultivars of lettuce (‘Crespa Repolhuda’ and ‘Vera’) and six spectral qualities (blue LED, red LED, blue + red LED, white LED, fluorescent and dark) were evaluated; the second stage, two cultivars of chicory (‘Lisa Escarola’ and ‘Palla Rosa’) and the same spectral qualities were evaluated. In the third stage, the spectral quality of the endive cultivar ‘Pão de Açúcar’ was evaluated. The experiments were performed in a completely randomized design, with four replications of 50 seeds each. The evaluated parameters were: germination percentage, first count, germination speed index, seedling length, and fresh and dry mass. Endive, lettuce and chicory seeds germinated both in the presence or not of light so that they can be classified as neutral photos. A spectral LED of red quality fostered the development of the most significant volume of fresh mass on the endive, lettuce, and chicory. All the spectral qualities stimulated root growth. The dark, on the other hand, promoted the most significant length of the aerial part, promoting seedlings etiolation.
    Type of Medium: Online Resource
    ISSN: 2177-5133 , 2176-9079
    Language: Unknown
    Publisher: Lepidus Tecnologia
    Publication Date: 2020
    detail.hit.zdb_id: 2563565-7
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  • 4
    In: Australian Journal of Crop Science, Southern Cross Publishing, Vol. 11, No. 10 ( 2017-10-20), p. 1315-1319
    Type of Medium: Online Resource
    ISSN: 1835-2693 , 1835-2707
    URL: Issue
    Language: Unknown
    Publisher: Southern Cross Publishing
    Publication Date: 2017
    detail.hit.zdb_id: 2413553-7
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  • 5
    In: Journal of Agricultural Science, Canadian Center of Science and Education, Vol. 10, No. 5 ( 2018-04-11), p. 167-
    Abstract: The seedlings selection and the strawberry cultivars choice are fundamental to the productive success of a cultivation. Thus, the objective of this work was to evaluate the production of two strawberry cultivars with seedlings from different origins, in a conventional cultivation system under the low tunnel. The experiment was conducted in a randomized complete block design, in a 2 × 3 factorial scheme, two cultivars (Albion and San Andreas) and three different nurseries (Low altitude region/BR, High altitude region/BR and seedlings imported from the of Patagonia Region/AR) totaling six treatments, with four replicates and eight plants per plot. Phyllochron, number and production of commercials and non commercial fruits were determined. To the qualitative analysis, the acidity, total soluble solids and the relation total soluble solids/titratable acidity were determined. It was possible to observe that the Albion cultivar from all sources and the San Andreas of high altitude/BR presented the highest phyllochron values. The production of commercial fruits was higher for the Albion cultivar from high altitude/BR and Patagonia/AR, and to San Andreas cultivar of low altitude/BR. It was concluded that the phyllochron varies according to the cultivar and place of origin of the seedlings, being San Andreas cultivar of the low altitude/BR the one that requires less amounts of degree-days to emit a leaf. The Albion (high altitude/BR) cultivar has higher phyllochron, high productive potential and less production of non-commercial fruits, and can be used as a substitute for imported seedlings (Patagonia/AR), which will reflect in the costs reduction to the implantation of strawberry crops.
    Type of Medium: Online Resource
    ISSN: 1916-9760 , 1916-9752
    Language: Unknown
    Publisher: Canadian Center of Science and Education
    Publication Date: 2018
    detail.hit.zdb_id: 2501913-2
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  • 6
    Online Resource
    Online Resource
    Canadian Center of Science and Education ; 2019
    In:  Journal of Agricultural Science Vol. 11, No. 5 ( 2019-04-15), p. 131-
    In: Journal of Agricultural Science, Canadian Center of Science and Education, Vol. 11, No. 5 ( 2019-04-15), p. 131-
    Abstract: The culture of watermelon develops mainly under conditions of high temperature, being the temperature an element that directly affects the emission of vegetative and reproductive organs. There are no reports of the accumulation of temperature required for emission of branches, nodes and flowers. Thus, this experiment aimed to evaluate the rate of emission of vegetative and reproductive organs for hybrids of watermelon in relation to air temperature, using the hybrids of Manchester and Top Gun watermelons. The experiment was conducted in Federal University of Santa Maria, campus Frederico Westphalen-RS, from September to December 2014. Evaluations were conducted at every two days and it was determined the variables: nodes emission, final number of nodes on the main stem, number of primary and secondary ramifications and number of staminate flowers and open pistillate flowers related to accumulated thermal sum for the emission of such organs, and the ratio between the number of staminate flowers to the pistillate. The hybrids of watermelon present for plastochron of 18.8 & deg;C node day, final number of nodes of the main ramification of 43 and number of primary and secondary ramifications of eight and 20, respectively. For the emission of staminate and pistillate flowers the hybrids need an accumulation 10.5 and 46.7 & deg;C day, respectively. The number of staminate and pistillate flowers is 52 and nine, respectively, and the ration between flowers of 6.6:1.
