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| Registros recuperados: 127 | |
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| Luz,Silmara da Correia; Silva,Paulo Regis Ferreira da; Boeni,Madalena; Bredemeier,Christian; Anghinoni,Ibanor; Menegati,Guilherme Batista; Maass,Matheus Barreto; Miozzo,Laís Correa. |
| ABSTRACT: Mean grain yield of flooded rice in southern Brazil has increased in recent years due to the use of high-yield cultivars and improvement of crop management practices. Nevertheless, stagnation in grain yields has been observed in some rice-producing regions. Adoption of conservation tillage systems based on cover crops may be a strategy to increase rice grain yield potential. The objective of the present study was to evaluate the effect of winter cover crops on initial establishment, development, and grain yield of flooded rice (Oryza sativa L.) grown under different fertilization levels and no-tillage. A field experiment was carried out for three consecutive years (2010/11, 2011/12, and 2012/13) in Cachoeirinha, Rio Grande do Sul, South Brazil.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain yield; Plant development; Fertilizer rate; Fertilization response. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100509 |
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| Spolaor,Leandro Teodoski; Gonçalves,Leandro Simões Azeredo; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Scapim,Carlos Alberto; Bertagna,Filipe Augusto Bengosi; Kuki,Mauricio Carlos. |
| ABSTRACT The use of plant growth-promoting bacteria is a promising alternative with low environmental impact to increase the efficiency of use of chemical fertilizers, ensuring high yield with better cost-effective ratio. In maize crops, several studies have demonstrated an increased yield when Azospirillum-based inoculants are used. In the case of popcorn, there are no available studies related to use of inoculation and its response on yield parameters. Thus, the aim of this study was to evaluate the field performance of popcorn when inoculated with the commercial product Masterfix L (A. brasilense Ab-V5 and A. brasilense Ab-V6) and the non-commercial inoculant UEL (A. brasilense Ab-V5 + Rhizobium sp. 53GRM1) associated with nitrogen fertilization. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azospirillum brasilense; Rhizobium sp.; Inoculants; Grain yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000100033 |
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| Linhares,E.L.R; Silva,P.S.L; Oliveira,O.F; Oliveira,F.H.T; Torres,S.B. |
| Reduced use of herbicides that cause environmental pollution problems is of great interest in modern agriculture. Soil mulching with gliricidia (Gliricidia sepium) branches does not have an allelopathic effect on corn, but decreases weed populations. The objective of this study was to evaluate the effects of gliricidia planting density, when grown as an intercrop, on weed control and corn yield parameters. A randomized block design with split-plots and ten replicates was adopted. Corn cultivars AG 1051 and BM 3061 were grown without hoeing, with two hoes (at 24 and 44 days after planting), and intercropped with gliricidia (planted simultaneously with corn, between crop rows, using two seedlings/pit, spaced at 30, 40, or 50 cm). Twenty-one weed species were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Gliricidia sepium; Green ear yield; Grain yield. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000500010 |
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| Apáez Barrios, Maricela. |
| El garbanzo es una de las leguminosas más consumidas en México por sus características nutrimentales y nutracéuticas, lo que lo hace un cultivo se suma importancia. El objetivo del estudio fue determinar la respuesta a la distancia entre hileras de siembra y fertilización nitrogenada sobre índices de análisis de crecimiento, la biomasa, rendimiento y calidad de rendimiento. Durante el ciclo de producción otoño invierno de 2011, se realizó un estudio con garbanzo (Cicer arietinum L.) en terreno de productores cooperantes bajo condiciones de humedad residual en Huitzuco Gro., Méx, de clima cálido. Se evaluó la distancia entre hilera a 40 cm y 80 cm (D40 y D80, respectivamente) y fertilización nitrogenada (FN): 0, 50 y 100 kg N ha-1 (N0, N50 y N100,... |
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Palavras-chave: Biomasa total; Distancia entre hilera; Nitrógeno; Rendimiento de grano; Rentabilidad económica; Total biomass; Distance between row; Nitrogen; Grain yield; Profitability; Botánica; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2010 |
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| Silva,Flavio H. da; Cunha,Paulo C. R. da; Almeida,André C. de S.; Araújo,Lucas da S.; Jakelaitis,Adriano; Silveira,Pedro M. da. |
