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Registros recuperados: 67
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A modeling approach to optimize nitrogen dose for drum-seeded wet rice International Rice Research Institute
Subramanian, E.; Martin, G. J.; Kailasam, C..
p.41-42
Palavras-chave: Nitrogen fertilizers; Application rates; Crop yield; Yield components; Models; India.
Ano: 2005 URL: http://hdl.handle.net/123456789/1118
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A widely commercialized two-liner super hybrid rice, Liangyoupeijiu International Rice Research Institute
Lu, C. G.; Zhou, J. S..
p. 20
Palavras-chave: Hybrid rice; Liangyoupeijiu; Two line system; Growth; Yield components; Grain; Quality; China.
Ano: 2003 URL: http://hdl.handle.net/123456789/1315
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Agronomic performance of 'BRS' Itaim cowpea beans at different planting densities under no-tillage and conventional systems Rev. Ciênc. Agron.
Cardoso,Milton José; Bastos,Edson Alves; Athayde Sobrinho,Cândido; Melo,Francisco de Brito.
ABSTRACT Cowpea beans play an important role in Brazilian farming, mainly in northern and northeastern regions, where it is widely grown among smallholder farmers. In recent years, commercial farmers have expanded its cultivation, mostly to the Midwest. This study aimed at evaluating the planting density of 'BRS Itaim' black-eyed cowpea beans under conventional (CT) and no-tillage (NT), with 75% mulch in the first year. Two experiments (CT and NT) were conducted at Embrapa Meio-Norte in Teresina - PI (Brazil), during the 2014/2015 harvest. Both experiments were carried out in a randomized block design with four replicates, considering the planting densities (PD) 12, 16, 20, 24, and 28 plants m-2. In both systems, grain yields (GY) and the number of pods...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yield components; Yield grain; Vigna unguiculata (L.) Walp.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500856
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Basal N fertilization increases productivity of rainfed upland rice International Rice Research Institute
Singh, R. K.; Singh, C. V..
p.33-34
Palavras-chave: Basal dressings; Crop yield; Leaf area; Leaves; Nitrogen fertilizers; Plant height; Roots; Split dressings; Tillers; Upland rice; Yield components.
Ano: 2005 URL: http://hdl.handle.net/123456789/1167
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BIOLOGICAL RESPONSEVINESS OF BEANS UNDER DIFFERENT SOIL WATER REGIMES AT PROTECTED ENVIRONMENT CONDITIONS IN SOUTHERN BRAZIL CIGR Journal
Domingues, Rafael; Pereira, André Belmont; Schiebelbein, Luis Miguel; Rosa, Jadir Aparecido; Barbosa, Eduardo Augusto Agnellos; Pires, Luiz Fernando.
Climatic conditions and soil water requirement notably impinge upon agriculture in such a way as to galvanize scientists to come up with advanced research in order to assure a more sustainable production at a given site. Under protected environmental conditions water is the main factor to be controlled aiming at maximization of yield and grade of agricultural products. The productive potential of a crop is extremely conditioned by the local atmospheric conditions along with requirements for water and nutrients in the soil. The aim of the current work was to scrutinize the effect of soil water status on the ecophysiological parameters and yield components of two cultivars of beans (Phaseolus vulgaris L.) under tropical climatic conditions. The experiment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Land and Water Engineering Phaseolus vulgaris L.; Soil water; Climate; Yield components; Ecophysiological parameters..
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4242
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Características agronômicas e qualidade comercial de cultivares de milho pipoca em alta população - DOI: 10.4025/actasciagron.v31i2.452 Agronomy
Leonello, Luiz Augusto Fumagalli; UNESP; Cazetta, Disnei Amélio; UNESP; Fornasieri Filho, Domingos; UNESP.
