2009
DOI: 10.1590/s1413-70542009000600004
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Boro e nitrogênio na incidência de hastes ocas e no rendimento de brócolis

Abstract: RESUMOA incidência de hastes ocas em brócolis (Brassica oleracea L. var. italica Plenck) depende de vários fatores que afetam a absorção e o transporte de B, elemento responsável pelo aparecimento dessa desordem fisiológica. O trabalho avaliou os efeitos de quatro níveis de nitrogênio e dois níveis de boro e da interação entre eles na incidência de hastes ocas e na produção de brócolis. As doses de N (100, 150, 200 e 250 kg ha -1 ) foram divididas em quatro aplicações iguais aos 15, 30, 45 e 60 dias após o tra… Show more

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Cited by 8 publications
(8 citation statements)
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References 14 publications
(14 reference statements)
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“…Variation in nitrogen levels directly affects the physiological activity of plants and may cause an increase in the incidence of physiological disorders such as hollow stems (Hussain et al, 2012;Campagnol et al, 2009;Camargo et al, 2009). Although the productivity of this crop is highly correlated to nitrogen fertilization, a proper N level, allowing a greater productivity with minimum environmental issues, should be determined to prevent the leaching of elements to water sources and a high nitrate accumulation in plant tissues, for it may cause problems to consumers (Donagemma et al, 2008;Čekey et al, 2011;Jadoski et al, 2010).…”
Section: Introductionmentioning
confidence: 99%
“…Variation in nitrogen levels directly affects the physiological activity of plants and may cause an increase in the incidence of physiological disorders such as hollow stems (Hussain et al, 2012;Campagnol et al, 2009;Camargo et al, 2009). Although the productivity of this crop is highly correlated to nitrogen fertilization, a proper N level, allowing a greater productivity with minimum environmental issues, should be determined to prevent the leaching of elements to water sources and a high nitrate accumulation in plant tissues, for it may cause problems to consumers (Donagemma et al, 2008;Čekey et al, 2011;Jadoski et al, 2010).…”
Section: Introductionmentioning
confidence: 99%
“…Para obter melhor produtividade e qualidade de brócolis, vêm sendo realizadas pesquisas referentes às adubações, aos manejos, incidência de doenças (DINIZ, 2008;CAMPAGNOL et al, 2009;TREVISAN et al, 2003), entre outros, sem o conhecimento correto do planejamento experimental. Nesse sentido, o conhecimento da variabilidade da produção, numa área experimental, é importante para o planejamento adequado de experimentos.…”
Section: Introductionunclassified
“…Green Storm was the cultivar that present a higher occurrence of hollow stem (Table 3), showing its predisposition to this abnormality and its sensitivity to high temperatures. Campagnol et al (2009) reported that this physiological disorder decreases as the rates for application of boron and nitrogen are increased; they found that this disorder occurred in 44% of plants grown in areas not fertilized with boron. Hollow stems may occur due to the predisposition of the cultivar, and extreme environmental factors, such as high temperature, drought, low relative air humidity, and inappropriate cultural practices of spacing, irrigation, and fertilization (MELO, 2015).…”
Section: Dfbw Dsw Dlw Tdiw --------------------G Plant -1 -----------mentioning
confidence: 99%