| ABSTRACT High corn yields in high-tech systems are related to proper crop implementation. This study aimed to evaluate the effects of variability in the distribution of seeds along the planting row on corn production components. The study was conducted under Cerrado conditions in the municipality of Urutaí, GO, Brazil. The experimental design was randomized blocks in a 5 x 2 factorial scheme, with four replicates. The effects of five coefficients of variation (0, 20, 40, 60 and 80%) of non-uniformity in the spatial distribution of seeds along the planting row of two corn hybrids (P30F53HX and P3646HX) were evaluated. No interactions were observed for the analysed corn variables. However, as the non-uniformity in seed distribution along the planting row... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coefficient of variation; Grain yield; Non-uniformity; Zea mays. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001201172 |
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| Andrade, Carlos Alberto de Bastos; UEM; Scapim, Carlos Alberto; UEM; Braccini, Alessandro de Lucca e; UEM; Martorelli, Danilo Takara; UEM. |
| Com o objetivo de caracterizar o crescimento e a produtividade de grãos, das cultivares ‘Ouro Negro’ e ‘BRS MG Talismã’, em condições de campo, na Estação Experimental de Coimbra, Estado de Minas Gerais, pertencente à Universidade Federal de Viçosa (UFV), experimentos de campo foram conduzidos em que se avaliaram o crescimento vegetativo e a produtividade de grãos das duas cultivares. Foram efetuadas amostragens aos 12, 22, 36, 51, 65 e 76 dias após emergência (DAE), sendo determinadas a área foliar e a biomassa dos diferentes componentes da parte aérea, além do índice de área foliar e das taxas de crescimento absoluto e assimilatórias líquidas. Aos 80 DAE (colheita), foram determinados a produtividade de grãos e os seus componentes (número de plantas por... |
| Tipo: Pesquisa no campo |
Palavras-chave: 5.01.03.04-0 Produção de Mudas Phaseolus vulgaris; Genótipos; Análise de crescimento; Componentes da produção; Produtividade de grãos. Fitotecnia Phaseolus vulgaris; Genotype; Growth analysis; Production components; Grain yield. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6397 |
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| Krüger,Cleusa A. M. B.; Medeiros,Sandro L. P.; Silva,José A. G. da; Dalmago,Genei A.; Valentini,Ana P. F.; Wagner,Juliano F.. |
| ABSTRACT The objective of this study was to identify the plant arrangement that allows greater grain yield with adaptability and stability of rapeseed hybrids. The experiments were conducted in randomized block design with four replicates and the 12 treatments consisted of combination of inter-row spacings (0.20, 0.40, and 0.60 m) and plant densities (20, 40, 60 and 80 plants m-2). The hybrids Hyola 432 (early cycle) and Hyola 61 (medium cycle) were cultivated in three growing seasons (2008, 2009 and 2010). Grain yield was evaluated based on the parameters adaptability and stability according to the models of Wricke and Eberhart & Russell. The plant arrangement for obtaining higher grain yield depends on the cultivated genotype. Higher grain yield was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica napus L.; Inter-row spacing; Plant density; Grain yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100036 |
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| Espindula,Marcelo Curitiba; Rocha,Valterley Soares; Souza,Leandro Torres de; Souza,Moacil Alves de; Campanharo,Marcela; Grossi,José Antônio Saraiva. |
| The objective in this study was to evaluate the effects of nitrogen rates in association with rates of the growth retardant trinexapac-ethyl on wheat. The experiment was conducted in Viçosa, MG and arranged in a 5×4 factorial, randomized block design, with four repetitions. A combination of five nitrogen rates (30, 60, 90, 120 and 150kg ha-1) with four rates of trinexapac-ethyl (0, 62.5, 125 and 187.5g ha-1) were tested. Trinexapac-ethyl promotes reduction of soot dry mass and grain yield at the lowest N rates, but at the highest N rates there is increase in these characteristics. The combination between N and trinexapac-ethyl rates that promotes higher shoot dry mass is 150kg ha-1 and 187g ha-1 but that promotes higher grain yield is 100kg ha-1 and 120g... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Plant height; Lodging; Grain yield. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200002 |
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| Duarte,Aildson Pereira; Abreu,Mônica Ferreira de; Francisco,Eros Artur Bohac; Gitti,Douglas de Castilho; Barth,Gabriel; Kappes,Claudinei. |
