Vigor de sementes e desempenho de plantas de milho

Mondo, Vitor Henrique Vaz; Cícero, Silvio Moure; Neto, Durval Dourado; Pupim, Túlio Lourenço; Dias, Marcos Altomani Neves

doi:10.1590/s0101-31222012000100018

Cited by 16 publications

(13 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results about the effects of vigor in grain production were found on soybean by and Tavares et al (2013), on irrigated rice by Höfs et al (2004) and Mielezrski et al (2008) and on maize by Ludwig et al (2009) and Mondo et al (2012;.…”

Section: Resultssupporting

confidence: 76%

Seedling emergence and yield performance of wheat cultivars depending on seed vigor and sowing density

et al. 2017

View full text Add to dashboard Cite

-The use of high quality seeds, the appropriate management practices and the selection of promising genotypes are strategies to exploit the wheat yield potential. Thus, the goal of this study was to evaluate the effect of the vigor level of wheat seeds submitted to different sowing densities on seedling emergence, tillering and yield performance culture. The experiments were conducted in Londrina and Ponta Grossa, Paraná state, Brazil, with a completely randomized block design, in a 2x2x2 factorial scheme, with four replications. Two levels of seed vigor (high and low), two sowing densities (200 and 400 viable seeds per m 2 ) and two wheat cultivars (BRS Sabiá and CD 150) were evaluated. The conducted tests were: seedling emergence, number of tillers, yield components, grain yield and apparent harvest index. The use of high vigor seeds helps the establishment of the plant stand and yield performance in both locations. The 400 seeds per m 2 seedling density results in a lower number of tillers per plant in both locations. BRS Sabiá, in Ponta Grossa, has the highest grain yield.Index terms: Triticum aestivum L., seed quality, seedling establishment, yield components, grain yield.Emergência de plântulas e desempenho produtivo de cultivares de trigo em função do vigor de sementes e densidades de semeadura RESUMO -A utilização de sementes de alta qualidade, adequadas práticas de manejo e escolha de genótipos promissores são estratégias para explorar o potencial de rendimento do trigo. O objetivo neste trabalho foi avaliar o efeito do nível de vigor de sementes de trigo, submetidas a diferentes densidades de semeadura, sobre a emergência de plântulas, o perfilhamento e o desempenho produtivo da cultura. Os experimentos foram conduzidos em Londrina-PR e Ponta Grossa-PR, sob o delineamento experimental de blocos casualizados, em esquema fatorial 2x2x2, com quatro repetições. Foram avaliados dois níveis de vigor de sementes (alto e baixo), duas densidades de semeadura (200 e 400 sementes viáveis por m 2 ) e duas cultivares de trigo (BRS Sabiá e CD 150). As avaliações efetuadas foram: emergência de plântulas, número de perfilhos, componentes do rendimento, produtividade de grãos e índice de colheita aparente. A utilização de sementes de alto vigor favorece o estabelecimento do estande de plantas e o desempenho produtivo do trigo, em ambos os locais. A densidade de semeadura de 400 sementes por m 2 resulta em menor número de perfilhos por planta, em ambos os locais. A cultivar BRS Sabiá, em Ponta Grossa, apresenta maior produtividade de grãos.Termos para indexação: Triticum aestivum L., qualidade de sementes, estabelecimento de plântulas, componentes do rendimento, produtividade de grãos.

show abstract

Section: Resultssupporting

confidence: 76%

Seedling emergence and yield performance of wheat cultivars depending on seed vigor and sowing density

et al. 2017

View full text Add to dashboard Cite

show abstract

“…According to Silveira et al (2005), one of the characteristics that most contribute to adequate plant stand and to improvement of crop yield is uniformity of the longitudinal distribution of seeds. Thus, an individual within a population experiences the effects of restriction on growth rate according to the presence and arrangement of neighbors in the plant population (Mondo et al, 2012). More equidistant distributions reduce these effects of restriction and contribute so that plants more completely and efficiently utilize the resources of a determined soil area (Freitas et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…This characteristic is important in breeding programs, for it is an effective indicator of the common bean plant architecture (Moura et al, 2013). In greater longitudinal distances between plants, there is likely less competition, and this favors greater absorption of nutrients, sunlight, and water, with a positive effect on yield (Mondo et al, 2012). Azevedo et al (2008) observed increases in the number of pods per area, 100 grain weight, and grain yield of common bean as the number of plants per area declined.…”

Section: Resultsmentioning

confidence: 99%

The effect of longitudinal distribution and seed depth on grain yield of common bean