    Type of Medium: Online Resource
    ISSN: 1916-9760 , 1916-9752
    Language: Unknown
    Publisher: Canadian Center of Science and Education
    Publication Date: 2019
    detail.hit.zdb_id: 2501913-2
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  • 7
    Online Resource
    Online Resource
    Revista Cultura Agronomica ; 2017
    In:  Cultura Agronômica: Revista de Ciências Agronômicas Vol. 26, No. 4 ( 2017-10-01), p. 584-595
    In: Cultura Agronômica: Revista de Ciências Agronômicas, Revista Cultura Agronomica, Vol. 26, No. 4 ( 2017-10-01), p. 584-595
    Abstract: The aim of work was to verify the effect of different shading levels in escarole crop, during summer in the northwest of Rio Grande do Sul. The experiment was conducted at the Federal University of Santa Maria, Frederico Westphalen RS Campus, in 2015 with Escarola Lisa escarole cultivar. The experimental design was a randomized complete block design with three shading levels (0%, 30%, 50%), with six replications. Growth evaluation were performed in destructive manner every seven days, from transplant to harvest point. From the information obtained, traits were determined: leaf area, leaf area index, leaf area ratio, specific leaf area, leaf weight ratio, biological productivity, absolute growth rate, relative growth rate, net assimilation rate. The data obtained were analyzed by the statistical program Genes, the Tukey test at 5% of error probability. The shading level 30% provided greater leaf area, higher biological productivity and absolute growth rate. However, the leaf area ratio was higher when shading level 50% was tested. However, it can be said that the shading levels favor growth of escarole crop.
    Type of Medium: Online Resource
    ISSN: 2446-8355 , 0104-1010
    Language: Unknown
    Publisher: Revista Cultura Agronomica
    Publication Date: 2017
    detail.hit.zdb_id: 2835874-0
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  • 8
    Online Resource
    Online Resource
    Sociedad Colombiana de Ciencias Horticolas ; 2018
    In:  Revista Colombiana de Ciencias Hortícolas Vol. 12, No. 1 ( 2018-01-01), p. 82-93
    In: Revista Colombiana de Ciencias Hortícolas, Sociedad Colombiana de Ciencias Horticolas, Vol. 12, No. 1 ( 2018-01-01), p. 82-93
    Abstract: El objetivo de este estudio fue evaluar el efecto de tratamientos de boro edáfico y frecuencia del calcio foliar en floración, sobre la producción y ocurrencia de la pudrición apical de híbridos de tomate italiano, cultivados en el sistema convencional en dos temporadas de cultivo. Se realizaron dos experimentos en el área experimental perteneciente a la Universidade Federal de Santa Maria, campus de Frederico Westphalen (Brasil), en los años 2012 y 2013. El diseño experimental fue de bloques al azar con un arreglo factorial 2×2×3×3 cuyo factores fueron dos híbridos (San Vito y Neptuno), en dos épocas de cultivo (primavera-verano y verano-otoño), tres dosis de boro (0; 2,0 y 4,0 g/planta) y tres frecuencias de aplicación de calcio (ausencia de aplicación, aplicación semanal y quincenal) y cuatro repeticiones. El trasplante de plántulas se realizó el día 04 de septiembre de 2012 para la primavera-verano y el 26 de enero para el verano-otoño. El híbrido Neptuno es más productivo en comparación con el híbrido San Vito, pero más susceptible a la pudrición apical. Las dos épocas de cultivo pueden ser recomendadas para el cultivo del tomate italiano en Rio Grande do Sul, aunque el cultivo de primavera-verano presenta mayor productividad cuando se compara al verano-otoño. La frecuencia de aplicación quincenal de CaCl2 al 0,6% se constituye en la mejor opción de manejo de fertilización, en el sentido de obtener mayor productividad y menor número de frutos con incidencia de pudrición apical. El incremento de la dosis de boro condiciona mayor número de frutos por planta y aumento de la productividad.
