Attalea Phalerata Research Articles

Uncovering the Potential for the Sustainable Commercialization of Non-Timber Forest Products: Palm Fruits in Pando, Bolivia

Palm fruits are important non-timber forest products for rural people's livelihoods in the Amazon region, as many are nutritious foods and have the potential to generate income. However, in Pando, Bolivia, their commercialization is in most cases still underdeveloped. This study aimed to assess the potential of four palm fruits for sustainable commercialization and to identify their related promoting and hindering conditions. The palm fruits studied were açaí (Euterpe precatoria Mart), majo (Oenocarpus bataua Mart), motacu (Attalea phalerata Mart. ex Spreng) and palma real (Mauritia flexuosa L.f.). We gathered data from 14 key informants using semi-structured online interviews, 10 community members using structured interviews, and literature. We analyzed the data with qualitative content analysis and a multi-criteria decision-making method. Açaí has the highest potential due to its high abundance, demand, and specialized institutional support, among others. Majo, with a medium potential, benefited from its similarities with açaí regarding harvesting and processing, but still has technical processing deficiencies. Palma real and motacu had low potential because of low demand and lack of knowledge regarding harvesting and processing. This study demonstrates the importance of considering multidisciplinary factors when assessing sustainable commercialization potentials.

Cytotoxicity, anti-inflammatory effect, and acute oral toxicity of a novel Attalea phalerata kernel oil-loaded nanocapsules

The kernel oil of the Attalea phalerata Mart. Ex Spreng (Acurí) is traditionally used in several Latin American countries to treat respiratory problems, inflammation, and fever. However, it cannot be found on the literature any attend to use this oil in pharmaceutical formulation. In this paper, it was developed Acurí oil-loaded nanocapsules, and it was evaluated the cytotoxicity against cancer cells, the antinflammatory activity and the oral acute toxicity in rats. Acurí oil contains lauric acid as the predominant saturated fatty acid (433.26 mg/g) and oleic acid as the main unsaturated fatty acid (180.06 mg/g). The Acurí oil-loaded nanocapsules showed a size of 237 nm, a polydispersity index of 0.260, and a high ζ-potential of −78.75 mV. It was obtained an encapsulation efficiency of 88.77%, and the nanocapsules remain stable on the shelf for 180 days. The nanocapsules showed a rapid release profile (98.25% in 40 minutes). Nanocapsules at a dose of 10 mg/kg exhibit an anti-inflammatory effect similar to indomethacin at the same dose. The nanocapsules showed excellent antiproliferative effect and selectivity index against prostate tumor cells (IC50 2.09 µg/mL, SI=119.61) and kidney tumor cells (IC50 3.03 µg/mL, SI=82.50). Both Acurí oil and Acurí oil-loaded nanocapsules are nontoxic at a dose of 2000 mg/kg. Additionally, they reduce serum triglyceride and total cholesterol levels in rat and could find application in nutraceutical formulations. The Acurí oil-loaded nanocapsules emerge as a promising candidate for new antitumor therapies.

Effect of climate and flooding on the phenology of Attalea phalerata (Arecaceae) in a white‐water floodplain forest of the Amazon River

AbstractLittle is known about the effect of the polymodal tide of the Amazon estuary on the phenology of palms. We evaluated the effect of climate/flood and biotic factors on the phenology of 80 Attalea phalerata palms over 1‐year period. Bract emission and young leaves percentage were negatively correlated to accumulated rainfall. Inflorescence and leaf production occurred mainly in the dry season. Immature fruit was positively correlated with rainfall, showing that fruit development occurs during the rainy season. The production of flowers, unripe fruit, and young leaves were positively correlated to flooding. The production of infructescence, per palm, varied from 0 to 4 and 18% of the variance was explained by variables of stem diameter, number of new leaves, altitude, and flood amplitude. The number of infructescence increased for large palms and decreased for individuals subjected to high amplitudes of flooding. These findings reveal that phenological patterns of A. phalerata are driven by seasonal variation in rainfall and flooding. Furthermore, infructescence production can be predicted by plant size and this production is sensitive to variations in flood amplitude. Alteration in rainfall and flooding due to climate change may have a negative impact on fruit production if extreme events increase in frequency.

The monodominance of Acuri in Pantanal formations: allelochemical effects of its leaves and the presence of Acurizais.

