Efeito de épocas de semeadura e estabilidade de híbridos de milho em plantios de safrinha no Noroeste do Paraná

Vilhegas, André C. Garcia; Filho, Pedro Soares Vidigal; Scapim, Carlos Alberto; Gonçalves‐Vidigal, Maria Celeste; Braccini, Alessandro de Lucca e; Sagrilo, Edvaldo

doi:10.1590/s0006-87052001000100006

Cited by 9 publications

(7 citation statements)

References 6 publications

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“…However, it can be observed that the variety that produced the most, i.e., EMCAPA 8131 (Table 3), did not show a suitable stability value. This fact was observed by Vilhegas et al (2001) working with corn genotypes and Daher et al (2003) working with Pennisetum purpureum Schum genotypes. According to Cargnelutti Filho et al (2007), cultivars indicated by the Plaisted and Peterson (1959) method are associated with greater stability apart from average grain yield and adaptability to favorable and unfavorable environments.…”

Section: Resultsmentioning

confidence: 71%

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Adaptability and stability of conilon coffee in areas of high altitude

Barbosa¹,

Rodrigues²,

Vieira³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. In view of the predicted models of global climate change and differences in prices and production costs, there is increased interest in Coffea canephora cultivation in areas of high altitude. However, this species is sensitive to low temperatures, where genotypes vary regarding adaptation/tolerance mechanisms, demonstrating genotype x environment interaction. The aim of this study was to evaluate the stability and adaptability of C. canephora varieties in high-altitude areas. The experiments were carried out in February 2004, in Bom Jesus do Itabapoana, Rio de Janeiro State, Brazil, at an altitude of 725 m. Four clonal varieties (EMCAPA 8111, EMCAPA 8121, EMCAPA 8131, and EMCAPA 8151) and five harvests (2006 to 2010) were used. The experimental design was randomized blocks with four treatments and six plots, with 12 plants in each plot and spaced 2.5 x 1.2 m. Adaptability and stability parameters were determined using methods based on nonparametric analysis and analysis of variance. The results showed that the EMCAPA 8131 had the best performance according to stability and adaptability parameters and may be promising for high-altitude regions.

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Section: Resultsmentioning

confidence: 71%

“…Vilhegas et al (2001) observed that the Lin and Binns (1988) and Kuang (1988) methods pointed to the same maize genotype, while Daher et al (2003) observed that the methods pointed to different genotypes of P. purpureum. This may be due to the number of genotypes, since the latter authors worked with a larger number of genotypes.…”

Section: Resultsmentioning

confidence: 98%

Adaptability and stability of conilon coffee in areas of high altitude

Barbosa¹,

Rodrigues²,

Vieira³

et al. 2014

Genet. Mol. Res.

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“…An example of this is that, from the three most stable cultivars by this methodology, only IAC 169-86 presented a good yield mean for tuberous root, which indicated that, in the methodology by Plaisted and Peterson (1959), there is no agreement between yield and stability. Disagreement between yield and stability was also observed by Monge (1981) when assessing bean cultivars, by Vendruscolo (1997) when studying popcorn genotypes, by Daros and Amaral Junior (2000) when assessing sweet potato accession, by Rimoldi (2000) when studying cassava cultivar stability and by Vilhegas et al (2001) when studying stability in corn hybrids. Table 5 shows the stability estimates by the method proposed by Kang (1988) for the cassava tuberous root trait in the experiments carried out in Maringá and Rolândia.…”

Section: Resultsmentioning

confidence: 82%

Estabilidade de produção de cultivares de mandioca (Manihot esculenta, Crantz) no Estado do Paraná

Rimoldi¹,

Filho²,

Vidigal³

et al. 2003

Acta Sci. Agron.

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ABSTRACT. The present study was carried out to quantify the genotype x environment interaction of nine cassava cultivars and to estimate the phenotypic stability parameter by Plaisted and Peterson (1959) and Kang (1988) methodologies, in the cities of Maringá and Rolândia, located in the state of Paraná, southern Brazil, during the agricultural years of 1995/96, 1996/97 and 1997/98. The treatments were in complete, randomized blocks, with four replications. The Plaisted and Peterson method showed the IAC 169-86, IAC 47-86 and Branca de Santa Catarina cultivars to be the most stable. The IAC 169-86 and IAC 47-86 cultivars presented the lower ranks total, and therefore were considered the most stable and productive by Kang method (1988). The IAC 169-86 cultivar was a stable and productive material, resistant to bacteriosis, with average susceptibility to overlengthening, being, thus, eligible for recommendation to cassava producers in northern and northwestern Paraná.

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“…A produtividade (kg ha -1 ) foi semelhante aos obtidos por Shioga, Oliveira e Gerage (2004) (4450 a 6950 k ha -1 ), avaliando o efeito do espaçamento entrelinhas e da adubação nitrogenada sobre a produtividade do milho em quatro municípios paranaenses durante três anos. Porém foram superiores aos obtidos por Vilhegas et al (2001), avaliando a estabilidade produtiva de híbridos de milho em diferentes épocas de plantio na segunda safra no Noroeste do Paraná, em que obtiveram médias de produtividade entre 1.445 e 3.235 kg ha -1 . Além disso, as produtividades obtidas neste estudo estão próximas a produtividade média nacional de milho safrinha que foi de 5.553 kg ha -1 na safra 2016/2017 (CONAB, 2017).…”

Section: Resultsunclassified

Densidade Populacional, Espaçamento E Adubação Nitrogenada Na Semeadura De Milho De Segunda Safra

et al. 2019

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A adequada distribuição das plantas e a adubação nitrogenada são práticas de manejo que afetam a produtividade do milho. Para o cultivo de milho segunda safra são necessárias informações quanto à resposta do arranjo das plantas à adubação nitrogenada. Sendo assim, o objetivo desse trabalho foi avaliar a interação entre densidade populacional, espaçamento entrelinhas e aplicação de nitrogênio (N) em semeadura na cultura do milho de segunda safra, cultivado em sistema de semeadura direta. O delineamento experimental empregado foi de blocos ao acaso, dispostos em parcelas subsubdivididas, com quatro repetições. Nas parcelas foram alocadas as densidades populacionais (60.000 e 75.000 plantas ha-1); nas subparcelas os três espaçamentos entrelinhas (0,40; 0,60 e 0,80 m) e nas subsubparcelas foram aplicadas quatro doses de N (20, 35, 50 e 65 kg ha-1) em semeadura. A adubação de cobertura foi realizada aplicando-se 100 kg ha-1 de N para todos os tratamentos na forma de ureia. Independentemente da dose de N, a densidade populacional de 60.000 plantas ha-1 e o espaçamento entrelinhas de 0,40 m proporcionaram maior produtividade de grãos de milho segunda safra. Maior número de grãos/espiga, número de fileiras/espiga, comprimento de espiga, massa de cem grãos e produtividade de grãos de milho segunda safra são verificados na dose de 65 kg ha-1 de N na semeadura.

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Efeito de épocas de semeadura e estabilidade de híbridos de milho em plantios de safrinha no Noroeste do Paraná

Cited by 9 publications

References 6 publications

Adaptability and stability of conilon coffee in areas of high altitude

Adaptability and stability of conilon coffee in areas of high altitude

Estabilidade de produção de cultivares de mandioca (Manihot esculenta, Crantz) no Estado do Paraná

Densidade Populacional, Espaçamento E Adubação Nitrogenada Na Semeadura De Milho De Segunda Safra

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