2011
DOI: 10.1590/s0100-29452011005000058
|View full text |Cite
|
Sign up to set email alerts
|

Teores foliares de nutrientes, índice relativo de clorofila e teores de nitrato e de potássio na seiva do pecíolo na videira 'Niagara Rosada'

Abstract: RESUMO-Realizou-se um levantamento nutricional em 93 vinhedos nas regiões vitícolas de Jundiaí, São Miguel Arcanjo e Jales, no Estado de São Paulo, tendo por objetivo comparar os teores de nutrientes em amostras foliares, o teor de nitrato e de potássio na seiva do pecíolo e o índice relativo de clorofila (IRC) da videira 'Niagara Rosada'. Em 20 plantas selecionadas de cada vinhedo, amostraram-se folha inteira, limbo e pecíolo no pleno florescimento da videira. Posteriormente, realizou-se a medição do IRC no l… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

1
1
0
4

Year Published

2014
2014
2020
2020

Publication Types

Select...
3
2
1

Relationship

0
6

Authors

Journals

citations
Cited by 9 publications
(6 citation statements)
references
References 12 publications
1
1
0
4
Order By: Relevance
“…The chlorophyll content increased with increasing fertilizer rates, probably due to the amount of nitrogen applied to the soil. Tecchio et al (2011) found similar results in the 'Niágara Rosada' cultivar, with significant positive correlations between leaf nitrogen content and chlorophyll content in the leaf blades. Costa et al (2012) also observed similar results, when evaluating maize leaves, with a linear increase in the chlorophyll content with increasing nitrogen fertilizer rates up to 200 kg ha -1 .…”
Section: Resultssupporting
confidence: 70%
“…The chlorophyll content increased with increasing fertilizer rates, probably due to the amount of nitrogen applied to the soil. Tecchio et al (2011) found similar results in the 'Niágara Rosada' cultivar, with significant positive correlations between leaf nitrogen content and chlorophyll content in the leaf blades. Costa et al (2012) also observed similar results, when evaluating maize leaves, with a linear increase in the chlorophyll content with increasing nitrogen fertilizer rates up to 200 kg ha -1 .…”
Section: Resultssupporting
confidence: 70%
“…This demand tends to be greater between the phases of budding and flowering, with a gradual increase in the supply of N from the soil during flowering, fruiting, and the first stage of berry growth; this supply may be even greater after the onset of maturation (Keller, 2015). The effect of nitrogen fertilization on chlorophyll content and the positive correlation between the relative chlorophyll index and leaf N content in grapevine cultivars was observed by Tecchio et al (2011) and Taskos et al (2015). In addition, effects on the relative index of leaf chlorophyll in table grape cultivars in response to the variation in fertilizer application rate, including sources of N, P2O5, and K2O, have been shown by Andrade et al (2017).…”
Section: Resultsmentioning
confidence: 84%
“…Em outro trabalho realizado em 93 vinhedos de três regiões vitícolas do Estado de São Paulo (Jundiaí, São Miguel Arcanjo e Jales), Tecchio et al (2011) compararam os teores de nutrientes em amostras foliares e o teor de nitrato e de potássio na seiva do pecíolo da videira 'Niagara Rosada', observando que os teores desses nutrientes variam entre as regiões vitícolas. As concentrações de nitrato e de potássio na seiva do pecíolo e os teores de potássio nas folhas foram menores em Saõ Miguel Arcanjo, possivelmente pela interferência do cálcio, pois naquela região os solos apresentaram teores deste nutriente duas vezes maiores que nas demais, embora os autores atribuam esta diferença aos porta-enxertos utilizados em cada região do estudo.…”
Section: Introductionunclassified