The presence of monodominant vegetative formations almost exclusively composed of Acuri palm trees (Attalea phalerata) stands out in some regions of the Pantanal Sul-Mato-Grossense. These formations are generally associated with anthropic, edaphic and/or hydrological factors. However, little is known about the effect of allelopathy on the formation and maintenance of these areas. Herein, we investigated the chemical composition of A. phalerata aqueous leaf extract and the potential allelopathic effects on germination and growth of target L. sativa, L. esculentum and S. obtusifolia species. Thus, extracts at concentrations of 0, 2.5, 5, 10, 15, and 20% were used for germination and growth bioassays with a completely randomised design in a germination chamber and greenhouse. The results showed that the A. phalerata extracts negatively affected the germination speed index and mean germination time of the target species and positively affected seedling length under controlled conditions and were also stimulated in the greenhouse. Thus, the formation of Acurizals can be related to the presence of secondary metabolites in the leaves, in addition to other environmental factors.

Seed predation by macaws favors fruits with less seeds and thicker endocarps in the palm Attalea phalerata

When foraging on a specific range of fruits or seeds, animals can represent a natural selection force, affecting plant population realized fecundity. Most studies have focused on characteristics of dispersed seeds, but the higher predation of seeds of specific size or shape is also an important force that influences the populations’ realized fecundity and can help to understand patterns of plants genetic variability. In the Brazilian Pantanal, we investigated the predation of Acuri (Attalea phalerata) palm fruits by macaws, whose seeds go intact through tapirs digestive tract and then are deposited on latrines, where they are often consumed by seed predators. We found 251 fruits, containing between 1 and 5 seeds per fruit; 170 were intact and 81 had been partially damaged by macaws, mostly those containing 3 or 4 seeds per fruit and with thin endocarps. We argue that the higher consumption of fruits with these traits reflects a trade-off in the energy spent by macaws to open the fruits and the energy provided by them. Higher predation on 3-4 seeded fruits favors the selection of 1-2 seeded fruits, revealing a selection force opposed to the one exerted by bruchids and small rodents, which favors multi-seeded palm fruits.

Lack of protected areas and future habitat loss threaten the Hyacinth Macaw (Anodorhynchus hyacinthinus) and its main food and nesting resources

Habitat loss is a major reason for population declines and thus increases extinction risk, particularly for endemic or specialist species. Protected areas are an important biodiversity conservation strategy in the face of native vegetation conversion, but local and regional factors such as anthropogenic pressure can jeopardize their effectiveness. The Pantanal biome is one of the largest inland wetlands in the world. Currently, only 11% of the Pantanal is protected, 7% with full protection and 4% under sustainable use. However, 14% of the natural vegetation of the biome was lost between 2002 and 2014, negatively affecting its biodiversity. Here, we analyse how the availability of protected areas and habitat loss affects the conservation of the Hyacinth Macaw Anodorhynchus hyacinthinus, as well as the Acuri Palm Attalea phalerata and the Manduvi Tree Sterculia apetala, its two main resources for food and nesting, respectively. We modelled potential distributions to assess the spatio‐temporal patterns of habitat loss due to the conversion of native vegetation and to evaluate to what degree currently protected areas contribute to the conservation of these three species in the Pantanal. We found that, on average, 11.8% of the suitable habitat had been converted and that 10.6% of habitat predicted as suitable is currently protected. In addition, our results indicated important areas for the three species, which are of high priority for conservation and restoration. We also identified priorities for protection and restoration to maintain native vegetation, such as the creation of corridors. We believe that the high conversion rate and the low protection of suitable areas are related to the fact that these species are associated with areas that are rarely or never flooded. In the Pantanal, these areas are more prone to the conversion of native vegetation and are poorly protected given their higher economic value compared with areas with a high frequency of flooding. These facts, and the inadequate management of these areas, such as inappropriate fire regimens, threaten the persistence of these iconic species in the Pantanal.

Do fire and flood interact to determine forest islet structure and diversity in a Neotropical wetland?

