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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.
11

Biodiversity, ecology and taxonomy of saprobic fungi on palm fronds /

Yanna. January 2001 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2001. / Includes bibliographical references.
12

Produção de mudas de Dypsis decaryi (Jum.) Beentje & J. Dransf. : efeito de tratamentos pré-germinativos e de substratos /

Dias, Jaine Aparecida de Camargo. January 2012 (has links)
Orientador: Regina Maria Monteiro de Castilho / Coorientador: Pedro Cesar dos Santos / Banca: Marco Eustaquio de Sa / Banca: Marcelo Vieira Ferraz / Resumo: O mercado nacional de flores e plantas ornamentais se encontra em plena expansão, principalmente o de mudas. Com o intuito de auxiliar os viveiristas quanto à produção de mudas, faz-se necessário buscar por estratégias que viabilizem a produção das mesmas. EXPERIMENTO I: O objetivo desse trabalho foi avaliar o efeito de tratamentos pré- germinativos e de diferentes substratos na germinação dos diásporos e no crescimento da parte aérea de plântulas de Dypsis decaryi. O experimento foi realizado na Universidade Estadual Paulista - UNESP, Campus de Ilha Solteira, conduzido em casa de vegetação (Pad & Fan, temp. 25oC ±3) no período de abril a setembro de 2011; delineamento foi o inteiramente casualizado em esquema fatorial 4 x 3, sendo 1 testemunha e 3 tratamentos pré-germinativos (escarificação mecânica; escarificação mecânica + submersão em água por 24h; submersão em água por 24h) e 3 substratos (areia, substrato comercial e vermiculita). Cada tratamento compôs-se de 100 diásporos, sendo que cada 10 destes constituiu uma repetição, assim, os mesmos foram postos a germinar em vasos de plástico preto (1,3L) preenchidos com os substratos correspondentes. Avaliou-se: % de germinação, índice de velocidade de germinação (IVG), tempo médio de germinação (TMG) e altura de parte aérea da plântula. A não escarificação das sementes, escarificação mecânica e escarificação mecânica + submersão em água por 24 h podem ser utilizadas para a germinação das sementes de D. decaryi. Maiores porcentagens de germinação foram obtidas quando se utilizou a vermiculita. O maior IVG, assim como o menor TMG, foram obtidos com a utilização de vermiculita aliado à escarificação mecânica + submersão em água por 24 h. O substrato Bioplant® proporcionou o maior incremento em altura... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The domestic market for flowers and ornamental plants is booming, especially seedlings. In order to assist the nursery on the seedling production, it is necessary to seek strategies that enable the production of the same. EXPERIMENT I: The objective of this study was to evaluate the effect of pre-germination treatments and different substrates on the germination of the seeds and shoot growth of seedlings of Dypsis decaryi. The experiment was conducted at the Universidade Estadual Paulista - UNESP, Ilha Solteira, conducted in a greenhouse (Pad & Fan, temp. 25 o C ± 3) in the period April to September 2011; design was completely randomized in a factorial 4 x 3, with 1 control and 3 pre-germination treatments (mechanical scarification; chiseling + submersion in water for 24 hours, submersion in water for 24 hours) and 3 substrates (sand, vermiculite and commercial substrate). Each treatment consisted of 100 diaspore, and 10 of these was a repetition, so they were made to germinate in black plastic pots (1.3 L) filled with the corresponding substrates. We evaluated: % germination, germination speed index (GSI), mean germination time (MGT) and height of the seedling shoot. Failure of seed scarification, chiseling and chiseling + submersion in water for 24 h can be used for seed germination of D. decaryi. Higher germination percentages were obtained when using the vermiculite. The largest IVG, as well as lower TMG were obtained with the use of vermiculite together with chiseling + submersion in water for 24 h. The substrate Bioplant ® provided the greatest height of the seedling shoot, but it was not affected by pre-germination treatments. EXPERIMENT II: The objective was to determine the most suitable substrate for the initial development of seedlings of D. decaryi. The seedlings resulting from the first experiment... (Complete abstract click electronic access below) / Mestre
13

Produção de mudas de Dypsis decaryi (Jum.) Beentje & J. Dransf: efeito de tratamentos pré-germinativos e de substratos

