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Flowers have been designed primarily for cutting because of the diversity of shapes, colors and also durability. However, ornamental plants are used in floral arrangements in vases and have limited shelf-life. Thus, this study showed that one of the factors contributing to this limitation is the physiological blockage that occurs in plants in response to stress imposed by harvest. Key words: Flowers, stress, physiological blockage, harvest.

Made available in DSpace on 2013-08-28T14:14:35Z (GMT). No. of bitstreams: 1 WOS000299739400013.pdf: 3860392 bytes, checksum: 9e3e6b682d54493e9b396d053af51507 (MD5) Made available in DSpace on 2013-09-30T18:40:53Z (GMT). No. of bitstreams: 2 WOS000299739400013.pdf: 3860392 bytes, checksum: 9e3e6b682d54493e9b396d053af51507 (MD5) WOS000299739400013.pdf.txt: 19512 bytes, checksum: bdde415be3356cf2ea73d55e84c8b0ba (MD5) Previous issue date: 2011-11-14 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:53:40Z No. of bitstreams: 2 WOS000299739400013.pdf: 3860392 bytes, checksum: 9e3e6b682d54493e9b396d053af51507 (MD5) WOS000299739400013.pdf.txt: 19512 bytes, checksum: bdde415be3356cf2ea73d55e84c8b0ba (MD5) Made available in DSpace on 2014-05-20T13:53:40Z (GMT). No. of bitstreams: 2 WOS000299739400013.pdf: 3860392 bytes, checksum: 9e3e6b682d54493e9b396d053af51507 (MD5) WOS000299739400013.pdf.txt: 19512 bytes, checksum: bdde415be3356cf2ea73d55e84c8b0ba (MD5) Previous issue date: 2011-11-14 The aim of the present work was to evaluate the quality of chrysanthemum cultivar Faroe, subjected to different gibberellic acid (GA(3)) concentrations applied to the field. The treatments were composed of four doses of GA(3) (0, 15, 30 and 45 mg L-1) applied at the beginning of the formation of buttom floral (28 days after transplanting of seedlings). According to the results, a single low concentration of GA(3) application did not interfere with the phenotypic characteristics of the chrysanthemum cultivar Faroe. Univ Estadual Paulista, Dept Prod Vegetal Hort, BR-18601060 Botucatu, SP, Brazil Univ Estadual Paulista, Dept Quim & Bioquim, Inst Biociencias, BR-18601060 Botucatu, SP, Brazil Univ Fed Campina Grande, Pombal, PB, Brazil Univ Estadual Paulista, Dept Prod Vegetal Hort, BR-18601060 Botucatu, SP, Brazil Univ Estadual Paulista, Dept Quim & Bioquim, Inst Biociencias, BR-18601060 Botucatu, SP, Brazil

Cut flowers have a very limited life after they have been cut off from the mother plant, as survival on their own reserves is generally low due to the special morphological and physiological characteristics of their tissues. The use of refrigeration for storage of flower cuttings is very important because it reduces water loss, senescence, infections caused by bacteria and fungi, thus extending the shelf-life of flowers during the storage period. Therefore, the aim of the present work is to show differences between requirements of various species of flowers during refrigerated storage. Keywords: Cooling, post-harvest, conservation, flowers, cold injury

