Paclobutrazol Arrests Vegetative Growth and Unveils Unexpressed Yield Potential of Jatropha curcas

Ghosh, Arup; Chikara, J.; Chaudhary, Doongar R.; Prakash, Amar; Boricha, Girish; Zala, A.

doi:10.1007/s00344-010-9137-0

Cited by 76 publications

(53 citation statements)

References 25 publications

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“…A desuniformidade de maturação dos frutos é uma característica dessa oleaginosa, que fl oresce constantemente durante o período das chuvas, sendo a colheita realizada após o acúmulo de três a quatro fl oradas de maior vigor. A predominância do componente ambiental em relação ao componente genético indica pequenos ganhos com a seleção, e que práticas de manejo têm maior potencial para alterar esta característica (GHOSH et al, 2010;GOUVEIA et al, 2012).…”

Section: Resultsunclassified

“…A verifi cação de que a uniformidade de maturação apresenta efeito ambiental predominante indica que práticas de manejo têm maior potencial para concentrar a colheita dessa oleaginosa. Trabalhos recentes indicam resultados promissores com a utilização de reguladores de crescimento para aumento da uniformidade de maturação e produção dessa oleaginosa (GHOSH et al 2010;GOUVEIA et al, 2012). Também se destaca a boa adaptação dessa oleaginosa à região, que se caracteriza pela alta pluviosidade e défi cit hídrico bem defi nido, que contribuem para uma colheita antecipada em relação a outras regiões do país, fora da época de incidência das principais pragas desse cultivo.…”

Section: Resultsunclassified

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Capacidade produtiva e progresso genético de pinhão-manso

Borges

Ferreira²,

Rocha

et al. 2014

Cienc. Rural

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Section: Resultsunclassified

Capacidade produtiva e progresso genético de pinhão-manso

Borges

Ferreira²,

Rocha

et al. 2014

Cienc. Rural

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“…Unlike most terrestrial agricultural applications that strive to optimize the use of a given area of arable land, spaceflight agriculture requires researchers to maximize volume use efficiency (VUE). This can be achieved through genetic manipulations, chemical interventions (e.g., exogenous growth regulators), the selection of dwarf cultivars, and through specific horticultural management practices utilizing standard crop species (Erwin et al 1994, Ghosh et al 2010, Graham & Wheeler 2016, Hollender et al 2015, Liang et al 2014. These dwarfing mechanisms are now being combined with advances in light emitting diode (LED) systems which, due to their cool operating temperature, allows for close proximity of the crop and light source, enabling significant improvements in VUE.…”

Section: Methodsmentioning

confidence: 99%

Mechanical Stimulation Modifies Canopy Architecture and Improves Volume Utilization Efficiency in Bell Pepper: Implications for Bioregenerative Life-support and Vertical Farming

Graham

Wheeler

2017

Open Agriculture

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Open Agriculture. 2017; 2: 42-51 vertical system requirements or by expanding the species range that can be grown in a fixed production volume. Mechanical stimulation is also discussed as a microgravity countermeasure for crop plants.Keywords: Thigmomorphogenesis, Plant Dwarfing, Capsicum annum 'California Wonder', Advanced LifeSupport, Vertical Agriculture IntroductionIt has long been recognized that mechanical stimulation (MS; stress), such as wind action, rubbing, constriction, shaking, and encounters with physical barriers can have a dramatic influence on plant morphological development (Biddington 1986, Darwin 1880, Jaffe 1973, Mitchell et al. 1975, Mitchell 1977. Jaffe (1973) demonstrated that daily MS to partially mature internode tissue, applied by rubbing stem tissue between two fingers, could induce dramatic reductions in internode length resulting in dwarf phenotypes in a range of crop species. Jaffe (1973) coined the term thigmomorphogenesis, (thigma being the Greek word for touch) to describe these long term morphological responses to touch. Over the ensuing 40 years many others have followed up on Jaffe's work, notably amongst others, Cary Mitchell's group at Purdue (West Lafayette, IN, USA), Joyce Latimer at Virginia Tech (Blacksburg, VA, USA), and Janet Braam at Rice University (Houston, TX, USA). It is now known that thigmomorphogenesis includes a wide range of responses including, but not limited to, shortening of internodes, stem thickening, reduced leaf expansion, changes in chlorophyll content, and alterations in plant hormone levels (Beyl & Mitchell 1983, Biddington 1986, Braam 2005, Chehab et al. 2008, Latimer et al. 1991, Mitchell & Myers 1995, Monshausen & Haswell 2013. Abstract: Mechanical stimuli or stress has been shown to induce characteristic morphogenic responses (thigmomorphogenesis) in a range of crop species. The typical mechanically stimulated phenotype is shorter and more compact than non-mechanically stimulated plants. This dwarfing effect can be employed to help conform crop plants to the constraints of spaceflight and vertical agriculture crop production systems. Capsicum annum (cv. California Wonder) plants were grown in controlled environment chambers and subjected to mechanical stimulation in the form of firm but gentle daily rubbing of internode tissue with a tightly wrapped cotton swab. Two studies were conducted, the first being a vegetative growth phase study in which plants were mechanically stimulated until anthesis. The second study carried the mechanical stimulation through to fruit set. The response during the vegetative growth experiment was consistent with other results in the literature, with a general reduction in all plant growth metrics and an increase in relative chlorophyll (SPAD) content under mechanical stimulation. In the fruiting phase study, only height and stem thickness differed from the control plants. Using the data from the fruiting study, a rudimentary calculation of volume use efficiency (VUE) improvements was conducted. Results suggest t...

