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Registros recuperados: 34
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Arranjo espacial e adubação nitrogenada em cobertura na cultura do milho - DOI: 10.4025/actasciagron.v31i3.788 Agronomy
Lana, Maria do Carmo; UNIOESTE; Woytichoski Junior, Pedro Paulo; COPACOL; Braccini, Alessandro de Lucca; UEM; Scapim, Carlos Alberto; UEM; Avila, Marizangela Rizzatti; UEM; Albrecht, Leandro Paiola; UEM.
O objetivo deste trabalho foi avaliar a eficiência da redução do espaçamento entre linhas e do uso de diferentes doses de nitrogênio em cobertura, utilizando como fonte a ureia. Para tal, avaliou-se a produtividade, componentes da produção e outras características agronômicas da cultura do milho. O experimento foi instalado na Estação Experimental da Cooperativa Agrícola Consolata (Coopacol) no município de Cafelândia, Paraná, em área de Latossolo Vermelho eutroférrico, conduzido em sistema de semeadura direta. O delineamento experimental utilizado foi em blocos casualizados, com quatro repetições, dispostos em parcelas subdivididas. Os espaçamentos entre linhas (0,45; 0,75 e 0,90 m) foram testados nas parcelas e as doses de nitrogênio em cobertura (0; 30;...
Palavras-chave: 5.01.00.00-9 Agronomia Zea mays L.; Híbrido; Espaçamento; Ureia Zea mays L.; Hybrid; Spacing urea.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/788
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Assessment of stability of expression of various male-sterile genes in muskmelon in sub-tropical field conditions National Institute of Agronomic Research
Dhillon, N.P.S.; Kumar, J..
Five melon (Cucumis melo L.) progenies segregating for five male-sterile genes (ms-1, ms-2, ms-3, ms-4, and ms-5) along with two male-fertile cultivars were evaluated for phenotypic variation in expression of fertility in sub-tropical field conditions, for two years. Male-fertile plants of three progenies of ms-1, ms-2, and ms-3 were phenotypically unstable and produced more male-sterile flowers than plants of normal male-fertile cultivars. Progenies of ms-4 and ms-5 were stable for the expression of male-fertile plants.
Tipo: Poster Palavras-chave: Cucumis melo; Phenotype; Stability; Hybrid; Male-sterility.
Ano: 2008 URL: http://hdl.handle.net/2174/260
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Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities Ciência e Agrotecnologia
Labarrère,Carla Rosa; Faria,Paulo Mário Carvalho de; Teixeira,Edgar de Alencar; Melo,Marília Martins.
Massive production, such as fish growing in water recirculation system, imposes challenges to animals capable of altering their homeostatic balance, and is able to affect their physiological performance. Therefore, the levels of ions and serum enzymes can be used as indicators of fish health. This study aimed to analyze the blood biochemistry profile of hybrid surubim (P. reticulatum X P. corruscans) submitted to different stocking densities in water recirculation system, in two distinct stages of production, from 150 to 400 g (first trial), and 400 to 1000 g (second trial). In the first trial, the five stocking rates were: 27.5, 47.5, 67.5, 87.5 and 107.5 fish/m³ of water. To obtain these densities, it was used 11, 19, 27, 35 and 43 fish per tank,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Hybrid; Plasma biochemistry.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300008
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Bruguiera × dungarra, a new hybrid between mangrove species B. exaristata and B. gymnorhiza (Rhizophoraceae) recently discovered in north-east Australia Naturalis
Duke, N.C.; Kudo, H..
Bruguiera × dungarra (Rhizophoraceae), a previously undescribed hybrid species between B. exaristata and B. gymnorhiza is recorded from north-eastAustralia. Eight taxa are currently recognised in this Indo West Pacific genus, including three putative hybrids. The newly described hybrid is widely occurring, and it is described here with notes provided on typification, phenology, distribution and habitat. A revised identification key to all Bruguiera taxa is presented, along with a table of comparative diagnostic characters.
Tipo: Article / Letter to the editor Palavras-chave: Bruguiera × dungarra; Hybrid; Identification key; Intermediate; Mangrove; Rhizophoraceae; Taxonomy.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/671931
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Bruguiera (Rhizophoraceae) in the Indo-West Pacific: a morphometric assessment of hybridization within single-flowered taxa Naturalis
Duke, N.C.; Ge, X.-J..
