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Advances in passion fruit (Passiflora spp.) propagation Rev. Bras. Frutic.
Faleiro,Fábio Gelape; Junqueira,Nilton Tadeu Vilela; Junghans,Tatiana Góes; Jesus,Onildo Nunes de; Miranda,Diego; Otoni,Wagner Campos.
Abstract The propagation of many passion fruit species (Passiflora spp.) is done by seeds or sexual method, although asexual propagation, such stem cuttings, grafting or tissue culture is also possible and very useful in many cases. In this work, it was presented information on scientific and technological advances in sexual and asexual propagation of passion fruit, considering the different propagation methods and their applications. New demands for research and development activities are also related, given the wide range of passion fruit species and its potential for food, ornamental and medicinal use.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seed germination; Vegetative propagation; Cuttings; Grafting; Tissue culture.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000201002
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Abiotic alterations caused by forest fragmentation affect tree regeneration: a shade and drought tolerance gradient in the remnants of Coastal Maulino Forest RChHN
GUERRERO,PABLO C; BUSTAMANTE,RAMIRO O.
Plant regeneration is strongly determined by light and soil moisture differences between habitáis; both variables are modified by large-scale forest fragmentation. Several studies have indicated this alteration as the mechanism involved in tropical forest community change. The effects of fragmentation may be much more severe in Mediterranean and deciduous forests, because plant species in these forests show a stress tolerance tradeoff between shade and drought. Our study was performed in the deciduous fragmented Coastal Maulino Forest: Reserva Nacional Los Queules (RNLQ) and surrounding small fragments. We hypothesised that Aristotelia chilensis (shade intolerant but drought tolerant) should increase its regeneration in small patches as a consequence of...
Tipo: Journal article Palavras-chave: Ecological restoration; Forest fragmentation; Safe sites; Seed germination; Seedling establishment.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2009000300008
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'Aroeira-branca' [Lithraea molleoides (Vell.) Engl. - Anacardiaceae] seed quality evaluation by the X-ray test Scientia Agricola
Machado,Cibele Ferreira; Cícero,Sílvio Moure.
'Aroeira-branca', an arboreal species of great ecological and economic importance, is seed propagated and presents limitations with respect to the availability of methods for seed quality evaluation. The X-ray test has been considered of potential value because it is accurate, quick and nondestructive. In this context, the objective of this work was to verify the possibility of this test to detect damage and/or abnormalities in aroeira-branca embryos, in an attempt to correlate these anomalies to germination. Four seed lots were collected in different locations in the southern region of the State of Minas Gerais, Brazil, during 2001. The X-ray test consisted of submitting 100 seeds/lot to radiation (exposure of seeds to radiation of 13 kV/5 minutes) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Radiography; Embryo morphology; Seed germination; Forest species.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200026
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Plant bioassays to assess toxicity of textile sludge compost Scientia Agricola
Araújo,Ademir Sérgio Ferreira; Monteiro,Regina Teresa Rosim.
Composting of industrial wastes is increasing because of recycling requirements set on organic wastes. The evaluation of toxicity of these wastes by biological testing is therefore extremely important for screening the suitability of waste for land application. The toxicity of a textile sludge compost was investigated using seed germination and plant growth bioassays using soybean and wheat. Compost samples were mixed with water (seed germination bioassay) or nutrient solution (plant growth bioassay) at concentrations of 0, 19, 38, 76 and 152 g L-1. No negative effects were observed after five days of compost water-extract in relation to soybean and wheat seed germination. After fifteen days, under a hydroponics system, plant growth had harmful effects of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytotoxicity; Seed germination; Solid residue; Hydroponics.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000300013
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Progress report on applied experiments Thai Agricultural
Sakamoto, Haruhiko; Somrak Noradechanon.
7 ill., 9 tables
Palavras-chave: Corn; Maize; Sorghum; Intensive irrigation; Seed storage; Seed germination; Fertilizers; Plant population; Varieties; Crop rotation; Reddish brown lateritic; Yields; Agronomic characters; ข้าวโพด; ข้าวฟ่าง; การให้น้ำ; การทดสอบผลผลิต; การผลิต.
