Produtividade da Heliconia psittacorum x Heliconia pathocircinada cv. Golden Torch sob diferentes fontes de adubação orgânica

“…Studies have shown the effects of inorganic (CLEMENS and MORTON, 1999;SUSHMA et al, 2012;BECKMANN-CAVALCANTE et al, 2015;2016;NAIK, 2015) and/or organic fertilizers (ALBUQUERQUE et al, 2010;MACHADO NETO et al, 2011;CARVALHO et al, 2012;FARIAS et al, 2013) on different heliconia species, however, more studies are needed to define the timing of fertilizer applications. …”

Section: Resultsmentioning

confidence: 99%

“…Heliconia require a large amount of nutrient and the response to fertilization are often found (CLEMENS and MORTON, 1999;ALBUQUERQUE et al, 2010;MACHADO NETO et al, 2011;CARVALHO et al, 2012;SUSHMA et al, 2012;FARIAS et al, 2013;BECKMANN-CAVALCANTE et al, 2015;2016;NAIK, 2015). Besides the inflorescence production, fertilization also influences the heliconia flower stem quality (CASTRO et al, 2007;MACHADO NETO et al, 2011;AMARAL et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Growth, nutrient accumulation and export by heliconia ‘Red Opal’

Taniguchi

Castro

Silva

et al. 2016

View full text Add to dashboard Cite

Synchronizing the timing of fertilizer applications with plant nutrient demand increases the nutritional efficiency and decrease the cost of production. The objective of this study was to determine the growth and the nutrient uptake and export by heliconia 'Red Opal'. The experiment was carried out in a shade house and Heliconia psittacorum 'Red Opal' rhizomes were planted in soil classified as Arenic Kandinstults. The experimental design was completely randomized with nine plant sampling (zero; 30; 90; 150; 210; 270; 330; 390 and 450 days after planting) and five replicates. Leaves, sheathing leaf bases, flower stem, rhizomes and roots were collected every sampling and dry mass and nutrients accumulation were determined. Heliconia plants showed slow initial development but from the 210 days of planting, which corresponds with the beginning of the flower stem harvest there is a marked increase in dry mass accumulation. Nutrient accumulation followed the decreasing order: K > N = Ca > P = Mg > S > Fe = Mn > Zn > Cu = B. Potassium and calcium were the most exported macronutrients by heliconia flower stem and among the micronutrients, manganese was the most exported. Keywords: Heliconia psittacorum 'Red Opal', nutrient cycling, tropical floriculture. RESUMOCrescimento, acúmulo e exportação de nutrientes pela helicônia 'Red Opal' A sincronização da aplicação dos fertilizantes com a época de demanda de nutrientes aumenta a eficiência nutricional da planta e diminui os custos de produção. Objetivou-se com o trabalho determinar o desenvolvimento e a marcha de absorção de nutrientes pela helicônia 'Red Opal'. O experimento foi conduzido em telado e rizomas de Heliconia psittacorum 'Red Opal' foram plantados em Argissolo Vermelho-Amarelo. O delineamento experimental foi o inteiramente casualizado com nove épocas de amostragem (zero; 30; 90; 150; 210; 270; 330; 390 e 450 dias após o plantio) e cinco repetições. Folhas, bainhas, hastes, rizomas e raízes foram coletadas a cada época de amostragem e a massa seca e o acúmulo de nutrientes foram determinados. As plantas de helicônia apresentaram desenvolvimento lento, mas a partir dos 210 dias do plantio, época que corresponde ao início da colheita das hastes, houve aumento acentuado no acúmulo de massa seca da planta. O acúmulo de nutrientes seguiu a ordem decrescente: K > N = Ca > P = Mg > S > Fe = Mn > Zn > Cu = B. O potássio e o cálcio foram os macronutrientes mais exportados pelas hastes de helicônia e dentre os micronutrientes, o manganês foi o mais exportado. Palavras-chave: Heliconia psittacorum 'Red Opal', ciclagem de nutrientes, floricultura tropical.

show abstract

“…bras., Brasília, v.36, n.2, April -June 2018 T he cultivation of ornamental plants has been constantly expanding and standing out in the national agribusiness, especially in the states of the Brazilian Northeastern and Northern regions (Farias et al, 2013). Besides aggregating high potential for future expansion, it also represents one of the main activities generating employment and income for micro and small producers across the country (Junqueira & Peetz, 2014).…”

Section: Researchmentioning

confidence: 99%

Physiological development of zygotic embryos of heliconias propagated in vitro and conventionally

et al. 2018

View full text Add to dashboard Cite

The aim of this study is to compare physiological development of Heliconia bihai cv. Lobster Claw Two plants derived from in vitro culture of zygotic embryos and conventional propagation. Heliconias obtained from rhizomes and from in vitro multiplication were evaluated every 30 days during ten months under greenhouse conditions. The experimental design was completely randomized, with ten repetitions, and the 2x10 factorial arrangement consisted of two plant multiplication methods and ten evaluations performed at different times. The analyzed biometric parameters were plant height, number of leaves, number of tillers, leaf area, and color intensity in the bracts. Plants derived from in vitro culture showed significant differences in the development of the evaluated physiological parameters in comparison to plants derived from rhizomes, and they also showed early flowering. Although the in vitro cultured plants were derived from zygotic embryos, no morphological changes were found in the vegetative and reproductive parts (inflorescence) of the plants or in the colorimetry. It shows that the in vitro cultures of zygotic embryos may be used as a technique to produce seedlings on a large-scale, thus allowing the floriculture sector to grow in the region and all over the country.

show abstract

Produtividade da Heliconia psittacorum x Heliconia pathocircinada cv. Golden Torch sob diferentes fontes de adubação orgânica

Cited by 19 publications

References 10 publications

Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Growth, nutrient accumulation and export by heliconia ‘Red Opal’

Physiological development of zygotic embryos of heliconias propagated in vitro and conventionally

Contact Info

Product

Resources

About