The first putative hybrid tree species of the genus Bruguiera (Rhizophoraceae), B. × rhynchopetala, is reported from mangrove forests of China and Australia. It was described from China previously as a variety of B. sexangula. The hybrid is acknowledged as B. gymnorhiza × B. sexangula with parent species restricted to different parts of the Indo-West Pacific. The hybrid is recognised at north-eastern and south-eastern parts of the overlap area between parent distributions, but it appears absent in western parts. Further local assessments are needed across the range. Hybrid status is supported by: 1) intermediate and shared morphological characters; 2) distribution limited to areas of co-occurrence of B. gymnorhiza and B. sexangula; and 3) molecular...
Tipo: Article / Letter to the editor Palavras-chave: Bruguiera × rhynchopetala; Hybrid; Indo-West Pacific; Mangrove; Morphometric; Rhizophoraceae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/524643
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Coincidence of flowering time and the productivity and quality of cauliflower hybrid seeds Scientia Agricola
Verdial,Marcelo Fontanetti; Cardoso,Antonio Ismael Inácio; Lima,Márcio Santos de; Chaves,Francisco Célio Maia.
The missing of flowering synchronization between the self-incompatible lines in a crop field of cauliflower hybrid seeds besides making the seed production smaller can compromise the genetic purity of them. The coincidence of the flowering time between two cauliflower lines was examined to study its effect on the productivity and quality of hybrid seeds. The treatments consisted of six different sowing dates, every fifteen days, using a self-incompatible tropical line pollinated by a winter line which does not present self-incompatibility. The following characteristics were evaluated: leaf average area and number of flowers per plant, number of siliques per plant, number and weight of seeds per plant, weight of thousand seeds and average number of seeds...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica oleracea; Seed; Hybrid; Self-incompatibility.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000300015
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Competição de dez híbridos e uma cultivar de aspargo no Vale do Submédio São Francisco. Infoteca-e
D'OLIVEIRA, L. O. B.; OLIVEIRA, J. J..
Estudo do comportamento de híbridos de aspargos com a finalidade de identificar o material agronomicamente superior, cujas caracteristicas incluam elevado potencial produtivo e maior adaptação as condições edafoclimáticas da região.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Nordeste; Submedio Sao Francisco; Hybrid; Variety; Northeast; San Francisco Sub-Middle Valley; Cultivo; Asparagus.; Aspargo; Asparagus Officinalis; Hibrido; Variedade..
Ano: 1984 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131865
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Competição de dez híbridos e uma população de aspargo no Vale do Submédio São Francisco - 1o. e 2o. ano de colheita. Infoteca-e
D'OLIVEIRA, L. O. B.; OLIVEIRA, J. J..
Estudo do comportamento de dez híbridos de aspargo da França, e uma população de planta local, para identificar material agronomicamente superior, cujas caracteristicas indiquem elevado potencial produtivo e maior adaptação as condições edafoclimáticas da região.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Competição; Cultura alternativa; Nordeste; Submédio São Francisco; Hybrid; Variety; Northeast; San Francisco Sub-Middle Valley; Asparagus.; Aspargo; Asparagus Officinalis; Hibrido; Irrigação; População; Variedade.; Irrigation; Population..
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131864
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Crop management systems and maize grain yield under narrow row spacing Scientia Agricola
Strieder,Mércio Luiz; Silva,Paulo Regis Ferreira da; Rambo,Lisandro; Sangoi,Luís; Silva,Adriano Alves da; Endrigo,Paulo César; Jandrey,Douglas Batista.
Reduction in row spacing provides a more uniform distribution among plants that can increase grain yield. The benefits of narrow row spacing can depend on the plant architecture and on the kind of crop management system. The objective of this study was to assess the effects of narrow row spacing on the grain yield of maize hybrids growing under different management systems. Six experiments were carried out in Eldorado do Sul, State of Rio Grande do Sul, Brazil, during the 2003/04 and 2004/05 growing seasons. Each experiment corresponded to a crop management system. Treatments consisted of two row spacings (0.8 and 0.4 m), two hybrids (Penta and Flash) and two plant densities, which varied with the crop management system and growing season. Besides plant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Plant arrangement; Hybrid; Yield components; Fertility and irrigation levels.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400004
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Cucurbit research in India: a retrospect National Institute of Agronomic Research
Rai, M.; Pandey, S.; Kumar, S..
Cucurbits belong to family Cucurbitaceae, includes about 118 genera and 825 species. In India, a number of major and minor cucurbits are cultivated, which share about 5.6 % of the total vegetable production. They are consumed in various forms i.e., salad (cucumber, gherkins, long melon), sweet (ash gourd, pointed gourd), pickles (gherkins), and deserts (melons). In India, several research institutes and universities have utilized a number of cultivated and wild species to develop improved varieties and parental lines. About 112 open pollinated varieties of several cucurbits have been recommended for cultivation at national and state levels. Among these, 48 improved varieties in 8 major cucurbits have been identified and recommended through All India...
