Cultivo do tomateiro em substratos orgânicos sob aplicação foliar de silicato de potássio em ambiente protegido

Emrich, Eduardo Bucsan; Souza, Rovilson José de; Lima, Antônio Anicete de; Figueiredo, Felipe Campos; Silva, Douglas Ramos Guelfi

doi:10.1590/s1413-70542011000100006

Cited by 9 publications

(8 citation statements)

References 6 publications

(3 reference statements)

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“…Silicon may stimulate the plants to concentrate chlorophyll in the leaves. This result has also been observed in tomato vines [20] and rice plants [18], possibly validating the results of the present study. This chlorophyll concentration occurs because silicon is linked to the maintenance of photosynthesis as well as to chlorophyll distribution preservation and protection from the structural and functional breakdown of the cell membranes [21].…”

Section: Resultssupporting

confidence: 93%

Response of Moderate Pest Resistant and Susceptible Cultivar of Sugarcane to Silicon Application

Vilela¹,

Moraes²,

Coelho³

et al. 2014

AJPS

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In this study, the effects of a silicon (Si) application on the biomass, chlorophyll level and silicon level of sugarcane moderate pest resistance (RB72454) and susceptible (SP801842) cultivars were tested. Investigations were also carried out to assess the effect of silicon on Diatraea saccharalis infestation. The experiments were conducted in a greenhouse using the treatments consisting moderate pest resistant and susceptible culivar, with or without silicon application. The silicon was applied to the soil around the plants. The experiment was laid in complete randomized design with 4 treatments and 10 replicates. The data were subjected to an analysis of variance, and the averages were compared using the Tukey test (p ≤ 0.05). Significant changes were observed in the fresh and dry masses of the aerial portions and the root system, as well as in the plant chlorophyll and silicon levels. The silicon content increased in the susceptible variety which was significantly equal for moderate resistance variety. Chlorophyll content increased in silicon treated cultivars. Sixty days after the last application, 10 adult D. saccharalis moths were released onto each pot. However, due to the low infestation, the effects of silicon on the insect incidence could not be determined. One can conclude that silicon is beneficial for the growth of the aerial portions of sugarcane and causes a significant increase in chlorophyll levels.

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Section: Resultssupporting

confidence: 93%

Response of Moderate Pest Resistant and Susceptible Cultivar of Sugarcane to Silicon Application

Vilela¹,

Moraes²,

Coelho³

et al. 2014

AJPS

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“…19 n°. 1 Curitiba Jan/Mar 2018 p. 132-141 Emrich et al (2011), uma das causas para o aumento do teor de clorofila b é o crescimento da proporção do complexo coletor clorofila a/b-proteína, em relação ao complexo P-700-clorofila-a-proteína. Outro fator citado por Mebrahtu & Havolver (1991) está ligado ao maior desenvolvimento de "grana" em cloroplastos, local onde se localiza o complexo a/b-proteína.…”

Section: Resultsunclassified

Influência De Diferentes Fontes De Matéria Orgânica Em Componentes Fisiológicos De Folhas Da Espécie Schinus Terebinthifolius Raddi. (Anacardiaceae)

Sales

Santos

et al. 2018

RSA

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O objetivo deste trabalho foi avaliar o efeito das diferentes fontes de matéria orgânica incorporadas ao substrato sobre os índices fisiológicos e metabólitos secundários. O experimento foi conduzido no IFES Campus Itapina em um delineamento de blocos casualizados, e os tratamentos consistiram de cinco fontes alternativas de matéria orgânica na proporção de 20% misturadas ao substrato de terra pura. Foram avaliados os teores de clorofilas a, b, total, carotenoides e suas relações através da extração de clorofila, a medida indireta de nitrogênio e clorofila pelo aparelho SPAD, além dos índices de fluorescências obtidos pelo aparelho Multiplex®, no qual mede os índices de flavonóides (FLAV), antocianina (ANT-RG e ANT-RB), clorofila total (SFR-G e SFR -R) e balanço de nitrogênio (NBI-G e NBI-R). Houve aumento nos teores de NBI-G e NBI-R e um decréscimo no FLAV, no substrato com resíduo de indústria de café. Os substratos que usaram como fonte alternativa o lodo de curtume apresentaram maiores valores de flavonóides, sendo inversamente proporcionais ao balanço de nitrogênio. Os índices determinados com o medidor SPAD correlacionaram-se positivamente com os teores de clorofila a, total e carotenóides, entretanto os índices obtidos pelo aparelho Multiplex® só foram significativos quando correlacionados com os valores SFR_R da planta inteira e SFR_G da parte adaxial.

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“…Chlorophyll "a" and "b" is present in abundance in green plants (EMRICH et al, 2011). These pigments exert dominant control over the amount of solar radiation absorbed by plants and their concentration in the leaves have close relationship with the photosynthetic rates and the primary productivity of crops (BLACKBURN, 2006).…”

Section: Introductionmentioning

confidence: 99%

Characterization of processing tomato lines as the physiological and production characteristics

Peixoto¹,

Campos²,

Moraes³

et al. 2017

Biosci. J.

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ABSTRACT:The tomato crop has social, food, and economic importance both in Brazil and internationally for generating high employment opportunities in the productive sector and offering high nutritional value of the fruits. Given the importance of this tomato culture, there is a constant search for improved varieties that meet the needs of producers in the processing industry. The objective of this study was to characterize strains of the industrial tomato in the absorption of macronutrients and micronutrients, in level of chlorophyll content in leaves, in productivity, and in uniformity of maturation fruits. The experiment was conducted in 2014 in the experimental area of the Federal University of Goiás in Goiânia. The design was a randomized block with 25 treatments (22 lines and three commercial hybrids) and four replications. We evaluated the chlorophyll content in leaves, macronutrient content, foliar macro and micronutrient content, fruit yield, and uniformity of maturation. The lineages CVR 1, CVR 3, CVR4, CVR 5, CVR21, and CVR 22 have high productivity, as well as being uniform in maturation. The lineages CVR 2, CVR 5, CVR 7, CVR 8, CVR 9, CVR 10, CVR 11, CVR 12, CVR 13, CVR 14, CVR 15, CVR 16, CVR 17, CVR 18, CVR 19 and CVR 20 are uniform in maturation. The lines have different potentials regarding the absorption of P, K, Ca, Mg and Zn. There is a positive correlation between the chlorophyll content and the amount of nitrogen present in the leaves.

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Cultivo do tomateiro em substratos orgânicos sob aplicação foliar de silicato de potássio em ambiente protegido

Cited by 9 publications

References 6 publications

Response of Moderate Pest Resistant and Susceptible Cultivar of Sugarcane to Silicon Application

Response of Moderate Pest Resistant and Susceptible Cultivar of Sugarcane to Silicon Application

Influência De Diferentes Fontes De Matéria Orgânica Em Componentes Fisiológicos De Folhas Da Espécie Schinus Terebinthifolius Raddi. (Anacardiaceae)

Characterization of processing tomato lines as the physiological and production characteristics

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