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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Produ??o de helic?nia Golden Torch sob cultivo em al?ias. / Production of Heliconia Golden Torch under alley cropping.

Cirqueira, Andr? Luiz Oliveira 29 October 2009 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-08-22T15:27:16Z No. of bitstreams: 1 2009 - Andre Luiz Oliveira Cirqueira.pdf: 2107082 bytes, checksum: 332d5419e8942ce8ee1ccd478e906c34 (MD5) / Made available in DSpace on 2017-08-22T15:27:16Z (GMT). No. of bitstreams: 1 2009 - Andre Luiz Oliveira Cirqueira.pdf: 2107082 bytes, checksum: 332d5419e8942ce8ee1ccd478e906c34 (MD5) Previous issue date: 2009-10-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq, Brasil. / Tropical flower production has growing in Brazil, mostly by the recent interest of flower consumers on products with exotic shapes, vibrant colors and high durability. These flowers, not usual in Brazil, are still produced on low scale. Production systems have not been intensively exploited, as well as basic studies with the various varieties and species have not been conducted. Production systems that combine economic feasibility with low environmental impact should de developed for this plant group, since they adapt to a wide range of environmental conditions, including shade. Environment adaptation studies combined with mineral nutrition studies are necessary to understand and improve integrated tropical flower production, using other pla nt species under various environmental conditions. Alley cropping, used on this study, is an example of such integration. This research evaluated the performance of hybrid heliconia Golden Torch (Heliconia psittacorum L x Heliconia spathocircinada Aristigueta) under alley cropping with pigeonpea (Cajanus cajan (L.) Millsp.) and Flemingia macrophylla and a control treatment. Two rates of thermophosphate (Yorin Master 1) ? with or without, were combined to the previous treatments. The experiment was conducted at the Crop Science Department of Universidade Federal Rural do Rio de Janeiro. The experimental design was a split plot in complete randomized design. Lower heliconia mortality occurred on alleys formed by Cajanus cajan. Phosphate addition did not affect mortality. Higher yields of heliconia flowers were observed on Flemingia macrophylla alleys, followed by Cajanus cajan and control. Phsophate addition did not affect yields. Number of lateral shoots was affected by the plant position on the plot: central rows tended to have more shoots than lateral rows. Leaf area was higher where phosphate was applied, independently of alley cropping. / A floricultura tropical tem se projetado no Brasil, principalmente pelo recente interesse dos consumidores de flores, por produtos de formas ex?ticas, cores vibrantes e alta durabilidade. Essas flores, pouco tradicionais no Brasil, s?o produzidas ainda em pequena escala. Seus sistemas de produ??o ainda n?o foram intensivamente estudados, bem como estudos b?sicos envolvendo as muitas esp?cies e variedades ainda est?o por ser feitos. Sistemas de produ??o que conciliem viabilidade econ?mica com baixo impacto ambiental, devem ser desenvolvidos para esse grupo de plantas, visto que se adaptam a uma gama de condi??es ambientais, incluindo sombreamento. Estudos de ambi?ncia combinados aos de nutri??o mineral s?o necess?rios para se entender e aperfei?oar uma forma de floricultura tropical integrada a outras esp?cies, em diferentes condi??es edafoclim?ticas. Um exemplo ? o sistema de cultivo em al?ias, objeto deste estudo. Este trabalho teve como objetivo avaliar o comportamento do hibrido natural Golden Torch (Heliconia psittacorum L x Heliconia spathocircinada Aristigueta) cultivada sob sistema de cultivo em al?ias formadas por dois tipos de leguminosas arbustivas: guandu (Cajanus cajan (L.) Millsp.) e flem?ngia (Flemingia macrophylla), e um controle sem forma??o de al?ias. Combinou-se ainda, dois tipos de aduba??o de plantio: com e sem termofosfato magnesiano (Yoorin Master 1). O experimento foi conduzido nas condi??es da Baixada Fluminense no Campus da UFRRJ, Departamento de Fitotecnia, num delineamento de parcelas subdivididas em blocos ao acaso. Houve menor mortalidade de plantas nas al?ias formadas por guandu quando comparada com as formadas por flem?ngia ou no tratamento controle. A aplica??o de termofosfato n?o teve qualquer efeito. A maior produtividade de infloresc?ncias ocorreu nas al?ias formadas por flem?ngia, seguida pelo guando e a testemunha. A adi??o de termofosfato n?o afetou a produ??o de infloresc?ncias. O n?mero de perfilhos, foi afetado pela posi??o da planta na parcela: as da linha central tenderam a ter mais perfilhos do que as laterais. A ?rea foliar das plantas de helic?nia foi maior nos tratamentos com termofosfato, independentemente do tipo de al?ia.

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