Tipo: Poster Palavras-chave: Cucurbitaceae; Cucurbitaceous vegetables; Germplasm; Hybrid; Production; Genetic resources; Biotic resistance.
Ano: 2008 URL: http://hdl.handle.net/2174/223
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Current Antimalarial Therapies and Advances in the Development of Semi-Synthetic Artemisinin Derivatives Anais da ABC (AABC)
PINHEIRO,LUIZ C.S.; FEITOSA,LÍVIA M.; SILVEIRA,FLÁVIA F. DA; BOECHAT,NUBIA.
ABSTRACT According to the World Health Organization, malaria remains one of the biggest public health problems in the world. The development of resistance is a current concern, mainly because the number of safe drugs for this disease is limited. Artemisinin-based combination therapy is recommended by the World Health Organization to prevent or delay the onset of resistance. Thus, the need to obtain new drugs makes artemisinin the most widely used scaffold to obtain synthetic compounds. This review describes the drugs based on artemisinin and its derivatives, including hybrid derivatives and dimers, trimers and tetramers that contain an endoperoxide bridge. This class of compounds is of extreme importance for the discovery of new drugs to treat malaria.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malaria; Plasmodium falciparum; Artemisinin; Hybrid.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000301251
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Cuticle and cuticular wax development in the sunflower (Helianthus annuus L.) pericarp grown at the field under a moderate water deficit Phyton
Franchini1,MC; Hernández,LF; Lindström,LI.
Wax in the sunflower (Helianthus annuus L.) pericarp is an important morphological feature that interferes with oil quality and varies with crop management and environmental conditions. We studied the effect of a moderate water deficit (MWD) generated from early to late anthesis on quantitative development of the cuticle, and qualitative and quantitative development of the cuticular waxes (CW) of the pericarp in two hybrids grown under field conditions. The experiment was repeated during two consecutive seasons (Exp-I and Exp-II). At harvest maturity (HM), plants grown under a MWD showed higher CW content (31 to 47%) and thicker cuticles (13%) in both experiments compared to controls. Epicuticular wax (ECW) crystals showed a granular morphology. Also a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cuticular waxes; Oil quality; Crop management; Hull; Anthesis; Harvest Maturity; Hybrid; Helianthus annuus L..
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572010000200007
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Cytogenetic analyses in Paspalum L. reveal new diploid species and accessions Ciência Rural
Pozzobon,Marisa Toniolo; Machado,Ana Caroline de Carvalho; Vaio,Magdalena; Valls,José Francisco Montenegro; Peñaloza,Andréa del Pilar de Souza; Santos,Sileuza dos; Côrtes,Ana Luiza; Rua,Gabriel Hugo.
Chromosome numbers were counted in 126 new accessions of 50 Paspalum species from Brazil, Argentina, Paraguay and Bolivia. The chromosome numbers 2n=12, 20, 24, 30, 40, 50, 60, 80 were confirmed. Chromosome numbers for P. arenarium (2n=20), P. barretoi (2n=20), P. aff. ceresia (2n=40), P. corcovadense (2n=20), P. crispulum (2n=20), P. flaccidum (2n=40), P. nummularium (2n=20), P. scalare (2n=20), P. vescum (2n=20) and P. rectum (2n=20) and a diploid cytotype of P. malacophyllum are reported for the first time. The predominance of tetraploid accessions (43.6%) was confirmed, but an unusually high number of diploid species (44%) and accessions (35.7%) was found. These results open new perspectives for breeding programs, phylogenetic studies, and for research...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome; Diploid; Polyploid; Ploidy level; Hybrid; Genetic resources.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000500014
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'DURADORO': tomate longa vida. Infoteca-e
bitstream/item/195041/1/digitalizar0182.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Híbrido Duradoro; Tipo Longa Vida; Brasília; Distrito Federal; Brasil; Hybrid; Cerrado; Lycopersicon Esculentum; Tomate; Brazil; Tomatoes.
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/770977
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Evaluation of Crop Setting Systems for Four Summer Squash Varieties Cucurbita maxima (Carr.) Millán var. zapallito Agricultura Técnica
De Grazia,Javier; Tittonell,Pablo Adrián; Salvador Perniola,Omar; Caruso,Ariel; Chiesa,Angel.
The advantages of transplanting with respect to direct sowing has been widely reported in several vegetable species, but there are few studies in Cucurbits, and even fewer in summer squash (Cucurbita maxima (Carr.) Millán var. zapallito). Morphological and physiological characteristics of hybrid varieties determine earliness of between 5 to 10 days compared to traditional cultivars. The aim of the study was to compare the summer squash setting systems, direct sowing and nursery seedlings, and to determine their effect on yield and earliness in different genotypes. The hybrid varieties F1 Angelo and Espejo, and the standard varieties Any and Any Plus were used combined with two setting systems (direct sowing and nursery seedlings). Male and female flowering...
