O Brasil é o maior produtor e exportador mundial de café e o Estado do Espírito Santo, o maior produtor nacional de café conilon (Coffea canephora). A variedade clonal ‘Incaper Vitória 8142’, desenvolvida para as condições encontradas no Estado, é composta por 13 genótipos com características de interesse. Objetivou-se com esse trabalho avaliar o crescimento e desenvolvimento inicial de mudas dos genótipos que compõem a variedade de café de Conilon ‘Incaper Vitória 8142 ‘, uma vez que tais informações podem auxiliar na implantação de lavouras com esta variedade. As mudas foram produzidas na Fazenda Experimental do Incaper, no município de Marilândia – ES e as avaliações realizadas no CEUNES-UFES em São Mateus - ES. Foram avaliados genótipos da variedade, em delineamento inteiramente casualizado com nove repetições. Efetuou-se a quantificação da produção de matéria seca, crescimento, desenvolvimento radicular, índice de qualidade de Dickson e conteúdo de nutrientes em diferentes partes das mudas. Os genótipos V8 e V10 apresentaram desenvolvimento superior aos demais genótipos. Nas condições avaliadas, os genótipos V2, V3, V4, V8, V9, V10, V11 e V12 apresentaram as melhores qualidades de mudas determinada por meio do índice de qualidade de Dickson. Nitrogênio e Ferro foram os nutrientes encontrados em maior concentração, independente do genótipo.
RESUMO -O trabalho foi desenvolvido em casa de vegetação no Campus do Centro de CiênciasAgrárias da Universidade Federal do Espírito Santo, Alegre-ES, com o objetivo avaliar a influência do substrato e da lâmina de água na germinação de sementes e no desenvolvimento pós-seminal de plantas de pimenta-malagueta. As sementes foram distribuídas em vasos contendo os substratos Latossolo Vermelho puro (LP), Latossolo Vermelho + cama de galinheiro (A) e Latossolo Vermelho + esterco bovino (B), aos quais foram aplicadas lâminas de água equivalentes a 25, 50, 75, 100 e 125% da evapotranspiração da cultura. O delineamento experimental foi em blocos casualizados, com quatro repetições, em esquema fatorial 3x5. Foram avaliadas as seguintes características: germinação, índice de velocidade de emergência (IVE), massa fresca e seca, altura de planta, diâmetro de coleto e volume de raiz. Os substratos A e B apresentaram melhores resultados em relação ao LP para todas as características avaliadas, sendo que para todas as características houve aumento nos valores em resposta ao aumento no fornecimento de lâminas de água.Termos para indexação: Capsicum frutescens L., irrigação, substratos.
PEPPER SEED GERMINATION AND SEEDLING DEVELOPMENT DUE TO SUBSTRATEAND WATER SHEET.ABSTRACT -This experiment was carried out in greenhouse at campus of Centre of agrarian sciences of the federal University of the Holy Spirit, in Alegre with objective to evaluate the influence of substrates and different water sheet on seed germination and plant development of plants of pepper. Seeds were sown in the following substrates were Red Latosol pure (LP), Red Latosol conditioned wiht fowl-run manure (A) and corral manure (B), treated with water at 25, 50, 75, 100 and 125% of culture evapotranspiration. The randomized complete blocks design was used, in factorial scheme 3x5 with four replications. The substrates A and B they presented better results in relation and AP for all the evaluated characteristics. Also for all the characteristics there was increase in the values in reply to the increase in the supply of water sheet.
Papaya seeds presents irregular and slow germination. In this sense, the evaluation of the internal morphology of the seeds may be viable and complementary in evaluating the physiological quality of seed. The objective of this study was to evaluate the morphological and physiological quality of papaya seeds extracted at different ripeness stages of the fruit and the position inside of the fruit. Papaya fruits were harvested at maturity stage 1 and the seeds extracted in stages 1, 3, 5 and full maturation. The fruits were cut into three portions of equal size. Seeds of the central portion and extremities were extracted separately. Were determined: seed germination (%), dormant seeds (%), accelerated aging, X-ray test and seedling length. A randomized design factorial was used with four replications. Data were subjected to analysis of variance and treatment means were compared by Tukey test at 5% probability. The results demonstrated that the post-harvest maturity of fruits improves the physiological quality of papaya seeds, promoting a reduction in the number of dormant and non-viable seeds. High physiological quality seeds is obtained from the central portion of fruits at fifth and final maturation stages, corresponding from 75% to 100% of maturation, respectively. The X-ray test proved to be adequate to evaluate the morphological quality of papaya seed, allowing distinguish between empty seeds and seed with normal embryo within a sample.Key words: Carica papaya L., germination, maturation, X-ray.
RESUMEN
-The osmotic conditioning and fungicide treatments of seeds have presented good results in vigor improvement and seedling protection against microorganisms associated to the seeds and soil, thus guaranteeing good stand establishment. The objective of this study was to evaluate the effect of osmotic conditioning and fungicide treatment on the physiological quality of beet seeds. The seeds were conditioned in water, KNO 3 (0.34 M), PEG 6000 (-0.8 MPa). The treatments with fungicides were: control (seeds treated by the seed producing Company with Thiran to 0,15%), metalaxil (0,004%), procimidone (0,1%) and metalaxil + procimidone (0,004 + 0,1%). The following characteristics were evaluated: first count, count on the eighth day and final day for the germination test; emergence, emergence speed and index of emergence speed in commercial substratum and soil. A randomized complete design was used, factorial arragement (conditioning x
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