Ano: 1982 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4112
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ผลของวัสดุที่ใช้ทำ Stratification 3 ชนิด ต่อการงอกของเมล็ดสาลี่พันธุ์ Nyao Li Thai Agricultural
Napaporn Suksanguan.
Special Problem (B.S. in Agriculture)
Tipo: PhysicalObject Palavras-chave: Nyao Li; Seed germination; Strati; สาลี่; เมล็ด; วัสดุเพาะ; การงอก; การเจริญเติบโต.
Ano: 2004 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5519
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In vitro germination and growth of Vriesea incurvata Gaudich. (Bromeliaceae) Acta Agron. (Palmira)
Pulido-Rueda,Edwin Ernesto; Milaneze-Gutierre,Maria Auxiliadora; Negrelle,Raquel.
Abstract Vriesea incurvata in the natural environment shows some difficulties associated to the low seed germination capacity. Aiming to provide basis for the seedlings production, the results of the seeds germination percentage and the initial growth of V. incurvata seedlings in vitro conditions in different culture media, are reported. Completely randomized design was comprised of eight treatments and eight replications. The treatments were as culture media: MS (Murashige & Skoog); MS%; KC (Knudson); KC%; MS + activated carbon (AC); MSV2 + AC; KC + AC; and KCV2 + AC. The germination percentage was calculated from the division between the number of seeds with primary root extrusion by the total number of sowed seeds. The initial growth was evaluated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bromeliaceae; Culture media; In vitro propagation; Native plant; Seed germination.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100140
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Development of artificial sugarcane seed CP-54 from three cultivars (cv MEX 69-290; cv MEX 68-P-23; cv. CP 72-2086) using polymers in Tabasco, Mexico Acta Agron. (Palmira)
Álvarez-Sánchez,Geiner F; Arias-de la Cruz,Heidi L; Salgado-García,Sergio; Córdova-Sánchez,Samuel; Ortiz-Laurel,Hipólito; Castelán-Estrada,Mepivoseth; García-de la Cruz,Rubén; Castañeda-Ceja,Raúl.
Abstract Precision mechanized sowing of sugarcane has been delayed due to germination failures caused in sowing process by pieces of sugarcane, generating economic losses by reducing production. The aim of this study was to evaluate different polymers and cultivars of sugarcane to elaborate artificial seed CP-54, seed germination and quality of sugarcane plants. An experiment was carried out in two stages in experimental field of the Colegio de Postgraduados Campus Tabasco, Mexico. Results indicate that the best physical stage of artificial seed CP-54 was obtained in Mex 69-290, Mex 68-P-23 and CP 72-2086 cultivars encapsulated with starch polymers and sodium alginate. Artificial seed CP-54 germination was 100 and 84% encapsulated with starch and alginate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Precision agriculture; Saccharum spp.; Seed germination; Buds; Sugarcane response.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100094
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SEED GERMINATION AND PLANT DEVELOPMENT IN Escobedia grandiflora (OROBANCHACEAE): EVIDENCE OF OBLIGATE HEMIPARASITISM? Acta biol.Colomb.
CARDONA-MEDINA,Edison; MURIEL RUIZ,Sandra B.
Root parasitic plants can be facultative or obligate. Facultative parasites are able to complete their life cycle and their seeds can germinate without a host. Escobedia grandiflora is a poorly studied species in spite of its ancestral importance as dye of foods and medicinal use. The present study evaluates the states of seed, seedlings and mature plants, under presence and absence of possible hosts, for inferring the type of parasitism exhibited by E. grandiflora. Seeds were evaluated using two conditions each of light (12 and 0 hours) and temperature (20 °C and 25 °C); percentage germination, and germination speed were determined. The seeds did not require a host to germinate, as is typical of facultative parasitic plants. Percentage of germination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Escobedia; Obligate hemiparasite; Parasitic plant; Root parasitism; Seed germination.