Tipo: Journal article Palavras-chave: Transplant; Direct sowing; Hybrid; Variety; Yield.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200002
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Femur Properties of Embryo in the Layer Hybrid and Pure Breeds Rev. Bras. Ciênc. Avic.
Onbaşılar,EE; Güngör,ÖF; Demir,T; Erbay,FK Elibol; Kahraman,M; Taban,S; Çalık,A; Pirpanahi,M.
ABSTRACT Layer hybrids are more superior in the egg yield than pure breeds. But this superiority causes some problems in the bones during the production period. There are a lot of differences among genotypes in the production period that have been examined extensively, however, the differences throughout incubation period aren’t known yet. Thus, the objective of this study was to evaluate the differences in femur properties of pure breed and layer hybrid embryos during the incubation period. A total of 354 fresh hatching eggs were used from one hybrid (Lohman White) and two pure breeds (Denizli & Gerze). The eggs were incubated. Hatching eggs from each genotype at the beginning of embryonic days (E) 19 and E21 were examined. At these embryonic ages, 12...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Layer; Pure breed; Hybrid; Embryo; Femur.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400805
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Grassland utilization in Himalayas OAK
本江, 昭夫; HONGO, Akio.
In the Himalayas, domesticated yak is fed at an altitudinal range of 3,000 to 5,000m. Below this zone, the cow is more common. Hybrids are fed at an intermediate zone. In order to analyze the genetic basis of milk protein variation, milk samples were taken from the nak (female yak), cow and their hybrid. By principle component analysis, yak and a highland type of cow (kirmcome) were clearly distinguished from midland (shakzam) and lowland (palang) cows. Local Sherpa people may produce suitable animals for each zone by controlling animal reproduction systems. Generally speaking, a sustainable stocking rate is two adult animals per hectare in the central Himalayas. However, most pastures were overgrazed 3 to 10 times more than this level. The feedstuff...
Palavras-chave: Cow; Fodder tree; Hybrid; Stocking rate; Yak; ウシ; 飼料木; 雑種; 放牧圧; ヤク.
Ano: 1996 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3006
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Introdução e avaliação de híbridos de bananeira. Infoteca-e
GONZAGA NETO, L.; SOARES FILHO, W. das S.; CORDEIRO, Z. J. M..
Avaliação de cinco híbridos tetraploides da bananeira criados pelos CNPMF observando os seguintes descritores: número de folhas por planta, numero de pencas, peso médio e comprimento do engaco.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Avaliacao; Nanica; Nanicao; Pacovan; Hybrid; Variety.; Banana; Irrigação; Hibrido.; Irrigation.
Ano: 1995 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132156
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Jabras: híbrido nacional de abóbora Tetsukabuto. Infoteca-e
EMBRAPA. Centro Nacional de Pesquisa de Hortaliças..
Origem; Características; Produtividade; Recomendações técnicas; Frutificação sexuada; Frutificação assexuada.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Híbrido Tetsukabuto; Cultivar Jabras; Brasília; Distrito Federal; Brasil; Pumpkin; Hybrid; Productivity; Abóbora; Cucúrbita Máxima; Cucúrbita Moschata; Cerrado; Produtividade; Brazil; Seeds.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/772359
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Obtaining hybrids of cultivars and wild subspecies of cassava PAB
Silva,Dreid de Cerqueira Silveira da; Martins,Márcio Lacerda Lopes; Santos,Ariana Silva; Santos,Vanderlei da Silva; Alves,Alfredo Augusto Cunha; Ledo,Carlos Alberto da Silva.
Abstract: The objective of this work was to evaluate the crossability between cassava (Manihot esculenta subsp. esculenta) cultivars and the subspecies M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana. Plants from the BRS Jari, BRS Formosa, BRS Verdinha, and BGM 2050 (Equador 72) cultivars were crossed with the two subspecies. During flowering, at pre-anthesis, pistillate flowers were covered with a nylon bag and staminate flowers on the same inflorescence were emasculated. The staminate flowers were collected and placed in flasks previously labeled and sterilized with alcohol; some fresh flowers were stored at room temperature due to asynchronous flowering. The crosses were made between 10 a.m. and 2 p.m. After pollination, the flowers...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Controlled pollination; Hybrid; Plant breeding; Wild relative species.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000200182
Registros recuperados: 34
Primeira ... 12 ... Última
 

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