Consulta: subjectFacets:"Jatropha"
Registros recuperados: 15
Data/hora: 10/06/2024 01:14:39

Realidade e futuro do pinhão manso (Jatropha curcas L.) na produção sustentável de biodiesel no Vale do Paraíba/SP
Provedor de dados: 25
Autores: Ferreira, Willian J.; Batista, Getulio T.
A utilização mais eficiente de energia e a transição de fontes fósseis para alternativas energéticas renováveis têm sido propostas desafiadoras para o mundo atual. Cresce o número de pesquisas no setor dos biocombustíveis e existem motivações para a produção e uso do biodiesel. No Vale do Paraíba/SP, o pinhão manso tem despertado o interesse dos produtores rurais e seu plantio em áreas degradadas favorecerá o melhoramento das propriedades do solo e das condições ambientais. Ao criar cenários de otimismo à  cadeia produtiva do biodiesel a espécie se torna um importante elemento de sustentabilidade, fomentando o desenvolvimento da região.
Tipo: Presentation
Palavras-chave: Jatropha; Energia alternativa; Biodiesel; Mudanças climáticas.
Ano: 2010
URL: http://hdl.handle.net/2315/157

Jatropha cultivation in Malawi and Mozambique: impact on ecosystem services, local human well-being, and poverty alleviation
Provedor de dados: 7
Autores: von Maltitz, Graham P.; CSIR, South Africa; Nelson Mandela Metropolitan University, South Africa; gvmalt@csir.co.za; Gasparatos, Alexandros; Integrated Research System for Sustainability Science (IR3S), University of Tokyo, Tokyo, Japan; gasparatos@ir3s.u-tokyo.ac.jp; Fabricius, Christo; Sustainability Research Unit, Nelson Mandela Metropolitan University, South Africa; christo.fabricius@nmmu.ac.za; Morris, Abbie; Independent development practitioner, Malawi; Chittock.abbie@gmail.com; Willis, Kathy J.; Department of Zoology, University of Oxford, UK; Royal Botanical Gardens Kew, UK; kathy.willis@zoo.ox.ac.uk.
Jatropha-based biofuels have undergone a rapid boom-and-bust cycle in southern Africa. Despite strong initial support by governments, donors, and the private sector, there is a lack of empirical studies that compare the environmental and socioeconomic impacts of Jatropha&amp;#8217;s two dominant modes of production: large plantations and smallholder-based projects. We apply a rapid ecosystem services assessment approach to understand the impact of two Jatropha projects that are still operational despite widespread project collapse across southern Africa: a smallholder-based project (BERL, Malawi) and a large plantation (Niqel, Mozambique). Our study focuses on changes in provisioning ecosystem services such as biofuel feedstock, food, and woodland products...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biofuels; Ecosystem services; Jatropha; Malawi; Mozambique; Smallholders.
Ano: 2016

The Local Social and Environmental Impacts of Smallholder-Based Biofuel Investments in Zambia
Provedor de dados: 7
Autores: German, Laura; Center for International Forestry Research; L.GERMAN@cgiar.org; Schoneveld, George  C.; Center for International Forestry Research; G.Schoneveld@cgiar.org; Gumbo, Davison; Center for International Forestry Research; D.Gumbo@cgiar.org.
High oil prices, recent commitments by industrialized countries to enhance the use of renewable energy, and efforts by developing countries to stimulate foreign investment as a pathway to development have fueled high levels of interest in the biofuel sector throughout much of sub-Saharan Africa. Zambia is no exception. A large, land-locked country with high pump prices and vast tracts of land considered by many to be &amp;#8220;degraded&amp;#8221; or &amp;#8220;underutilized,&amp;#8221; investor interest in the sector has remained high despite uncertainties associated with unproven feedstocks and market fluctuations. While investment in multiple feedstock and production models may be observed, one of the primary investments has been in jatropha outgrower...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biofuels; Jatropha; Outgrower scheme; Zambia.
Ano: 2011

Repetitive element palindromic PCR (rep-PCR) as a genetic tool to study interspecific diversity in Euphorbiaceae family
Provedor de dados: 69
Autores: Rampadarath,Sillma; Puchooa,Daneshwar; Bal,Subhasisa.
Background The classification of diversity in germplasm collections is important for plant breeding. The repetitive element palindromic-polymerase chain reaction (rep-PCR) technique was used to investigate inter-specific diversity within 17 species from the Euphorbiaceae family using REP and BOX primers. Results The agglomerative cluster analysis was used to evaluate the scoring data. BOX and REP gave amplification with polymorphism of 98.84% and 100% respectively. REP marker demarcated between the subgenus peltatae. Both markers confirmed Jatropha tanjorensis as a natural hybrid between Jatropha gossypifolia and Jatropha curcas. Five random sequences from the rep-PCR gels were chosen, cloned and sequenced. The blast results demonstrated that the amplified...
Tipo: Journal article
Palavras-chave: Euphorbiaceae; Genetic diversity; Jatropha; Mitochondrial genome; Rep-PCR.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600005

