Genótipos de trigo em diferentes densidades de semeadura

Tavares, L. C. V.; Foloni, José Salvador Simoneti; Bassoi, M. C.; Prete, Cássio Egídio Cavenaghi

doi:10.1590/s1983-40632014000200010

Cited by 18 publications

(23 citation statements)

References 17 publications

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“…This author confers this reduction to the existing competition due to the increase in seed sowing density. However, Tavares et al (2014) found no significant difference for grain mass at densities of 150 to 450 m² plants.…”

Section: Resultsmentioning

confidence: 66%

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Agronomic performance of wheat as a function of different spacing and sowing densities in two agricultural years

Sander¹,

Costa²,

Duarte³

2017

Afr. J. Agric. Res.

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Section: Resultsmentioning

confidence: 66%

“…For the variable hectolitric, Tavares et al (2014) , concluded that the yield varies according to the genotype used, and some cultivars have a lower capacity of compensation in relation to others, that is, each cultivar has a different performance when subjected to random plant reduction.…”

Section: Resultsmentioning

confidence: 99%

Agronomic performance of wheat as a function of different spacing and sowing densities in two agricultural years

Sander¹,

Costa²,

Duarte³

2017

Afr. J. Agric. Res.

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“…However, under favorable weather conditions, the use of high rates of nitrogen is not always the most appropriate strategy. The increase of grain yield can be achieved by improvements of the utilization efficiency of the fertilizer by the plant (Tavares et al, 2014).…”

Section: Days After Emergence (Dae)mentioning

confidence: 99%

The nitrogen supply in wheat cultivation dependent on weather conditions and succession system in southern Brazil

Arenhardt¹,

Silva²,

Gewehr³

et al. 2015

Afr. J. Agric. Res.

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High wheat yields, besides the genetic potential and edaphoclimatic conditions, are obtained by proper management and nitrogen use. The objective of the study was to define the most appropriate time for N-fertilizer application, considering the range of greatest wheat requirements, dependent on the succession system type and the predictability of favorable and unfavorable years. The study was carried out in the 2008 to 2012 years, in Augusto Pestana, Rio Grande do Sul, Brazil. The experimental design was randomized blocks with four replications, with N-fertilizer application at 0, 10, 30 and 60 days after emergence, considering the corn/wheat and soybean/wheat succession system. The study found that the best time for nitrogen fertilizer application on wheat is mostly influenced by the year of cultivation and is less influenced by the succession system type. The appropriate time for the Nfertilizer application in favorable years of cultivation was about 45 days after emergence. In unfavorable years, it must be anticipated. Regardless of the cultivation year and the succession system type, the Nfertilization at 30 days after emergence evidenced the highest means as the most stabile grain yield.

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“…Os genótipos são afetados de forma distinta pela densidade de semeadura (OZTURK et al, 2006) pois apresentam diferenças na capacidade de perfilhamento (TAVARES et al, 2014). Cultivares com maior potencial de perfilhamento são capazes de manter elevada a produtividade de sementes, mesmo quando cultivadas em baixas densidades, diferentemente de cultivares com baixo perfilhamento, que dependem de uma maior densidade de semeadura, já que são menos eficientes em compensar o menor número de espigas por unidade de área (VALÉRIO et al, 2009).…”

Section: Introductionunclassified

Produtividade E Qualidade Fisiológica De Sementes De Cultivares De Trigo Em Diferentes Densidades De Semeadura

Marinho

Bazzo²,

Cardoso³

et al. 2018

COLLOQ AGRARIAE

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Determination of optimum wheat sowing density, adequate to the genotype and the environment, is essential to avoid lodging and competition between plants, which can reduce seed productivity and quality. In this sense, the objective of this study was to evaluate the effect of seeding density (in cultivars BRS Sabiá e BRS Gralha-Azul) on productivity and physiological quality of seeds of two wheat cultivars. The seeds were produced in the experimental field of the Brazilian Agricultural Research Corporation, in Londrina-PR, at the National Center for Soy Research (Embrapa Soja) in experimental design of randomized blocks in a 2x4 factorial scheme, with four replications. The following evaluations were performed: seed productivity, thousand seeds mass, first count of germination, germination, seedling length, seedling dry weight, accelerated aging, seedling emergence in sand and emergency speed index. In general, the increase in seed density increases seed production and does not alter germination and emergence of seedlings of both cultivars. The cultivar BRS Gralha-Azul proved to be more productive than BRS Sabiá. The increase in seeding density increases seed vigor for BRS Sabiá cultivar and reduces to BRS Gralha-Azul cultivar.

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Genótipos de trigo em diferentes densidades de semeadura

Cited by 18 publications

References 17 publications

Agronomic performance of wheat as a function of different spacing and sowing densities in two agricultural years

Agronomic performance of wheat as a function of different spacing and sowing densities in two agricultural years

The nitrogen supply in wheat cultivation dependent on weather conditions and succession system in southern Brazil

Produtividade E Qualidade Fisiológica De Sementes De Cultivares De Trigo Em Diferentes Densidades De Semeadura

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