Com o objetivo de identificar cultivares de milho pipoca que se constituam em alternativa viável aos produtores foi conduzido um experimento em delineamento experimental de blocos casualizados, com cinco genótipos de milho pipoca (BRS Ângela, Zélia, IAC 112, IAC 12 e IAC TC-01) e quatro repetições, na safra 2003/2004. O experimento foi instalado em espaçamento entre as linhas de 60 cm, com densidade populacional de 75 mil plantas por hectare. No decorrer do experimento, foram avaliadas características agronômicas e comerciais em condição de campo e de laboratório. A variedade BRS Ângela apresentou maior produtividade, seguida pelos híbridos simples IAC, com Zélia (híbrido triplo) apresentando menor produtividade. O híbrido simples IAC 12 apresentou pior...
Palavras-chave: 5.01.00.00-9 Agronomia Zea mays L.; Capacidade de expansão; Componentes produtivos Zea mays L.; Popping expansion; Yield components.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/452
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Changes in canola plant architecture and seed physiological quality in response to different sowing densities Rev. bras. sementes
Jacob Junior,Elias Abrahão; Mertz,Liliane Márcia; Henning,Fernando Augusto; Quilón,Isabel Rodríguez; Maia,Manoel de Souza; Altisent,José Maria Duran.
The aim of this study was to evaluate changes in canola yield components and seed physiological quality in response to different sowing densities. The study was made in a greenhouse at the REIPESOL Company Technological Center, Madrid - Spain, with the commercial "Toccata" hybrid variety. The initial sowing density was 360,000 plants/ha and the plant population was later thinned down to include treatments of 250 and 180 thousand plants/ha. Harvested seeds were sent to the Seed Technology Center Laboratory (CATES) at the Madrid Polytechnic University (UPM) to evaluate changes in plant architecture and yield components, as well as the seed physiological quality of different plant parts. Results demonstrated that canola plants showed changes in morphology and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica napus; Yield components; Seed quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000100002
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Comparative Efficacy of Different Weed Management Strategies in Wheat Chilean J. Agric. Res.
Ehsan Safdar,Muhammad; Asif,Muhammad; Ali,Amjed; Aziz,Ahsan; Yasin,Muhammad; Aziz,Mudassir; Afzal,Muhammad; Ali,Asghar.
Weed management programs should focus on environmental safety along with benefits to the farmer. We evaluated the effects of various weed control methods: ‘daab’ practice (stale seed bed technique), manual hoeing, and the chemical method (mixture of Buctril Super 60EC [bromoxynil + MCPA]0.45 kg ai ha-1 and Puma Super 75EW [fenoxaprop-P-ethyl] 0.75 kg ai ha-1) in combination with different planting geometries: 22.5 cm apart single row, 22.5 cm apart crisscross double row, 30 cm apart single row and broadcast sowings on weed control and grain yield of spring wheat (Triticum aestivum L.) var. Sehar 2006 at the University College of Agriculture, University of Sargodha, Pakistan, during the winters of 2009 and 2010. The chemical method, manual hoeing and ‘daab’...
Tipo: Journal article Palavras-chave: Weed control; Sowing pattern; ‘daab’ practice; Crisscross sowing; Yield components.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200003
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Control of the vegetative growth of 'Shinseiki' pear trees by prohexadione calcium and root pruning PAB
Carra,Bruno; Fachinello,José Carlos; Abreu,Everton Sozo de; Pasa,Mateus da Silveira; Spagnol,Daniel; Giovanaz,Marcos Antônio; Silva,Carina Pereira da.
Abstract: The objective of this work was to evaluate the effect of prohexadione calcium (P-Ca) and root pruning (RP) on the control of the vegetative growth and on fruit production and quality of 'Shinseiki' pear trees, under the climatic conditions of Southern Brazil. The experiment was conducted during the 2013/2014 and 2014/2015 crop seasons, in a 15-year-old orchard of 'Shinseiki' pear trees, trained to a central-leader system, with a 2x5 m spacing between plants, grafted onto Pyrus calleryana rootstock. The experiment was carried out in a randomized complete block design, with six treatments and four replicate. The treatments consisted of the control (without P-Ca application or RP), two P-Ca rates (300 and 600 mg L-1), two root pruning intensities...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyrus pyrifolia; Fruit quality; Growth regulators; High-density orchard; Vegetative vigor; Yield components.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000300177
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Copper use efficiency in soybean cultivars PAB
Moreira,Adônis; Moraes,Larissa Alexandra Cardoso; Nogueira,Thiago Assis Rodrigues; Canizella,Bruna Trovo.