Over-expression of CYP78A98, a cytochrome P450 gene from Jatropha curcas L., increases seed size of transgenic tobacco
Provedor de dados: 69
Autores: Tian,Yinshuai; Zhang,Min; Hu,Xiaole; Wang,Linghui; Dai,Jiao; Xu,Ying; Chen,Fang.
Background: Jatropha curcas L. (further referred to as Jatropha), as a rapidly emerging biofuel crop, has attracted worldwide interest. However, Jatropha is still an undomesticated plant, the true potential of this shrub has not yet been fully realized. To explore the potential of Jatropha, breeding and domestication are needed. Seed size is one of the most important traits of seed yield and has been selected since the beginning of agriculture. Increasing the seed size is a main goal of Jatropha domestication for increasing the seed yield, but the genetic regulation of seed size in Jatropha has not been fully understood. Results: We cloned CYP78A98 gene from Jatropha,a homologue of CYP78A5 in Arabidopsis.Wefound that CYP78A98 was highly expressed in male...
Tipo: Journal article
Palavras-chave: Biodiesel; Breeding; CYP78A5; Jatropha.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000100003

Pinhão-manso - Jatropha curcas L.
Provedor de dados: 14
Autores: DRUMOND, M. A.; ARRUDA, F. P. de; ANJOS, J. B. dos.
Distribuição Geográfica; Descrição da espécie; Principais usos; Cultivo; Principais pragas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Pinhão manso.; Pinhão de Purga; Praga; Planta Oleaginosa.; Jatropha.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/161508

Jatropha: Jatropha cultivar with higher oil productivity.
Provedor de dados: 14
Autores: LAVIOLA, B. G.
Jatropha cultivar with higher oil productivity for insertion in the biofuel energy matrix in Brazil.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Biocombustível; Biofuels; Jatropha; Plant breeding.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132872

A revision of Jatropha (Euphorbiaceae) in Malesia
Provedor de dados: 16
Autores: Welzen, P.C. van; Sweet, F.S.T.; Fernández-Casas, F.J.
Jatropha, a widespread, species rich genus, ranges from the Americas and Caribbean to Africa and India. In Malesia five species occur, all of which were introduced and originated in Central and South America. The five species are revised and an identification key, nomenclature, descriptions, distributions, ecology, vernacular names, uses and notes are provided. Special attention is given to the uses of J. curcas, because it is steadily gaining popularity as a potential biofuel plant and, because of that, is being cultivated more often.
Tipo: Article / Letter to the editor
Palavras-chave: Euphorbiaceae; Introduced species; Invasive species; Jatropha; Malesia; Revision.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/627810

Cnidoscolus (Euphorbiaceae) escaped in Malesia?
Provedor de dados: 16
Autores: Welzen, P.C. van; Fernández-Casas, F.J.
The genus Cnidoscolus, a species rich genus in the Americas, has been introduced in the Philippines. A cultivar of Cnidoscolus aconitifolius is used as vegetable and has been collected from gardens in Manila and Pasay City and two times near Cebu City. It cannot be excluded that it has escaped cultivation there, but the species does not appear to be invasive.
Tipo: Article / Letter to the editor
Palavras-chave: Cnidoscolus; Euphorbiaceae; Introduced species; Jatropha; Malesia; Revision.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/627817

Economic Benefits and Costs of Jatropha Plantation in North-East India
Provedor de dados: 31
Autores: Goswami,   Kishor; Saikia,   Jitu; Choudhury,   Hari Kanta.
Energy security, emissions control and environmental concerns are some of the issues that drive India to search for bio-fuels in general and bio-diesel in particular as an alternative source of energy. The inception of National Biofuel Mission in 2003 has resulted in expansion of jatropha plantations in different states of the country. In North-East India, jatropha plantation was started in 2007, mostly at small farmers’ level with direct and indirect initiatives of the government and the private sector. However, adoption and expansion of jatropha plantation in the rural areas largely depend on profitability from such plantations at farmers’ level. The present study has assessed the profitability of jatropha plantation in four states of North-East India,...
Tipo: Journal Article
Palavras-chave: Jatropha; Bio-fuels; Bio-diesel; North-East India; Cost-benefit analysis; Agricultural and Food Policy; Q16; Q49; Q42.
Ano: 2011
URL: http://purl.umn.edu/109423