Flood and fire act as ecological filters which can interact to shape forest structure and species composition. Our objective was to investigate how the interaction between fire and flood influences richness, abundance, basal area and species composition of the tree community and the monodominant belts of Attalea phalerata Mart. in forest islets of the Pantanal wetland. We used satellite images to find 12 forest islets without fire events from 1998 to 2014, and 12 forest islets burned only once in the same period in a fire event in 2009. In these forest islets, we set up a transect with 10 to 14 contiguous 5 × 10 m plots and sampled all trees with a diameter at breast height of ≥ 4.7 cm. We also measured the watermark height. Flooding influenced species richness and abundance, increased toward wetter areas of the forest islet flood gradient. In contrast, the interaction between fire and flood inverted that trend, with richness and abundance increasing in flood-free areas. Total basal area increases in the more flooded areas of the gradient. The fire or the interaction between fire and flooding did not influence the basal area. The relative abundance of A. phalerata increased with flood level and even more under the fire-flood interaction. We conclude that the interaction between fire and flood influences forest islet structure and species composition; moreover, it favors A. phalerata monodominance.

Methyl acetate, a highly volatile floral semiochemical mediating specialized plant-beetle interactions.

Olfactory signaling is key to the reproductive biology of entomophilous palms. Both pollinating and specialized herbivorous insects are attracted to fragrance-emitting palm inflorescences that function as reliable food sources, as well as mating and oviposition sites. In the present study, we characterized the floral scent chemistry of the acuri palm (Attalea phalerata), assessing its role in the attraction of flower-visiting insects associated with this species over its natural distribution range. We sampled insects from staminate inflorescences of A. phalerata (n = 6) at four different sites in the Brazilian Atlantic Forest and Cerrado, and Colombian Amazon basin. Dynamic headspace scent samples of both pistillate and staminate inflorescences of A. phalerata (n = 3♀, 3♂) were collected and analyzed by gas chromatography-mass spectrometry. Methyl acetate, a rare floral scent compound, was identified as the almost exclusive constituent (> 99.8% relative percentage) in all the samples. Flight-interception traps baited with methyl acetate, installed in one of the sites in the Brazilian Cerrado, were attractive to beetles associated with inflorescences of A. phalerata across all four sampling sites (9 spp. in total), including the putative main pollinators (Mystrops spp., Nitidulidae; Andranthobius spp., Curculionidae) and various palm borers (Paratenthras martinsi, Cerambycidae; Parisoschoenus sp.1 and Belopoeus sp.1; Curculionidae). Methyl acetate is highly volatile and we hypothesize its efficacy relies on profuse emission by the inflorescences of A. phalerata, as specialized pollinating insects respond to high concentrations of the attractant, perhaps before odor plumes rapidly disperse. Such a strategy could prove particularly effective in dense populations of A. phalerata.

Myxomycetes in the Pantanal biome: first records and a new associate, Attalea phalerata

The occurrence of myxomycetes is reported for the first time in the Brazilian Pantanal and on Attalea phalerata (acuri palm). The records are based on sporocarp collections made in the municipality of Poconé, State of Mato Grosso, in an area characterized by seasonal hydrological fluctuations and naturally open areas. We report six species: Arcyria obvelata, Perichaena depressa, and P. vermicularis (Trichiaceae); and Physarum album, P. compressum, and P. polycephalum (Physaraceae), all of which represent new records for the Pantanal and a new substrate, A. phalerata.

Bioecological aspects of triatomines and marsupials as wildTrypanosoma cruzireservoirs in urban, peri‐urban and rural areas in the Western Brazilian Amazon

In the Amazon region, Trypanosoma cruzi transmission cycles involve a great diversity of Triatominae vectors and mammal reservoirs. Some Rhodnius spp. mainly inhabit palm trees that act as microhabitats for hosts and vectors. The current study aimed to describe aspects of the bio-ecology of the vectors and reservoirs of T. cruzi in relation to human populations resident near areas with large quantities of palm trees, in rural, peri-urban and urban collection environments, located in the Western Brazilian Amazon. Rhodnius pictipes and Didelphis marsupialis were respectively the most predominant vector and reservoir, with rates of 71% for R. pictipes and 96.5% for D. marsupialis. The vast majority of T. cruzi isolates clustered with TcI. The most prevalent haplotype was TcI COII1 (69.7%). Mauritia flexuosa and Attalea phalerata were the main ecological indicators of infestation by triatomines. Birds were the most common food source (27,71%). T. cruzi isolated from R. robustus has the haplotype HUM-13, previously detected in a chronic Chagas patient living in the same area. Our results demonstrate the relevance of this study, with the occurrence of elevated infection rates in animals, and suggest the importance of the Amazon zones where there is a risk of infection in humans.