Ano: 2015 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000300011
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Effects of salinity on seed germination, seedling growth and survival of Spartina ciliata Brong Acta Botanica
Cordazzo,César Vieira.
The effects of different salinities on the germination of Spartina ciliata seeds were tested during 40 days in the laboratory, using six concentrations of NaCl (0,45, 80, 130, 170 and 215 mM) besides three concentrations of seawater (25,30 and 35‰). In addition, the survival and growth of seedlings were tested in five constant salinity regimes (0,45, 80 and 170 mM NaCl) as well as in five regimes of simulating seawater overwash. The results showed that seeds possed a high germination capacity over a wide range of salinities (0 to 215 mM NaCl). Although concentrations close to full-strength seawater completely inhibited seed germination, the transfer of the ungerminated seeds to freshwater immediately stimulated this. The effects of salinity on seedling...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salinity stress; Seed germination; Seedling growth; Coastal dune plant; Spartina ciliata.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061999000300012
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Key factors affecting seed germination of Copaifera langsdorffii, a Neotropical tree Acta Botanica
Souza,Matheus Lopes; Silva,Dávila Regina Pacheco; Fantecelle,Laura Bubantz; Lemos Filho,José Pires de.
In natural conditions biotic and abiotic factors interact, synergistically affecting seed germination. In this study, we experimentally simulated natural conditions that occur during seed dispersal that can affect the germination of Copaifera langsdorffii. Specifically we evaluated the effect of aril removal by different dispersal agents (birds and ants) and fire on germination. The seeds were submitted to the following treatments: Control (seeds placed to germinate with aril intact); Acid (simulation of passage through the digestive tract of a bird); Aril removal (simulation of aril removed by ants); Fire (seeds exposed to fire). Germination percentage and time varied among treatments (X²=89.735, P<0.001; X²=16.225, P<0.001, respectively). None of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Copaifera langsdorffii; Fire; Plant-disperser interaction; Seed germination.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400473
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Non-overlap of hosts used by three congeneric and sympatric loranthaceous mistletoe species in an Amazonian savanna: host generalization to extreme specialization Acta Botanica
Fadini,Rodrigo Ferreira.
Two main hypotheses predominate in the literature on mistletoe-host specificity: (1) mistletoes are only likely to specialize on plant species on which they are frequently deposited; and (2) compatibility between mistletoes and plant species is a prerequisite for mistletoe-host parasitism. I explored these hypotheses by studying the seed deposition patterns and mistletoe-host compatibility in populations of three congeneric and sympatric mistletoe species of the genus Psittacanthus (P. biternatus, P. eucalyptifolius and P. plagiophyllus - Loranthaceae). I recorded the presence or absence of these mistletoe species in 15 tree species in a savanna patch in Amazonia. Among the five tree species that I found to be potential hosts (at least one tree individual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Host specifi city; Loranthaceae; Psittacanthus; Resource-fragmentation hypothesis; Seed germination; Seedling establishment.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000200010
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Fungi associated with Copaifera oblongifolia (Fabaceae) seeds: occurrence and possible effects on seed germination Acta Botanica
Fernandes,Elio Gomes; Valério,Henrique Maia; Duarte,Karen Luiza Rodrigues; Capuchinho,Lauany Matos de Novais; Fagundes,Marcílio.
ABSTRACT Copaifera oblongifolia is a recurrent plant species in degraded areas yet there is little information about its seed biology and interactions with fungi. The aims of this study were to identify the fungal community (endophytic and non-endophytic) associated with C. oblongifolia seeds and to test the effects of these different fungal species on germination. In general, germination of C. oblongifolia seeds was high (about 85 %), initiating four days after sowing and continuing for a total of 20 days. External asepsis with sodium hypochlorite did not influence germinability of C. oblongifolia. Seed infestation with Aspergillus niger, A. flavus, Mucor sp. and Rhizopus stolonifer did not affect the time required for germination, however, infection with...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Endophytic classification; Endophytic fungi; Saprophytic fungi; Seed germination; Seed-fungus interactions.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100179
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Maternal habitat affects germination requirements of Anabasis setifera, a succulent shrub of the Arabian deserts Acta Botanica
El-Keblawy,Ali; Gairola,Sanjay; Bhatt,Arvind.