| ABSTRACT: Unchanged reference values of grain nutrient contents for corn have been used for over 20 years, despite yield increases, the development of new hybrids, and modifications to cropping systems, especially the establishment of in-season second crops and the wide adoption of no-tillage. This study measured macro- and micronutrient contents in corn grains from different regions, in the first (summer) and second (fall) crop, to update the reference values of estimated nutrient removal. A secondary objective was to determine whether there were correlations between grain nutrient contents and grain yields and densities. In this study, 175 corn grain samples of experiments on cultivar evaluation and 22 samples from soil management trials from five states... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn grains; Mineral nutrient contents; Grain yield; Grain density. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100517 |
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| SHARIFI,PEYMAN; EBADI,ALI AKBAR. |
| ABSTRACT An experiment was conducted to examine the influencing characters on rice by using 64 rice genotypes, including four local landraces, four released cultivars and 56 mutant lines (M5) derived from these genotypes, with application of the genotype by trait (GT) biplot methodology. The first two principal components (PC1 and PC2) accounted for 46.6% of total variation in 64 genotypes. The polygon view of GT biplot suggested seven sections for 64 genotypes. The vertex G38 had good amounts of grain yield, panicle length, hundred grain weight, internodes length, plant height and fertility percentage. Generally based on vector view it was demonstrated that the selection of high grain yield would be performed via thousand grain weight, panicle weight and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain yield; Polygon view; Trait associations; Rice; Vector view. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100343 |
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| Quatrin,Mauricio Pase; Olivo,Clair Jorge; Simonetti,Gabriela Descovi; Bratz,Vinicius Felipe; Godoy,Guilherme Librelotto de; Casagrande,Lucas Giovane. |
| ABSTRACT The use of inoculants containing plant growth-promoting bacteria is an alternative to increase the efficiency of nitrogen fertilizers. Studies evaluating the effects of inoculation on forage yield, straw yield, and grain yield in dual-purpose wheat cultivars are scarce. This study aimed to evaluate the forage yield and grain yield in dual-purpose wheat inoculated with Azospirillum brasilense and fertilized with increasing nitrogen rates during two agricultural years (2016-2017) under cutting management. The trial was carried out in a completely randomized block design with four replicates, using a 2 x 4 factorial arrangement. The factors were the inoculation (control or A. brasilense) and nitrogen rates (0, 50, 100 and 150 kg ha-1 of N). Forage,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: “BRS Tarumã” wheat; Forage yield; Grain yield; Strains Ab-V5 and Ab-V6; Triticum aestivum.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100208 |
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| Teixeira Filho,Marcelo Carvalho Minhoto; Buzetti,Salatiér; Andreotti,Marcelo; Sá,Marco Eustáquio de; Arf,Orivaldo; Megda,Márcio Mohamed. |
| High wheat yields require good N fertilization management. The objective of this study was to evaluate the effects of different N applications at sowing using Entec (N source with nitrification inhibitor) and urea (traditional N source) at covering, on four wheat cultivars. The experiment was conducted in a randomized block design in a factorial scheme, with four replications, at the Experimental Station of the Faculdade de Engenharia de Ilha Solteira - UNESP, on a dystrophic, epi-eutrophic alic Red Latosol with loamy texture, formerly under savannah vegetation. Four N rates (0, 60, 120, and 180 kg ha-1) were tested, applied at sowing in the case of Entec and top-dressed 40 days after plant emergence in the case of urea, and the four wheat cultivars E 21,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L.; Savannah soil; Entec; Urea; Grain yield; Yield components. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000500023 |
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| Ayed,Sourour; Rezgui,Mohsen; Othmani,Afef; Rezgui,Mounir; Trad,Hiba; Silva,Jaime A. Teixeira-da; Ben Younes,Mongi; Ben Salah,Hamadi; Kharrat,Mohamed. |
| Abstract Wheat is a staple crop in Tunisia, but little is known about the response of Tunisian durum wheat (Triticum turgidumssp.durum) and bread wheat (Triticum aestivum L.) to water stress. In semi-arid regions, where cereals are concentrated, grain yield is subject to water deficit especially due to variability in rainfall. Therefore, the objective of this study was to evaluate the response to water stress of three durum wheat (Mâali, Nasr and Salim) and two bread wheat (Tahent and Utique) varieties. The experimental design was a complete randomized block, water treatments were rainfed conditions (T0) and irrigation applied at the tillering and flowering stages (T1, control) with three replications per treatment, and data was analyzed by ANOVA and Tukey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water stress; Durum wheat; Bread wheat; Grain yield; Yield components. |