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:59:53Z No. of bitstreams: 1 S0034-737X2010000600015.pdf: 116616 bytes, checksum: 2166f6b854fa8167b72af25b91c7e067 (MD5) Made available in DSpace on 2013-08-22T18:59:53Z (GMT). No. of bitstreams: 1 S0034-737X2010000600015.pdf: 116616 bytes, checksum: 2166f6b854fa8167b72af25b91c7e067 (MD5) Previous issue date: 2010-12-01 Made available in DSpace on 2013-09-30T19:57:23Z (GMT). No. of bitstreams: 2 S0034-737X2010000600015.pdf: 116616 bytes, checksum: 2166f6b854fa8167b72af25b91c7e067 (MD5) S0034-737X2010000600015.pdf.txt: 33077 bytes, checksum: 8a4d1fef47a6c9f24fa401cc8d8b7d64 (MD5) Previous issue date: 2010-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:14:54Z No. of bitstreams: 2 S0034-737X2010000600015.pdf: 116616 bytes, checksum: 2166f6b854fa8167b72af25b91c7e067 (MD5) S0034-737X2010000600015.pdf.txt: 33077 bytes, checksum: 8a4d1fef47a6c9f24fa401cc8d8b7d64 (MD5) Made available in DSpace on 2014-05-20T15:14:54Z (GMT). No. of bitstreams: 2 S0034-737X2010000600015.pdf: 116616 bytes, checksum: 2166f6b854fa8167b72af25b91c7e067 (MD5) S0034-737X2010000600015.pdf.txt: 33077 bytes, checksum: 8a4d1fef47a6c9f24fa401cc8d8b7d64 (MD5) Previous issue date: 2010-12-01 A pitaya é uma espécie vegetal trepadeira e frutífera, pertencente à família das cactáceas e que vem se destacando no mercado de frutas exóticas no Brasil. Objetivou-se avaliar diferentes substratos no enraizamento de cladódios com a base imersa e não-imersa em solução com ácido bórico, na formação e no desenvolvimento inicial de raízes, visando à obtenção de mudas mais vigorosas, de melhor qualidade e com maiores chances de sobrevivência. O experimento foi conduzido sob ripado no Departamento de Produção Vegetal, setor de Horticultura da Faculdade de Ciências Agronômicas no campus de Botucatu, UNESP, São Paulo. O delineamento experimental foi o inteiramente casualizado em esquema fatorial 4 x 2 (substratos x boro), com quatro repetições. Após 60 dias da instalação do experimento foram avaliados: massa de matérias fresca e seca da parte aérea, massa de matérias fresca e seca das raízes e comprimento da maior raiz. O crescimento e desenvolvimento radicular inicial de estacas são influenciados pelo tipo de substrato e pelo uso do micronutriente boro. A mistura areia + esterco proporciona maior acúmulo de fitomassa na parte aérea e no sistema radicular de pitaya vermelha. Dentre os substratos trabalhados, o mais indicado para a produção de mudas mais vigorosas e de boa qualidade é o preparado à base de mistura de areia + esterco bovino curtido. Pitaya, a climbing fruit species belonging to the cactus family, has been largely commercialized in the Brazilian exotic fruit market. This study aimed to evaluate the effect of different substrates on the rooting of cladodes with the base immersed or not in boric acid solution. There was also evaluated the formation and initial development of roots, resulting in more vigorous, high-quality seedlings with higher survival rates. The experiment was carried out in a lath house of the Department of Plant Production, Horticulture Sector, College of Agronomical Sciences, Botucatu Campus, São Paulo State University (UNESP). The experiment was arranged in a complete randomized design, in a 4x2 (substrates x boron) factorial arrangement, with four replicates. Sixty days after the experiment establishment, shoot fresh and dry matter, root fresh and dry matter, and the highest root length were evaluated. The initial root growth and development of cuttings were affected by the substrates and boron. Sand+manure provided higher phytomass accumulation in the shoot and root system of red pitaya. Among the substrates, the treatment sand + cattle manure was the most suitable to produce more vigorous and high-quality seedlings. Universidade do Estado de São Paulo (UNESP) Faculdade de Ciências Agrárias Departamento de Produção Vegetal UNESP Faculdade de Ciências Agrárias Departamento de Produção Vegetal UNESP Instituto de Biologia Departamento de Botânica Universidade do Estado de São Paulo (UNESP) Faculdade de Ciências Agrárias Departamento de Produção Vegetal UNESP Faculdade de Ciências Agrárias Departamento de Produção Vegetal UNESP Instituto de Biologia Departamento de Botânica

Made available in DSpace on 2014-12-03T13:10:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01Bitstream added on 2014-12-03T13:22:57Z : No. of bitstreams: 1 WOS000328276600041.pdf: 331009 bytes, checksum: c3f323cc3492a86ff7d73475e83751e2 (MD5) The almost complete absence or misdistribution of water as a natural resource frequently constitute a limiting factor for plant growth and development in the semi-arid northeastern Brazil. In this context, the use of appropriate irrigation techniques is an essential and indispensable factor for proper functioning of the primary and secondary metabolisms in plants. This study aimed to assess the metabolism of the Syrah grapevine in the semi-arid northeastern Brazil, by using three irrigation strategies (controlled deficit irrigation [CDI], deficit irrigation [DI], and full irrigation [FI]). The research was conducted at Embrapa Semiarid (Embrapa-Brazilian Agricultural Research Corporation), Experimental Field of Bebedouro, municipality of Petrolina, state of Pernambuco, Brazil. The statistical design was randomized blocks, with a 3 x 6 factorial scheme. Six samplings were performed throughout the experiment cycle at 54, 60, 73, 87, 101, and 115 days after pruning (DAP). We analyzed the total soluble sugars, reducing sugars, total soluble protein, and invertase activity. Analysis of variance and the F test were performed for all analyzed variables. The means were compared using the Tukey test at 5% significance. At the end of the experiment cycle, DI was found to increase the average acid invertase activity in the plant cell wall. Further, by the end of the experiment cycle, the total soluble sugars and reducing sugars increased in all plants in the three irrigation strategies. Thus, we conclude that it is possible to reduce water consumption in vineyards of the semi-arid northeastern Brazil, without significantly affecting the protein and sugar metabolisms in the plants. IF Sertao PE, Inst Fed Sertao Pernambucano, Petrolina, PE, Brazil Univ Fed Reconcavo Bahia, Curso Posgrad Solos & Qualidade Ecossistemas, Cruz das Almas, BA, Brazil Univ Estadual Paulista, UNESP, Inst Biociencias, Dept Bot, Botucatu, SP, Brazil Univ Estadual Paulista, UNESP, Inst Biociencias, Dept Bot, Botucatu, SP, Brazil