The effects of maternal habitat on light and temperature requirements during germination were assessed for the succulent desert shrub Anabasis setifera. Seeds were collected from the Mediterranean habitats of Egypt and the hyper-arid subtropical habitats of the United Arab Emirates (UAE). Seeds from the two populations were germinated in three temperature treatments in both a light/dark regime and continuous darkness. Seeds from the Egyptian population germinated significantly greater and faster than those of UAE. Seeds stored for four months at room temperatures have little dormancy and germinate at wide range of temperatures and light conditions, but seeds stored four months in the natural habitat lost their ability to germinate and rotted 10 days after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anabasis setifera; Desert; Halophyte; Maternal habitat; Seed germination.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100035
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Do fruit morphology and scarification affect germination and predation rates of Babassu seeds? Acta Botanica
Ferreira,Paulo Henrique Gonçalves; Nunes,Yule Roberta Ferreira; Faria,Maurício Lopes; Brandão,Murilo Malveira; Costa,Cibele Stramare Ribeiro; Valério,Henrique Maia; Melo,Geraldo Aclécio; Pimenta,Marcio Antonio Silva.
ABSTRACT Seed predation is a natural phenomenon that can occur either before or after dispersal and can significantly reduce the economic value and reproductive potential of plants. The babassu palm (Attalea vitrivir, Arecaceae) is important to rural communities that extract oil from its fruits for a wide variety of uses. We evaluated the predation and germination of A. vitrivirseeds in Pandeiros River Environmental Protection Area (EPA-Pandeiros) in Minas Gerais State, Brazil. Sixty individual plants were evaluated to determine their fruiting patterns. Seed predation and germination were evaluated in the natural environment for eight months for fruits divided into two treatments: scarified and intact. Germination of fruits submitted to these same...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arecaceae; Attalea vitrivir; Babassu palm; Fruit; Seed germination; Seed predation.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400658
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The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds Acta Botanica
Gonçalves,Maura Lúcia Costa; Takaki,Massanori.
The role of the seed coat in the light sensitivity of seeds of Raphanus sativus L. cv. redondo gigante was analysed by germination tests of intact and naked seeds. Far-red light caused high inhibition of seed germination, while under white and red lights low inhibition was found. Naked seeds presented no light sensitivity with high percentage germination under light and darkness. However, incubation of naked seeds in -0.6MPa polyethylene glycol solution resulted in light inhibition as observed in intact seeds. The analysis of the seed coat transmitted light indicated that the filtered light presented the same photoequilibrium of phytochrome when compared to the white light, with a decrease of only 33% in the light irradiance which reaches the embryo.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seed germination; Raphanus sativus; Seed coat; Phytochrome.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061997000100006
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Light and temperature requirements for germination of seeds of Aechmea nudicaulis (l.) Griesebach and Streptocalyx floribundus (Martius ex Shultes f.) Mez (Bromeliaceae) Acta Botanica
Pinheiro,Fernanda; Borghetti,Fabian.
Seeds of A. nudicaulis and S. floribundus were collected in a restinga located at Presidente Kennedy (ES, Brazil). This sandy community is characterized by the presence of patches of vegetation interspersed by open areas with a sparse plant covering. In order to evaluate the capacity of A. nudicaulis and S. floribundus to recruit individuals from seeds in the distinct microclimates generated by this heterogeneous plant covering, experiments were conducted in laboratory to test the effects of light and temperature on the germination for both species. Seeds of A. nudicaulis were unable to germinate in darkness but they achieved high germinability (≥90%) from 15 to 40°C under red light. Seeds of S. floribundus germinated in darkness only at 40ºC (22.5%),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aechmea nudicaulis; Streptocalyx floribundus; Restinga; Seed germination; Temperature.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062003000100003
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Efeito do período de envelhecimento acelerado no teste de condutividade elétrica e na qualidade fisiológica de sementes de feijão Agronomy
Binotti, Flávio Ferreira da Silva; UNESP; Haga, Kuniko Iwamoto; UNESP; Cardoso, Eliana Duarte; UNESP; Alves, Charline Zaratin; UNESP; Sá, Marco Eustáquio de; UNESP; Arf, Orivaldo; UNESP.