Abstract: The objective of this work was to evaluate the effect of copper use efficiency in soybean cultivars, grown on a typical Ultisol with a high organic matter content, on soil chemical properties and on plant grain yield, nutritional state, and physiological components. The experiment was carried out in greenhouse conditions, in a 5×4 factorial arrangement, with five soybean cultivars (TMG 1066RR, BRS 360RR, NA 6262RR, BMX Turbo RR, and BRS 359RR) and four Cu rates (0, 2, 4, and 8 mg kg-1). Under the studied soil conditions, the DTPA-TEA and Mehlich-1 extractants were efficient in determining available Cu in the soil. Regardless of the cultivars, Cu application increased grain yield (GY), shoot dry weight yield (SDWY), number of pods per pot, GY/SDWY...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; DTPA-TEA; Mehlich 1; Nutritional state; Physiological components; Yield components.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102103
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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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Diallel cross among fresh market tomato inbreeding lines Horticultura Brasileira
Souza,Lívia M de; Paterniani,Maria Elisa AGZ; Melo,Paulo César T de; Melo,Arlete MT de.
The general combining ability (GCA), specific combining ability (SCA), and heterosis were studied in a complete diallel cross among fresh market tomato breeding lines with reciprocal excluded. Fifteen genotypes (five parents and ten hybrids) were tested using a randomized complete block design, with three replications, and the experiments were conducted in Itatiba, São Paulo state, Brazil, in 2005/06. The yield components evaluated were fruit yield per plant (FP), fruit number per plant (FN), average fruit weight (FW); cluster number per plant (CN); fruit number per cluster (FC), fruit wall thickness (FT) and number of locules per fruit (NL). Fruit quality components evaluated were total soluble solids (SS); total titratable acidity (TA); SS/TA ratio,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Yield components; Fruit quality; Combining ability; Heterosis; Plant breeding.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200011
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Double purpose wheat: correlation analysis of forage yield components Ciencia e Investigación Agraria
Morant,Alicia; Merchán,Héctor; Lutz,Eugenio.
The direct and relative contribution of characters associated with forage production were evaluated in a comparative assay of wheat cultivars to contribute to an ideotype defnition when selecting double purpose material for forage and grain production. Simple correlations for all of the possible combinations among the measured variables were calculated. The correlation partition method, known as path coeffcient, was applied to determine the causes of this association and to measure the relative importance of each factor. Forage production during the vegetative period was measured for each variety at the dates in which the apex reached the double ridge state (3 - 4 in the Nerson scale). The double ridge state was considered the deadline of the vegetative...
Tipo: Journal article Palavras-chave: Correlation; Forage yield; Path coeffcient analysis; Triticum; Yield components; Wheat.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100005
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Economically optimal water depth and grain yield of common bean subjected to different irrigation depths AGRIAMBI
Conceição,Chaiane G. da; Robaina,Adroaldo D.; Peiter,Marcia X.; Parizi,Ana R. C.; Conceição,João A. da; Bruning,Jhosefe.