The Hyphessobrycon eques (Steindachner, 1882) coloration influenced by the addition of Attalea Phalerata Mart. ex spreng crude oil

Bacuri pulp oil (Attalea phalerata Mart. Ex Spreng) has medicinal properties due to a high concentration of carotenoids and palmitoleic acid from the Omega-7 group that can benefit the health and well-being of fish. The objective was to evaluate the benefits of including bacuri oil in the development and coloring of Mato Grosso (Hyphessobrycon eques Steindachner, 1882). 51 specimens of coarse forest were used, distributed in four units of 10L in individual recirculation system and thermostated water at 28 ° C. During the 60-day trial the fish were fed with commercial diets (DC) and commercial diet plus essential oil of bacuri (5g.kg-1) (DB). At the end of the experimental period, survival, growth, color and thermogenicity were evaluated. The data were analyzed using the Duncan test (P> 0.05). The use of bacuri oil provided a low growth rate, however it is noteworthy that it was longer in relation to the DC group. Consumption was not affected by the addition of bacuri oil, having no effect on the palatability of the diet. However, the trial survival was 73% for DB and 88% for DC. There was no change in the color and thermogenicity of the fish with the inclusion of bacuri oil. The condition factor of DB fish was superior to DC, which demonstrates the ability to promote fish welfare. It was concluded that in the dose used, bacuri essential oil is not recommended for thick bush as a supplement to improve color.

Protein supplement obtained from almonds of bacuri fruit (Attalea phalerata Mart. Ex Spreng.): elaboration, nutritional characterization and sensory acceptability

Bacuri (Attalea phalerata Mart. Ex Spreng.) is a fruit belonging to Palmae family, found in Mato Grosso do Sul - Brazil with great nutritional potential. The objective of the present study was to perform processing, elaboration, nutritional analysis and sensorial acceptability test of protein supplement formulations with bacuri almonds aiming its use by vegetarian public and sportsmen. Bacuri almonds were processed to lyophilized flour of the protein isolate, and then mixed with other ingredients to produce two supplement formulations: F1 containing 70% bacuri lyophilized almond flour, and F2 containing 35% bacuri lyophilized almond flour and 35% commercial supplement. Nutritional composition analysis, amino acid determination and sensory analysis were performed. Both supplements presented high protein content. F1 and F2 were significant different for energy, moisture, ashes, proteins and carbohydrates content. Amino acid profile was satisfactory for methionine, cysteine, phenylalanine and tyrosine for both. Sensory analysis showed acceptability indexes above the minimum limit of 70%, which is considered accepted. Thus, bacuri almond is an alternative ingredient in plant food supplements. However, its isolated use (F1) still needs further testing for sensory acceptability indices improvement.

Synopsis of the tribe Cocoseae Mart. (Arecoideae, Arecaceae) in the state of Maranhão, Brazil

Abstract: This study presents a synopsis of the tribe Cocoseae (Arecaceae) for the Maranhão state, which was based on the descriptive analysis of voucher specimens of national and international herbaria, from loans, collection visits, digital platforms, and materials collected in expeditions. Twenty-five species belonging to seven genera were identified. The genus Bactris Jacq. ex Scop. was the most representative with seven species, followed by Attalea Kunth. (five spp.), Syagrus Mart. (five spp.), Astrocaryum G. Mey. (three spp.), Desmoncus Mart. (three spp.), Acrocomia Mart (one spp.), and Allagoptera Nees (one sp.). Four new records of occurrence were found for Maranhão: Allagoptera leucocalyx (Drude) Kuntze, Attalea barreirensis Glassman, Attalea phalerata Mart. ex Spreng. and Syagrus glazioviana (Dammer) Becc. This paper presents a taxonomic key for the species, as well as geographic distribution maps and photographic plates with the distinguishing characteristics for each taxon. Besides the taxonomic characteristics, common names, ecological data, and conservation status are included.