    Type of Medium: Online Resource
    ISSN: 2422-3719 , 2011-2173
    Language: Unknown
    Publisher: Sociedad Colombiana de Ciencias Horticolas
    Publication Date: 2018
    SSG: 7,36
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  • 9
    Online Resource
    Online Resource
    Universidade Estadual de Maringa ; 2019
    In:  Acta Scientiarum. Biological Sciences Vol. 41 ( 2019-12-10), p. e47105-
    In: Acta Scientiarum. Biological Sciences, Universidade Estadual de Maringa, Vol. 41 ( 2019-12-10), p. e47105-
    Abstract: In vitro propagation increases the supply and commercialisation of products of interest. For this, optimising the growing conditions and the composition of the culture medium is crucial to benefit the full development of the plants. Thus, the objective was to evaluate the in vitro propagation of Aloysia triphylla on different culture media, with varying agar and sucrose concentrations. The experiment was conducted as a completely randomised design, 3×3×3 factorial scheme, with three culture media (MS, JADS and WPM), three sucrose concentrations (8, 10 and 12 g L-1) and three agar concentrations (15, 30 and 45 g L-1), with three replicates each and experimental units composed of one plant per replicate. After 25 days of cultivation, the fresh and dry mass of the plants, numbers of leaves, numbers of nodes, plant lengths, numbers of oxidised leaves, hyperhydricity and acclimatization percentages were evaluated. The WPM medium resulted in a reduced fresh mass, reflecting in the low hyperhydricity observed in the explants, and favoured the acclimatization of the plants. Thus, the WPM medium with sucrose (15 g L-1) and agar (12 g L-1) is recommended as the medium most suitable for the in vitro regeneration of Aloysia triphylla.
    Type of Medium: Online Resource
    ISSN: 1807-863X , 1679-9283
    Language: Unknown
    Publisher: Universidade Estadual de Maringa
    Publication Date: 2019
    detail.hit.zdb_id: 2449349-1
    SSG: 7,36
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  • 10
    Online Resource
    Online Resource
    Canadian Center of Science and Education ; 2018
    In:  Journal of Agricultural Science Vol. 10, No. 2 ( 2018-01-12), p. 139-
    In: Journal of Agricultural Science, Canadian Center of Science and Education, Vol. 10, No. 2 ( 2018-01-12), p. 139-
    Abstract: The strawberry cultivars show variation in agronomic performance when grown in different regions of the world, due to the genotype × environment interaction. The aim of the study was to evaluate the yield performance and quality of Italian and American strawberry cultivars. We evaluated the phyllochron, which measures the time required for the emission of successive leaves in a plant, the number and commercial and non-commercial fruit yield, titratable acidity and total soluble solids (obtained from evaluations of the Brix degree of the fruit). The experimental design was a randomized complete block with 11 treatments, which were composed of the Italian strawberry cultivars (CREA-FRF PIR 29, CREA-FRF PA3, CREA-FRF CE 51, CREA-FRF CE 56, CREA-FRF Jônica and CREA-FRF Pircinque) and American (Albion, Camarosa, San Andreas, Camino Real and Aromas), with four replications per treatment, eight plants per plot, giving a total 32 plants per cultivar. Analysis of variance showed differences for phyllochron, marketable fruits yield and total soluble solids content. The American cultivar Albion showed higher phyllochron, the cultivar CREA-FRF Pircinque the lowest phyllochron. The highest yields of marketable fruits were found in American cultivars Camino Real and CREA-FRF Pircinque. The higher solids soluble was observed in Italian cultivars. Thus, we highlight the Italian strawberry cultivars, because they reflect good yield when compared to the American cultivars.
    Type of Medium: Online Resource
    ISSN: 1916-9760 , 1916-9752
    Language: Unknown
    Publisher: Canadian Center of Science and Education
    Publication Date: 2018
    detail.hit.zdb_id: 2501913-2
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