Dias, Jaine Aparecida de Camargo [UNESP] 24 August 2012 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:29:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-08-24Bitstream added on 2014-06-13T19:59:34Z : No. of bitstreams: 1 dias_jac_me_ilha.pdf: 430189 bytes, checksum: 26c6b78e26276b7502067db3fe784c82 (MD5) / Universidade Estadual Paulista (UNESP) / O mercado nacional de flores e plantas ornamentais se encontra em plena expansão, principalmente o de mudas. Com o intuito de auxiliar os viveiristas quanto à produção de mudas, faz-se necessário buscar por estratégias que viabilizem a produção das mesmas. EXPERIMENTO I: O objetivo desse trabalho foi avaliar o efeito de tratamentos pré- germinativos e de diferentes substratos na germinação dos diásporos e no crescimento da parte aérea de plântulas de Dypsis decaryi. O experimento foi realizado na Universidade Estadual Paulista - UNESP, Campus de Ilha Solteira, conduzido em casa de vegetação (Pad & Fan, temp. 25oC ±3) no período de abril a setembro de 2011; delineamento foi o inteiramente casualizado em esquema fatorial 4 x 3, sendo 1 testemunha e 3 tratamentos pré-germinativos (escarificação mecânica; escarificação mecânica + submersão em água por 24h; submersão em água por 24h) e 3 substratos (areia, substrato comercial e vermiculita). Cada tratamento compôs-se de 100 diásporos, sendo que cada 10 destes constituiu uma repetição, assim, os mesmos foram postos a germinar em vasos de plástico preto (1,3L) preenchidos com os substratos correspondentes. Avaliou-se: % de germinação, índice de velocidade de germinação (IVG), tempo médio de germinação (TMG) e altura de parte aérea da plântula. A não escarificação das sementes, escarificação mecânica e escarificação mecânica + submersão em água por 24 h podem ser utilizadas para a germinação das sementes de D. decaryi. Maiores porcentagens de germinação foram obtidas quando se utilizou a vermiculita. O maior IVG, assim como o menor TMG, foram obtidos com a utilização de vermiculita aliado à escarificação mecânica + submersão em água por 24 h. O substrato Bioplant® proporcionou o maior incremento em altura... / The domestic market for flowers and ornamental plants is booming, especially seedlings. In order to assist the nursery on the seedling production, it is necessary to seek strategies that enable the production of the same. EXPERIMENT I: The objective of this study was to evaluate the effect of pre-germination treatments and different substrates on the germination of the seeds and shoot growth of seedlings of Dypsis decaryi. The experiment was conducted at the Universidade Estadual Paulista - UNESP, Ilha Solteira, conducted in a greenhouse (Pad & Fan, temp. 25 o C ± 3) in the period April to September 2011; design was completely randomized in a factorial 4 x 3, with 1 control and 3 pre-germination treatments (mechanical scarification; chiseling + submersion in water for 24 hours, submersion in water for 24 hours) and 3 substrates (sand, vermiculite and commercial substrate). Each treatment consisted of 100 diaspore, and 10 of these was a repetition, so they were made to germinate in black plastic pots (1.3 L) filled with the corresponding substrates. We evaluated: % germination, germination speed index (GSI), mean germination time (MGT) and height of the seedling shoot. Failure of seed scarification, chiseling and chiseling + submersion in water for 24 h can be used for seed germination of D. decaryi. Higher germination percentages were obtained when using the vermiculite. The largest IVG, as well as lower TMG were obtained with the use of vermiculite together with chiseling + submersion in water for 24 h. The substrate Bioplant ® provided the greatest height of the seedling shoot, but it was not affected by pre-germination treatments. EXPERIMENT II: The objective was to determine the most suitable substrate for the initial development of seedlings of D. decaryi. The seedlings resulting from the first experiment... (Complete abstract click electronic access below)
14

Effects of soil and atmospheric drought on leaf gas exchange rates of plantation palms

Potulski, Nicole January 1990 (has links)
No description available.
15

Arizona Landscape Palms

Davison, Elizabeth, Begeman, John 12 1900 (has links)
16 pp. / The luxuriant tropical appearance and stately silhouette of palms add much to the Arizona landscape. Few other plants are as striking in low and mid elevation gardens. Although winter frosts and low humidity limit the choices somewhat, a good number of palms are available, ranging from the dwarf Mediterranean fan palm to the massive Canary Island date palm. This publication addresses the landscape use and the adaption of palms, as well as how to plant and take care of them. Topics include: . Landscape Use . Adaptation . Planting Palms . Care of Established Palms . Diseases and Insect Pests . Palms for Arizona . Feather Palms . Fan Palms . Palm-like Plants
16

Fruits and frugivores in a Brazilian Atlantic forest

Galetti, Mauro January 1996 (has links)
No description available.
17

Fibers from the forest mestizo, Afro-Ecuadorian and Chachi ethnobotany of piquigua (Heperopsis ecuadorensis, Araceae) and mocora (Astrocaryum standleyanum, Arecaceae) in northwestern Ecuador /

Fadiman, Maria Grace, January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references. Available also from UMI Company.
18

Characterisation, collection and conservation of Cocos nucifera L. in the south Pacific

Ashburner, Geoffrey Roger Unknown Date (has links)
The genetic resources of coconut palms (Cocos nucifera L.) in the south Pacific region were characterised using fruit morphological and molecular characters (RAPD). It was concluded that there was continuous variation in fruit morphology and molecular characters throughout the region. The south Pacific gene pool was considered to be composed of two groups, the first a cline of populations from Papua New Guinea across the central Pacific to the south eastern Pacific thought to represent the original gene pool of the Pacific, and the other was comprised of populations from the south western and south central Pacific and was thought to represent the original gene pool of the Pacific that has been affected by subsequent migration of domesticated types from elsewhere. The populations of Rennell Island, Marquesas Islands and Hawaii were members of this latter group but have diverged. The results of both the molecular and morphological characterisation were used to formulate a collection and conservation strategy for coconut germplasm in the region.
19

Fibers from the forest : Mestizo, Afro-Ecuadorian and Chachi ethnobotany of piquigua (Heteropsis ecuadorensis, Araceae) and mocora (Astrocaryum standleyanum, Arecaceae) in northwestern Ecuador /

Fadiman, Maria Grace. January 2003 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references (leaves 199-221). Also available on the Internet in PDF format.
20

Saw palmetto a phytochemical study of the fruit of Sabal serrulata /

Mann, Charles August. January 1915 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1915. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 52-60).

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