Comportamento fenológico de três espécies de Jatropha (Euphorbiaceae) da Caatinga, semi-árido do Brasil
Provedor de dados: 88
Autores: Neves,Edinaldo Luz das; Funch,Ligia Silveira; Viana,Blandina Felipe.
O comportamento fenológico vegetativo e reprodutivo de Jatropha mollissima (Pohl) Baill., Jatropha mutabilis (Pohl) Baill. e Jatropha ribifolia (Pohl) Baill. foi comparado em uma área de caatinga hiperxerófila arbustiva-arbórea do nordeste brasileiro, no período de julho de 2005 a junho de 2007. Adicionalmente, investigou-se a correlação entre as fenofases e as variáveis abióticas (temperatura, umidade relativa, precipitação e fotoperíodo), a capacidade de armazenamento de água e o padrão de distribuição espacial. Todas as espécies apresentaram alta capacidade de armazenamento de água e comportamento fenológico contínuo e irregular com ausência de flores, frutos, queda foliar e brotamento nos meses mais frios e úmidos do ano. Apenas a floração de J....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fenologia; Floração; Frutificação; Jatropha.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042010000100014

Biologia reprodutiva de duas espécies de Jatropha L. (Euphorbiaceae) em caatinga, Nordeste do Brasil
Provedor de dados: 88
Autores: Santos,Mary Janice; Machado,Isabel Cristina; Lopes,Ariadna Valentina.
A polinização, o sistema reprodutivo e a fenologia de floração e de frutificação de Jatropha mutabilis (Pohl) Baill. e J. mollissima (Pohl) Baill. foram estudados no Estado de Pernambuco, nos Municípios de Buíque (8º67' S e 37º01' W) e Arcoverde (8º25' S e 37º02' W), ambos em Caatinga. Foram marcados 20 indivíduos de cada espécie para registro dos dados fenológicos, aspectos da biologia floral, sistema reprodutivo, bem como freqüência e comportamento dos visitantes florais. As duas espécies são monóicas, apresentam flores do tipo disco, com antese floral diurna, havendo variação em relação à longevidade das flores nos dois sexos, sendo as flores masculinas mais efêmeras (12 h), e as femininas mais duradouras (36 h). Ambos os tipos florais são nectaríferos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Fenologia reprodutiva; Jatropha; Monoicia; Polinização.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042005000200015

Fatty acid composition and properties of Jatropha seed oil and its methyl ester
Provedor de dados: 106
Autores: Chatakanonda, P.; Sriroth, K.; Vaysse, L.; Liangprayoon, S.; Chatakanonda, P; K. Sriroth; L. Vaysse; S. Liangprayoon.
Palavras-chave: Oil; Jatropha.
Ano: 2005
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4734

ผลของวิธีการอนุรักษ์ความชื้นดินต่อผลผลิตสบู่ดำ
Provedor de dados: 106
Autores: Chatchai Worrawetmongkol; Somchai Anusontpornperm; Anchalee Suddhiprakarn; Suphicha Thanachit.
Study on the effectmethod of soil moisture conservation method on yield of Jatropha, variety KUBP78-9 grown on Ultic Paleustalf, was carried out in order to compare the effect of no soil moisture conservation scheme (W1), plant residue mulch (W2), vetiver grass grown between Jatropha rows, slash and mulch (W3), and jack beanast cover crop (W4) on moisture changes within soil profile and yield of Jatropha. Drip irrigation at a rate of twolitres per plant was operated every two days during drought season (Dec 09-May 10). Results indicated that plant residue mulch tended to give the highest seed yield at 15% moisture content (200 kg rai-1) compared to the range of 130.9-145.3 kg rai-1 obtained from other treatments. Growing vetiver grass between rows of...
Tipo: Collection
Palavras-chave: Soil moisture; Jatropha; Mulching; Vetiver grass; Jack bean; สบู่ดำ; การคลุมดิน; หญ้าแฝก; ถั่วพร้า; ความชื้นดิน; ผลผลิต.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5179

Branching, flowering and fruiting of Jatropha curcas treated with ethephon or benzyladenine and gibberellins
Provedor de dados: 42
Autores: Costa,Anne P.; Vendrame,Wagner; Nietsche,Sílvia; Crane,Jonathan; Moore,Kimberly; Schaffer,Bruce.
Jatropha curcas L. has been identified for biofuel production but it presents limited commercial yields due to limited branching and a lack of yield uniformity. The objective of this study was to evaluate the effects of single application of ethephon or a combination of 6-benzyladenine (BA) with gibberellic acid isomers A4 and A7 (GA4+7) on branch induction, flowering and fruit production in jatropha plants with and without leaves. Plants with and without leaves showed differences for growth and reproductive variables. For all variables except inflorescence set, there were no significant statistical interactions between the presence of leaves and plant growth regulators concentration. The total number of flowers per inflorescence was reduced as ethephon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BA + GA4 + 7; Branching; Ethephon; Flowering; Fruiting; Jatropha.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300989