ABSTRACT Common bean crop plays an important role in the world, not only in economic aspects but also in social development. The objective of this study was to evaluate the grain yield and the economically optimal water depth which reflects the maximum technical efficiency of the common bean crop. The experiment was conducted in greenhouse, in Alegrete - RS, from February to May 2016. A completely randomized design was used, consisting of five water replacement treatments (25, 50, 75, 100 and 125% crop evapotranspiration - ETc) and four replicates. Based on the obtained results, both water deficit and water excess directly affected the final grain yield of the crop. Maximum grain yield was 3,554.1 kg ha-1, obtained by applying 492.72 mm (100% ETc). On the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Water management; Yield components.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700482
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Effect of fertilization at sowing on nutrition and yield of crambe in second season Rev. Bras. Ciênc. Solo
Soratto,Rogério Peres; Souza-Schlick,Genivaldo David de; Fernandes,Adalton Mazetti; Souza,Emerson de Freitas Cordova de.
The interest in crambe (Crambe abyssinica ) cultivation in Brazil is on the rise, whereas information on the nutrient requirements for this crop is scarce. The objective of this work was to evaluate the effect of nitrogen-phosphorus-potassium (N-P2O5-K2O formula 8:28:16) fertilization (0, 150, and 300 kg ha-1) on crambe shoot biomass production, grain and oil yields, and nutrient extraction and exportation in the second growing season after soybean. The experiment with a Haplorthox (Dystroferric Red Latosol) was carried out for two years in Botucatu, São Paulo State, Brazil. A randomized complete block design with eight replications was used. Fertilization with NPK at sowing increased the shoot biomass production, grain yield, grain oil content, as well as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crambe abyssinica; Yield components; Nutrient extraction; Nutrient exportation.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000300012
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Effect of flag leaf clipping and GA3 application on hybrid rice seed yield International Rice Research Institute
Islam, M. S.; Ahmed, G. J. U.; Julfiquar, A. W..
p.46-47
Palavras-chave: Flag leaf; Leaf cuttings; Gibberellic acid; Crop yield; Yield components; Hybrid rice; Bangladesh.
Ano: 2005 URL: http://hdl.handle.net/123456789/1133
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Effect of intercropping wheat with forage legumes on wheat production and ground cover PAB
Tomm,Gilberto Omar; Foster,Robert Kerry.
The use of winter legumes in southern Brazil is hindered by the slow growth of these species during establishment exposing soil surface to erosion. Introduction of these species along with spring wheat (Triticum aestivum L.) was studied as a means of increasing ground cover during their initial establishment period, without reducing wheat grain yield. Two experiments were conducted in nearby areas, one in each year. Birdsfoot trefoil (Lotus corniculatus L.), red clover (Trifolium pratense L.) cultivar Quiñequelli, white clover (T. repens L.), and arrowleaf clover (T. vesiculosum Savi) did not reduce cereal yield in either year. Wheat yield was reduced by intercropped red clover cultivar Kenland and by subclover (T. subterraneum L.) in the first year. No...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Feed crops; Soil; Plant cover; Yield components.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000300010
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Effect of low light on yield and physiological attributes of rice International Rice Research Institute
Lakshmi Praba, M.; Vanangamudi, M.; Thandapani, V..
p.71-73
Palavras-chave: Light intensity; Yields; Yield components; Chlorophyll; Protein; Nitrate reductase; Dry matter; Growth stages.
Ano: 2004 URL: http://hdl.handle.net/123456789/1048
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Effect of low-light stress at various growth phases on yield and yield components of two rice cultivars International Rice Research Institute
Singh, S..
p.36-37
Palavras-chave: Crop growth stage; Crop yield; Growth; Harvest index; Light intensity; Panicles; Plant height; Spikelets; Sterility; Stress; Stress response; Yield components.
Ano: 2005 URL: http://hdl.handle.net/123456789/1171
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Effect of nitrogen and silicon levels on growth, yield attributes, and yield of rice in Alfisols International Rice Research Institute
Singh, K. K.; Singh, K.; Singh, R..
p.40-41
Palavras-chave: Nitrogen fertilizers; Silicon fertilizers; Growth; Crop yield; Yield components; Alfisols; Urea; Superphosphates; Calcium silicate; Application rates; India.
Ano: 2005 URL: http://hdl.handle.net/123456789/1117
Registros recuperados: 67
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