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“…A obtenção de árvores aptas à colheita em curto espaço de tempo certamente dependerá de alterações fisiológicas da espécie. A utilização de reguladores de crescimento visando melhorar a qualidade da madeira, induzir a floração e retardar ou acelerar o crescimento vegetativo tem sido uma constante em pesquisas científicas de várias espécies (ABDELGADIR et al, 2009;XIONG et al, 2009;GHOSH et al, 2010;KIBA et al, 2010;DOORN et al, 2011;PAN et al, 2011;PEREIRA et al, 2011).…”

Section: Introductionunclassified

ANÁLISE DE CRESCIMENTO, INCIDÊNCIA DE Rhizoctonia sp. E EFEITO ANTIXENOSE PARA A FORMIGA-CORTADEIRA Atta sexdens rubropilosa F. EM CLONES DE Eucalyptus grandis x Eucalyptus urophylla TRATADOS COM GIBERELINA1

et al. 2015

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RESUMO -A competitividade do setor florestal brasileiro, fruto das condições climáticas e tecnologia empregada, faz que o país ocupe posição de destaque no cenário mundial. Apesar do elevado crescimento brasileiro no setor florestal, é necessário o desenvolvimento de pesquisas que proporcionem aumento de produtividade. Este estudo objetivou avaliar o efeito fisiológico da aplicação de diferentes concentrações de giberelina (GA 3 ) no acúmulo de biomassa do híbrido de Eucalyptus grandis x Eucalyptus urophylla "E. urograndis GG 100" e, também, verificar o efeito da aplicação de hormônio sobre a incidência de Rhizoctonia sp. e sobre efeito antixenose (não preferência) ao corte de folhas pela formiga-cortadeira Atta sexdens rubropilosa. O experimento foi conduzido em bancada a pleno sol, seguindo o delineamento inteiramente casualizado com cinco tratamentos e seis repetições. Mudas clonadas de E. urograndis GG 100, com 120 dias de idade, cultivadas sob bancada a pleno sol em vasos de 12 L, com substrato à base de subsolo, areia e esterco foram tratados com 50 mL de GA 3 , nas seguintes concentrações: 0; 50; 100; 150; e 200 mg L ANALYSIS OF Rhizoctonia SP. GROWTH, INCIDENCE AND ANTIXENOSIS EFFECT FOR LEAF-CUTTING ANT Atta sexdens rubropilosa F. IN CLONES OF Eucalyptus grandis x Eucalyptus urophylla TREATED WITH GIBBERELLINABSTRACT -The competitiveness of the forest sector in Brazil, as a result of climate conditions and technology used, makes the country occupy a prominent position on the world. Despite the high Brazilian growth in the forest sector, the development of research that provide increased productivity is necessary. This study aimed to evaluate the physiological effect of the application of gibberellic acid (GA 3 ) in the accumulation 1 Recebido em 06.07.2013 aceito para publicação em 07.07.2015.

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Paclobutrazol Arrests Vegetative Growth and Unveils Unexpressed Yield Potential of Jatropha curcas

Cited by 76 publications

References 25 publications

Capacidade produtiva e progresso genético de pinhão-manso

Capacidade produtiva e progresso genético de pinhão-manso

Mechanical Stimulation Modifies Canopy Architecture and Improves Volume Utilization Efficiency in Bell Pepper: Implications for Bioregenerative Life-support and Vertical Farming

ANÁLISE DE CRESCIMENTO, INCIDÊNCIA DE Rhizoctonia sp. E EFEITO ANTIXENOSE PARA A FORMIGA-CORTADEIRA Atta sexdens rubropilosa F. EM CLONES DE Eucalyptus grandis x Eucalyptus urophylla TRATADOS COM GIBERELINA1

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