Changes in gibberellin levels in the flowering shoot ofPhalaenopsis hybrida under high temperature conditionswhen flower development is blocked

Su, Wei-Ren; Chen, Wen-Shaw; Koshioka, Masaji; Mander, Lewis N.; Hung, Li-Sang; Chen, Wen-Huei; Fu, Yang-Ming; Huang, Kuang-Liang

doi:10.1016/s0981-9428(00)01218-3

Cited by 41 publications

(26 citation statements)

References 19 publications

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“…Following inflorescence induction, gibberellin plays a role in the induction of flowers (cf. Su et al, 2001). At low induction temperatures, gibberellin levels in the plant increase and flowers develop (Chen et al, 1994;Su et al, 2001); on inflorescences at higher temperatures, flowers do not develop (Su et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Can a high red: Far red ratio replace temperature-induced inflorescence development in Phalaenopsis?

Dueck

Trouwborst²,

Hogewoning³

et al. 2016

Environmental and Experimental Botany

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Section: Introductionmentioning

confidence: 99%

Can a high red: Far red ratio replace temperature-induced inflorescence development in Phalaenopsis?

Dueck

Trouwborst²,

Hogewoning³

et al. 2016

Environmental and Experimental Botany

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“…Wholesales of potted orchids reached $100 million in 2001, and were estimated at $144 million in 2005 (Jerardo 2006). Extensive research on the physiology of Phalaenopsis flower induction (Blanchard and Runkle 2006;Li et al 2006;Su et al 2001;Wang et al 2002) has undoubtedly contributed to the commercial success of this genera by decreasing time to flowering, thus lowering per unit production costs and retail sale prices. It has been estimated that prior to 2003, as many as 90% of all orchids sold were Phalaenopsis species and hybrids (Nash 2003).…”

Section: Introductionmentioning

confidence: 99%

Asymbiotic germination of ornamental Vanda: in vitro germination and development of three hybrids

Johnson

Kane

2007

Plant Cell Tiss Organ Cult

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The majority of potted flowering orchids sold in the United States are Phalaenopsis hybrids. However, demand for other genera will undoubtedly increase as consumers become accustomed to growing orchids in the home. The objective of this study was to compare the germination and development of three Vanda hybrids, a genus with mass market potential. Specifically, we evaluated whether hybrids with different pedigrees have significantly different culture requirements. After 12 weeks culture, differences in germination and development were found among the three hybrids screened. Generally, seeds of Vanda Motes Primrose · Ascocenda Tavivat (hybrid S014) showed higher germination (82.0-95.3%) than seeds of V. Paki · (V. tessellata · V. cristata; hybrid S005) or (V. Joan Warne · V. Paki) · V. Loke (hybrid S013) when cultured on Knudson C, halfstrength Murashige & Skoog, or PhytoTechnology Orchid Seed Sowing Medium under three photoperiods (8/16 h, 12/12 h, 16/12 h; light/dark). Protocorms of S005 and S013 did not develop beyond Stage 3 (first leaf present) under any of the conditions tested, while S014 seeds cultured on PhytoTechnology Orchid Seed Sowing Medium developed to Stage 4 (one leaf and ‡1 roots present; 0.5-0.6%) and 5 (two leaves and ‡1 roots present; 2.7-5.6%) under all photoperiods tested. All hybrids appeared to undergo similar early development (Stages 0-3). Limited advanced development of Hybrids S005 and S013 may be due either to inadequate culture conditions or low vigor of these hybrids. These data indicate that commercial production of some Vanda hybrids may be limited by slow growth and development. Efforts to breed hybrids which germinate and develop rapidly may be required to improve the mass market potential of Vanda hybrids.

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“…Estes autores sugerem que a giberelina provavelmente tenha interferido na síntese e na produção de outras substâncias promotoras de crescimento ou de seus precursores, os quais seriam diretamente controlados por meio de adequado tratamento a baixas temperaturas. Su et al (2001) sugeriram que tanto a aplicação de giberelina, quanto giberelinas endógenas, em plantas cultivas sob baixas temperaturas, agem no desenvolvimento das inflorescências e dos botões florais.…”

Section: Resultsunclassified

Indução de florescimento de plantas de ciclâmen após a aplicação de GA3

et al. 2008

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RESUMOA floricultura brasileira vem se destacando como alternativa econômica de cultivo agrícola. Uma das dificuldades de expansão desta atividade é o baixo consumo destes produtos pelos brasileiros, o que em parte pode ser explicado pelo seu alto custo. A aplicação de reguladores de crescimento pode reduzir este custo e aumentar a qualidade das plantas envasadas. Neste contexto, a giberelina tem mostrado atuar na indução de florescimento e na antecipação da antese. O ciclâmen (Cyclamen persicum Mill.) é uma planta ornamental cultivada em vaso que apresenta alto custo de produção. Assim, objetivou-se com este trabalho avaliar o efeito da aplicação do ácido giberélico (GA 3 ) sobre o florescimento de ciclâmen. O experimento foi conduzido em área de produção comercial de ciclâmen localizada no município de Quatro Barras (PR). Duas cultivares de ciclâmen, cv. Concerto Scarlet Caruso ® e Concerto Purple Papagenoa ® foram tratadas com GA 3 a 0, 15, 30, 45 e 60mgL -1 . Os tratamentos foram distribuídos em delineamento inteiramente casualizado, com arranjo fatorial (2x5). Melhores resultados foram observados na cultivar Concerto Scarlet Caruso ® com 45 mgL -1 de GA 3 e na cultivar Concerto Purple Papagenoa ® com 30 mgL -1 de GA 3. Em ambas as cultivares foi observado efeito fitotóxico quando foi aplicado 60 mgL -1 de GA 3. . Termos para indexação:Regulador de crescimento, giberelina, ácido giberélico, planta ornamental, Cyclamen persicum. ABSTRACTBrazilian floriculture has demonstrated to be an economical alternative as agricultural crop. One of the difficulties for the expansion of this local activity is the low consumption of these products by Brazilians, which may be partially explained by its high cost. Plant growth regulators might reduce this cost and increase quality. Cyclamen (Cyclamen persicum Mill.) is an ornamental plant cultivated in vase with high production cost. The aim of this trial was to evaluate the effects of gibberellic acid (GA 3 ) on the cyclamen flowering. It was performed in a grower, located in Quatro Barras, Paraná State, Brazil. Two cyclamen cultivars were evaluated, Concerto Scarlet Caruso and Concerto Purple Papagenoa , with GA 3 at 0, 15, 30, 45 and 60 mgL -1 . Better results were observed for Concerto Scarlet Caruso with 45 mgL -1 and Concerto Purple Papagenoa with 30 mgL -1 of GA 3. Both cultivars showed fitotoxic effects at 60 mgL -1 of GA 3 .

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Changes in gibberellin levels in the flowering shoot ofPhalaenopsis hybrida under high temperature conditionswhen flower development is blocked

Cited by 41 publications

References 19 publications

Can a high red: Far red ratio replace temperature-induced inflorescence development in Phalaenopsis?

Can a high red: Far red ratio replace temperature-induced inflorescence development in Phalaenopsis?

Asymbiotic germination of ornamental Vanda: in vitro germination and development of three hybrids

Indução de florescimento de plantas de ciclâmen após a aplicação de GA3

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