Sementes de soja produzidas em épocas de safrinha na região oeste do Estado do Paraná

Albrecht, Leandro Paiola; Braccini, Alessandro de Lucca e; Ávila, Marizangela Rizzatti; Scapim, Carlos Alberto; Barbosa, Mauro Cezar; Stülp, Marcibela

doi:10.4025/actasciagron.v31i1.6638

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…The positioning of genotypes with a higher level of adaptation to periods of stress is fundamental for the maintenance and increase of agricultural production. The use of more efficient management techniques and higher-quality seeds is the first step in obtaining superior yields and high-quality seeds (ALBRECHT et al, 2009;PESKE et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The stress-inducing cultivation environment may alter plant metabolism and reduce leaf area formation (SHAO et al, 2008), the yield of the plants and modify the level and quality of the compounds present in the seeds (ALBRECHT et al, 2009). In addition, it is possible to promote the elevation of reactive oxygen species in the plants and to trigger oxidative stress (SHAO et al, 2008), reducing the physiological quality of the seeds (BEWLEY et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Yield, Physiological Quality and Chemical Composition of Phaseolus Vulgaris Seeds, Produced in the State of Rio Grande Do Sul, Brazil

Pedó¹,

Martins²,

Delias³

et al. 2020

RCR

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The objective of this study was to evaluate the yield and physiological quality of bean seeds in two agricultural crops, and the chemical composition of seedlings submitted to adverse temperatures during germination. For the field experiment, a randomized block design was used, using five genotypes, BRS Embaixador, IPR Tuiuiú, Guabiju, Carioquinha and Mouro, arranged in four replicates. The experimental units were composed of five lines with five meters in length, where 25 plants were randomly collected per experimental unit to measure the characters of interest. For laboratory testing the seeds produced were submitted to three temperatures (15, 25 and 35°C) during germination under controlled conditions. The evaluated characters were: grain yield, mass of a thousand seeds, germination, first germination count, starch content, soluble sugar, soluble protein and total amino acids. The data were submitted to analysis of variance and later compared by the Tukey test. Yield per plant revealed changes between the agricultural crops, as well as among the genotypes tested. Germination and the first germination count revealed higher magnitudes in seeds produced by BRS Embaixador, IPR Tuiuiu and Carioquinha genotypes. For all genotypes, protein and amino acid levels were higher in seedlings submitted to lower temperatures. The levels of starch and total soluble sugars were higher in seedlings produced at 35°C. Yield, seed physiological quality and chemical composition of seedlings are influenced by the crop and genotypes tested.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Yield, Physiological Quality and Chemical Composition of Phaseolus Vulgaris Seeds, Produced in the State of Rio Grande Do Sul, Brazil

Pedó¹,

Martins²,

Delias³

et al. 2020

RCR

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Agronomic traits and seed yield produced in the soybean-corn crop in succession cropping

Braccini

Stülp²,

Albrecht³

et al. 2010

Acta Sci. Agron.

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Competition experiments were installed at the COODETEC unit in Palotina, Paraná State,, with the objective of evaluating the influence of the cultivation of soybean in succession to a second crop season on different sowing dates on the agronomic traits and seed yield in both cultures. The experiment consisted of four field replicates, arranged in a completely randomized block design and carried out in two agricultural years (2003/2004 and 2004/2005). The individual blocks were comprised of three early-maturing soybean cultivars (CD 202, CD 215 and CD 216) sowed on five different dates (9/15, 9/30, 10/15, 10/30 and 11/15) and also three corn hybrids (CD 305, CD 306 and CD 308) that were sowed on different dates (1/30, 2/15, 3/1, 3/15 and 3/30). Data were submitted to a joint analysis, and the ! interaction decompositions were made when verified significance. Based on the results obtained, it can be concluded that early season second crop growing is a valid strategy for obtaining a good agronomical performance and better productivity in off-season corn sowing. The sticcession of early soybean/early corn in the off-season is a potentially viable alterhative for the west region of Paraná State, as long as the soybean sowing is done by the first half of October and the second crop season corn is sown in tbe first half of February. RESUMO. Desempenho agronómico e produtividade na sucessâo soja -milho safrinha.O objetivo dp presente trabalho foi avaliar a influencia do cultivo em sucessâo da soja com o milho safririha, em diferentes épocas de semeadura, no desempenho agronómico das plantas e na produtividade de soja e milho. Utilizou-se o delineamento em blocos casualizados, com quatiro repetiçoes. O experimento foi realizado em dois anos agricolas, 2003/2004 e 2004/2005, utilizando as cultivares de soja CD 202, CD 215 e CD 216, semeadas em 15/9, 30/9, 15/10, 30/10 e 15/11. Em sucessâo utilizou-se très hibridos de milho (CD 305, CD 306 e CD 308) semeados em 30/01, 15/2, 1/3, 15/3, 30/3. Os dados coletados foram submetidos à análise de variância conjunta realizando desdobramentos das Lnteraçôes, quando constatado significancia. Com base nos restiltados encontrados, constatou-se qtie a antecipaçâo da semeadura da safrinha é uma estrategia válida para obtençâo de bom desempenho agronómico e de produtividade em semeaduras extemporáneas de milho. A sucessâo soja-milho eni safrinha é uma alternativa viável para a regiáo oeste do Estado do Paraná, desde que a semeadura da soja seja realizada na primeira quinzena de outubro e a do milho safrinha na primeira quinzena de fevereiro.Palavras-chave: semeadura antecipada do milho, adversidade climática, cultivares, híbridos.

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Sementes de soja produzidas em épocas de safrinha na região oeste do Estado do Paraná

Cited by 2 publications

References 15 publications

Yield, Physiological Quality and Chemical Composition of Phaseolus Vulgaris Seeds, Produced in the State of Rio Grande Do Sul, Brazil

Yield, Physiological Quality and Chemical Composition of Phaseolus Vulgaris Seeds, Produced in the State of Rio Grande Do Sul, Brazil

Agronomic traits and seed yield produced in the soybean-corn crop in succession cropping

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