2018

View full text Add to dashboard Cite

-The aim of this study was to quantify the longitudinal distribution of plants in the row and seed depth and their effects on hypocotyl length and diameter and on yield components and grain yield of common bean, specifically the cultivar BRSMG Realce in a Latossolo soil in the Cerrado (Brazilian tropical savanna). The data on plant distances in the row were obtained in the field with the aid of a measuring tape in four rows of 2.5 m length. Seed depth was determined by measuring the length of the hypocotyl that was within the soil after pulling up the plant. Hypocotyl diameter was evaluated at ground level using a digital caliper. Descriptive (univariate) statistical analysis was applied to the data. Linear correlations were established among distribution of distance between plants in the row, the depth of sowing, the characteristics of the hypocotyls, and grain yield data of common bean. Negative linear regression was observed between grain yield with sowing depth, and positive linear regression between hypocotyl diameter and longitudinal spacing between plants in the row. In the sowing process, special attention should be given to seed distribution in the row to avoid subsequent uneven plant distribution and to seed depth to avoid yield loss.Index terms: Phaseolus vulgaris, hypocotyl diameter, hypocotyl length, plant spacing, sowing quality.Distribuição longitudinal e profundidade da semente afetando a produtividade de grãos do feijão-comum RESUMO -Objetivou-se com o presente estudo quantificar a distribuição longitudinal de plantas na linha e profundidade da semente no solo e seus efeitos no comprimento e diâmetro do hipocótilo, nos componentes de produção e produtividade de grãos de feijão-comum, cultivar BRSMG Realce, em latossolo do Cerrado. Os dados da distância entre plantas na linha foram obtidos em campo com o auxílio de trena em quatro linhas de feijão de 2,5 m de comprimento. A profundidade de semeadura foi determinada medindo-se o comprimento do hipocótilo dentro do solo após o arranquio da planta. O diâmetro do hipocótilo foi avaliado ao nível do solo utilizando-se paquímetro digital. Os dados foram submetidos à análise estatística descritiva (univariada). Estabeleceram-se correlações lineares entre a distribuição da distância entre plantas na linha, da profundidade de semeadura e as características do hipocótilo e dados de produtividade de grãos do feijão-comum. Observou-se regressão linear negativa da produtividade de grãos com profundidade de semeadura e positiva com diâmetro do hipocótilo e espaçamento longitudinal entre plantas na linha. Especial atenção deve ser dada no processo de semeadura para evitar distribuição desuniforme de plantas da linha de semeadura e na profundidade da semente para evitar reduções na produtividade.Termos para indexação: Phaseolus vulgaris, comprimento do hipocótilo, diâmetro do hipocótilo, espaçamento entre plantas, qualidade de plantio.1

show abstract

“…For Schuch et al (2000), differences in vigor of black oat seeds affected only the initial plant growth, and the effects of seed vigor were reduced as the crop developed. Mondo et al (2012) also suggest that the influence of seed vigor is reduced in developmental stages of the plants, and the plant response varies according to genotype and environmental relations.…”

Section: Resultsmentioning

confidence: 99%

Physiological quality, initial establishment and yield of wheat according to the seed treatment method1

Freiberg

Ludwig

Decarli

et al. 2017

Pesqui. Agropecu. Trop.

View full text Add to dashboard Cite

New technologies are being incorporated to the seed treatment process, such as the use of products on industrial scale. This study aimed at evaluating the seed quality of wheat cultivars, as well as the influence of the seed treatment method on the establishment and yield of this crop. Seeds of the cultivars Jadeite 11, Quartzo and Tec Frontale were treated with the Spectro® fungicide (difenoconazole - 200 mL 100 kg-1 of seeds), Cruiser Opti® insecticide (thiamethoxam + lambda-cyhalothrin - 200 mL 100 kg-1 of seeds) and Polifix G4 polymer (100 mL 100 kg-1 of seeds). A completely randomized design, with four replicates, was used. The treatments consisted of industrial treatment, on farm treatment with the same products and control. Germination, first germination count and moisture content tests were carried out immediately after the seed treatment and at 30, 90 and 150 days of storage. Seedling emergence in beds was evaluated at 30, 60 and 120 days of storage. Under a randomized block design, seedling emergence and grain yield were evaluated in the field in two sowing seasons. The conventional or industrial seed treatment methods do not reduce the physiological quality and emergence of high-vigor seeds stored for 150 days, under controlled conditions of temperature and humidity. The conventional or industrial seed treatment with diphenoconazole + thiamethoxam + lambda-cyhalothrin + polymer does not increase the wheat crop plant stand and grain yield.

show abstract

Vigor de sementes e desempenho de plantas de milho

Cited by 16 publications

References 26 publications

Seedling emergence and yield performance of wheat cultivars depending on seed vigor and sowing density

Seedling emergence and yield performance of wheat cultivars depending on seed vigor and sowing density

The effect of longitudinal distribution and seed depth on grain yield of common bean

Physiological quality, initial establishment and yield of wheat according to the seed treatment method1

Contact Info

Product

Resources

About