| Ano: 2017 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000100013 |
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| VIECELLI,M.; PAGNONCELLI JR.,F.B.; TREZZI,M.M.; CAVALHEIRO,B.M.; GOBETTI,R.C.R.. |
| ABSTRACT: The combination of herbicides and other pesticides can influence weed and crop management. This study aimed to evaluate the response of the combination of different herbicides with insecticides or fungicides of different chemical groups on the development and yield of wheat grains of the cultivar ORS Vintecinco. The experimental design was a randomized block design with three replications. The experiment consisted of 33 treatments, as follows: control without application and application of the herbicides 2,4-D (1,005 g a.e. ha-1), bentazon (756 g a.i. ha-1), metsulfuron-methyl (3 g a.i. ha-1), and pyroxsulam (16 g a.i. ha-1), isolated or combined with the insecticides chlorfluazuron (15 g a.i. ha-1), chlorpyrifos (720 g a.i. ha-1), deltamethrin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Synergism; Antagonism; Tolerance; Grain yield. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100263 |
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| SOARES SOBRINHO, J.; FRONZA, V.; CHAGAS, J. H.; ALBRECHT, J. C.; SCHEEREN, P. L.; CASTRO, R. L. de. |
| A fronteira para expansão da cultura do trigo representada pelo Brasil Central concentra sua maior área em regiões de clima tropical. No entanto, parte desta área, localizada principalmente no estado de Minas Gerais, é caracterizada pela ocorrência de clima temperado. Em dois locais (Coromandel e Uberaba), de clima tropical, e dois (Madre de Deus de Minas e São Gonçalo do Sapucaí) de clima temperado, foi avaliado o comportamento de 35 genótipos de trigo. As temperaturas mais baixas do clima temperado foram capazes de mitigar os efeitos da brusone e do déficit hídrico, pela menor incidência da doença e pela redução na evapotranspiração, respectivamente, proporcionando rendimento de grãos significativamente maior que nos locais de clima tropical. Assim, a... |
| Tipo: Folhetos |
Palavras-chave: Trigo; Variedade; Clima Tropical; Região Temperada; Grão; Rendimento; Cultivars; Grain yield; Wheat. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1146349 |
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| Cortez,Jorge W.; Anghinoni,Matheus; Arcoverde,Sálvio N. S.. |
| ABSTRACT Seed metering system and tractor-seeder forward speed are factors that affect sowing. Therefore, this study aimed to evaluate sowing and agronomic components of corn as a function of seed metering mechanism and tractor-seeder forward speed, in addition to evaluating the yield data obtained from a harvester with a yield monitor. The soil of the area is classified as Distroferric Red Latosol. The experiment was set up in the second crop season of 2018 and treatments consisted of two seed metering mechanisms (M) (pneumatic and mechanical), and tractor-seeder forward speeds (S) (3, 5, 7, and 9 km h−1). The pneumatic system promoted the best longitudinal distribution, with values above 90%, and the increased sowing forward speed reduced normal spacings... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain yield; Pneumatic sowing; Sowing forward speed. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100061 |
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| Valério,Igor Pirez; Carvalho,Fernando Irajá Félix de; Oliveira,Antônio Costa de; Benin,Giovani; Souza,Velci Queiroz de; Machado,Amauri de Almeida; Bertan,Ivandro; Busato,Cyrano Cardoso; Silveira,Gustavo da; Fonseca,Daniel Andrei Rob. |
| Seeding density adjustments is one of the practices that most influence grain yield, as well as other agronomic traits. Therefore, the objective of this study was to determine the ideal plant stand to achieve the maximum grain yield in genotypes showing differential tillering ability. Also, to establish the associations between the genotypes used with tillering and other agronomically important traits as weight of a thousand grains. Two experiments were conducted in 2005 and 2006 in Capão do Leão, Rio Grande do Sul state, Brazil. Five low (JURITI, BR 18, CEP 29, BR 18 and CD 108) and five high (CD 114, SAFIRA, FIGUEIRA, BRS 177 and UMBU) tillering potential wheat cultivars were tested for two years on a split-plot design. The results indicate the need for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L.; Grain yield; Number of fertile tillers; Plant stand. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000100004 |
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| Registros recuperados: 127 | |
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