A qualidade das sementes colocadas à disposição do produtor é de grande importância para obtenção de altas produtividades. O objetivo do trabalho foi avaliar os efeitos causados por diferentes períodos de envelhecimento artificial na lixiviação de açúcares, proteínas, aminoácidos e íons no exsudato do teste de condutividade elétrica, e suas relações com a germinação e vigor de sementes de feijão da cultivar Pérola. O trabalho foi conduzido no Laboratório da FE de análises de sementes - Unesp Campus de Ilha Solteira. O delineamento experimental foi o inteiramente casualizados, sendo que as sementes foram submetidas a oito períodos de envelhecimento acelerado (zero, 24, 48, 72, 96, 120, 144 e 168 horas). A germinação e vigor de sementes de feijão cultivar...
Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Phaseolus vulgaris L.; Lixiviados; Proteínas; Íons; Germinação; Vigor 5.01.03.05-9 Melhoramento Vegetal Phaseolus vulgaris L.; Leakage; Protein; Ions; Seed germination; Vigor.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1736
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Influences of presowing treatments on the germination and emergence of fig seeds (Ficus carica L.) - doi: 10.4025/actasciagron.v34i3.13392 Agronomy
Çalişkan, Oguzhan; Faculty of Agriculture, University of Mustafa Kemal; Mavi, Kazim; Faculty of Agriculture, University of Mustafa Kemal; Polat, Aytekin; Faculty of Agriculture, University of Mustafa Kemal.
Seed germination of fig seeds is important for obtain seedlings with high variability in breeding studies, and for producing mosaic virus-free seedlings. This experiment was carried out to evaluated the effects of several treatments (priming with water for 24h, GA3 at 500 and 1000 ppm for 24h, 3% KNO3 for 24h, and stratification at 4°C for 7, 14 and 21 days) on seed germination and emergence of ‘Bursa Siyahı’ and ‘Sarılop’ fig cultivars. The application of GA3 increased the germination and emergence of these fig seeds. The highest percentages of germination and emergence were obtained with GA3 at 500 or 1000 ppm for both cultivars. The seed germination and emergence of the cultivar ‘Bursa Siyahı’ were higher than observed with the ‘Sarılop’. The...
Tipo: Laboratory analysis Palavras-chave: Ficus carica L.; Fig; Seed germination; Seedling emergence; Seed treatments seed germination and emergence Horticulture Ficus carica L.; Fig; Seed; Germination; Seedling emergence; Seed treatments seed germination and emergence.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13392
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Does polymer-based encapsulation enhance performance of plant growth promoting microorganisms? A meta-analysis view Agrociencia
Pacheco-Aguirre,J. Alberto; Ruíz-Sánchez,Esau; Ballina-Gómez,H. Salomón; Alvarado-López,C. Juan.
Abstract Various studies have been undertaken to evaluate the effect of polymer-based encapsulation on performance of plant growth promoting microorganism. However there is no systematic analysis about the performance of these microorganisms when encapsulated in a polymer-based matrix. Relevant published papers were retrieved by conducting searches in Google Scholar, Only Library, Science Direct, Springer Journal, Taylor & Francis and Wiley Online Library. An examination of 117 articles was carried out and of those only 11 satisfied our criteria for inclusion into the meta-analysis. From these articles, we selected 41 cases to be evaluated. We used as keywords “microcapsules”, “capsules”, “microorganisms”, “growth”, “promoting”, “germination”...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus sp.; Inoculant; Microcapsules; Plant growth; Seed germination.
Ano: 2017 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000200173
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