Variações anatômicas de Laelia purpurata var. cárnea cultivada in vitro sob diferentes intensidades e qualidade spectral de luz

Júnior, Jessé Marques da Silva; Castro, Evaristo Mauro de; Rodrigues, Marcelo; Pasqual, Moacir; Bertolucci, Suzan Kelly Vilela

doi:10.1590/s0103-84782012000300015

Cited by 15 publications

(8 citation statements)

References 10 publications

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“…The morphophysiology of plants depends not only on the presence of light, but also on attenuation and light quality [21], as well as the availability of nutrients present in the soil that influence the vegetative and reproductive development process [22] [19]. In studies involving foliar morphological alterations in sugarcane cultivars, they pointed out that some varieties were more resistant to water stress because they presented higher dry matter contents [23].…”

Section: Resultsmentioning

confidence: 99%

Development of Pre-Broken Sugar Cane Submitted to Treatments with Fertilizer and Vegetable Regulators

Gazola¹,

Filho²,

Risso³

2018

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The objective of this work was to evaluate the development of pre-budded sugarcane seedlings from buds submitted to treatments with fertilizer and plant regulators. The experiment was conducted in a completely randomized design with six replicates. The treatments of the yolks were carried out in the concentration of 1% of volume with the following products: Witness-without treatment of the gems; Kinetin 0.009% + Gibberellic acid 0.005% + 4-Indole-3-butyric acid 0.005% (Stimulate ®); Seaweed Extract (Ascophyllum nodosum) and Potassium Hydroxide-3.5% K 2 O (ExpertGrow ®) and ethephon 72% (Ethrel ®) + pH Reducer (Kill ®). The percentage of shoot buds, number of tillers, number of leaves, leaf area, stem diameter, shoot dry mass, root and total were evaluated. The control, as well as Stimulate ® and Ethrel ® provided higher sprouting percentages. Ethrel ® was the product that promoted the highest number of tillers and leaves. The leaf area did not change due to the use of the products or not. The dry mass of both shoot, root and total leaves showed no significant weight changes among the evaluated treatments. It is concluded that the use of ExpertGrow ® is not recommended for treatment of pre-sprouted sugarcane seedlings because it provided fewer shoots at 28 days after planting of the yolk and that Ethrel ® is recommended because it provided a larger number of the buds evaluated.

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Section: Resultsmentioning

confidence: 99%

Development of Pre-Broken Sugar Cane Submitted to Treatments with Fertilizer and Vegetable Regulators

Gazola¹,

Filho²,

Risso³

2018

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“…O aumento da espessura do limbo é considerado estratégia de adaptação para melhorar a captação de energia luminosa e, por consequência, favorecer maior eficiência fotossintética (TAIZ & ZEIGER, 2004). SILVA JÚNIOR et al (2012) relataram maiores aumentos na espessura do limbo foliar em plantas de Laelia purpurata Lindl. sob cultivo com malha azul, enquanto que, para Ocimum selloi Benth, foi observado que o cultivo das plantas a pleno sol proporcionou maior espessura do limbo foliar (COSTA et al, 2010).…”

Section: Malhaunclassified

Cultivo de tamarindo sob malhas coloridas: plasticidade anatômica foliar

et al. 2015

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“…Para aumentar a produção de forragem é necessária a correção da acidez do solo e adubação adequada. Além disso, a variedade da cana-de-açúcar, umidade do solo e disponibilidade de nutrientes também podem influenciar no perfilhamento (siLvA JúnioR et al, 2012).…”

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Efeitos da fosfatagem nos atributos químicos do solo e produção de cana-de-açúcar para forragem

2017

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RESUMO: O fósforo (P) é considerado um elemento essencial para o cultivo da cana-de-açúcar, assumindo grande importância no enraizamento, no perfilhamento e na produção de forragem. Com o objetivo de avaliar os efeitos da fosfatagem em pré-plantio nos atributos químicos do solo e no desenvolvimento da cultura da cana-de-açúcar para produção de forragem foi realizado um experimento com a variedade RB 86 7515, junto à unidade produtora da Usina Santa Mercedes, Tupi Paulista, SP. O delineamento experimental foi em blocos ao acaso com 8 tratamentos e 4 repetições, totalizando 32 unidades experimentais, em esquema fatorial 2 x 4, duas fontes de fósforo (fosfato decantado e fosfato de monoamônio) e quatro doses de fósforo (0; 80; 120; 160 kg/ ha P 2 O 5 ). As fontes e doses testadas de fósforo (P) aumenta a disponibilidade de P no solo, sendo a dose de 120 kg/ha P 2 O 5 que apresenta maior produção de massa verde de forragem. A fonte fosfato monoamônico reduz o pH do solo e aumenta a disponibilidade dos micronutrientes como ferro, boro e zinco.Palavras-chave: fosfato decantado, fosfato de monoamônio, Saccharum spp. EFFECT OF PHOSPHATING ON SOIL CHEMICAL ATTRIBUTES AND CULTIVATION OF SUGARCANE FOR FORAGEABSTRACT: Phosphorus (P) is an essential element for the cultivation of sugarcane, which plays an important role in rooting, tillering and forage production. With the objective to evaluate the effects of pre-planting phosphating on soil chemical attributes and sugarcane growth for forage production, an experiment was conducted at the Santa Mercedes plant, Tupi Paulista, SP, using the RB 86 7515 variety. The experimental design consisted of random blocks with 8 treatments and 4 replicates, totaling 32 experimental units, in a 2 x 4 factorial scheme including two P sources (decanted phosphate and monoammonium phosphate) and four P doses (0, 80, 120, and 160 kg/ ha P 2 O 5 ). The P sources and doses tested increase the availability of P in soil, with the dose of 120 kg/ha P 2 O 5 providing the highest production of green forage mass. Monoammonium phosphate as P source reduces soil pH and increases the availability of micronutrients such as iron, boron and zinc.

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Variações anatômicas de Laelia purpurata var. cárnea cultivada in vitro sob diferentes intensidades e qualidade spectral de luz

Abstract: II Variações anatômicas de

Cited by 15 publications

References 10 publications

Development of Pre-Broken Sugar Cane Submitted to Treatments with Fertilizer and Vegetable Regulators

Development of Pre-Broken Sugar Cane Submitted to Treatments with Fertilizer and Vegetable Regulators

Cultivo de tamarindo sob malhas coloridas: plasticidade anatômica foliar

Efeitos da fosfatagem nos atributos químicos do solo e produção de cana-de-açúcar para forragem

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