Decomposed Attalea phalerata Mart. ex Spreng wood trunk as an alternative of substrate for basilicum transplant production

Attalea phalerata Mart. ex Spreng is a very abundant palm tree in the states of Mato Grosso and Mato Grosso do Sul, Brazil, and it is very common to find decomposed woody trunks spread in the vegetation. This renewable matter could be used as an alternative substrate for transplant production of several horticultural species, such as Ocimum basilicum L. The aim of this study was to evaluate the use of decomposed A. phalerata wood trunk as substrate in the O. basilicum transplant production. The experiments were carried out in the greenhouse of Embrapa Pantanal, Corumba, Brazil, between August and October of 2011. For Experiment 1 and 2, the treatments were randomly designed with three replicates each. Substrates containing pure decomposed A. phalerata wood trunk, pure commercial horticultural substrate, and mixtures of soil + organic compost, decomposed A. phalerata wood trunk and sand, and decomposed A. phalerata wood trunk + organic compost, were tested. Emergence percentage at 6, 13, and 22 days after sowing, emergence speed index, and shoot fresh mass tests were performed. The Tukey-Kramer test at 5% of probability was used for mean comparisons. According to the results, for Experiment 1, there were no significant differences among the means of the emergence percentage, emergence speed index, and shoot fresh mass. For emergence, the means of decomposed wood trunk, commercial substrate, and mixture of soil, organic compost, and sand, were 29.16, 21.36, and 23.96, respectively. For emergence speed index, the mean values followed the same pattern. In the shoot fresh mass, the means were 0.11 g for the decomposed woody trunk, 0.17 g for the commercial substrate, and 0.22 g for the mixture. For Experiment 2, pure commercial horticultural substrate and pure decomposed A. phalerata wood trunk promoted better results for all parameters. By the results, the conclusion was that decomposed A. phalerata wood trunk could be used as substrate to produce O. basilicum transplants.

What are the species of phorophytes of Vanilla palmarum (Orchidaceae) in Brazil? An assessment of emblematic specificity with palm tree species

Abstract Vanilla palmarum is an obligately epiphytic orchid distributed widely throughout South America with emblematic specificity for species of palms. This epiphyte-phorophyte association was examined through the analysis of specimens available via the database of Centro de Referência em Informação Ambiental and from Brazilian herbaria. We recognized nine species as hosts of V. palmarum in Brazil: Acrocomia aculeata, Attalea phalerata, Attalea speciosa, Elaeis guineensis, Mauritia flexuosa, Syagrus cearensis, S. coronata, S. schizophylla, and S. vagans. The most important phorophytes of V. palmarum were found to be A. speciosa (Cerrado), A. phalerata (Pantanal), M. flexuosa (Amazon Forest) and S. coronata (Caatinga). Future management actions must consider the association between V. palmarum and its phorophyte palm species in order to ensure the protection of this ecological interaction.

Characterization and optimization of oil microcapsules from Attalea phalerata Mart. for the preservation of bioactive compounds

This study aimed microencapsulating Attalea phalerata Mart. oil, containing high carotenoid and phenolic compounds content, with Arabic gum and gelatin, using the complex coacervation method. The yield, efficiency, morphology of microcapsules and content of phenolic compounds, carotenoids and antioxidant activity in different processes conditions (concentration of the filling, temperature and agitation speed) were evaluated. The results showed 88% of yield, efficiency up to 70% and a characteristic size of microcapsules. The amount of carotenoids was high in crude oil (394.84 µg of carotenoids/g oil) and the microencapsulation tests showed amounts of 19.19 to 166.40 µg of carotenoids/g oil. The phenolic compounds in the crude oil were 20.73 mg GAE/g sample and the microencapsulation tests showed amounts of 3.17 to 15.16 mg GAE/g oil. The values of bioactive compounds influenced in the antioxidant activity though ABTS•+ method with values of 161.70 µM trolox/g oil to crude oil and 7.70 and 159.54 µM trolox/g oil for microcapsules tests.

Landscape change alters reproductive phenology and sex expression in Attalea palms (Arecaceae) of southwestern Amazonia

As deforestation and land-use/land-cover change advance in tropical forest regions, an understanding of how plants adjust phenology and reproductive dynamics to altered landscapes can provide insights into plasticity, productivity, and population persistence. We compared the reproductive phenology, sex expression, and flower and fruit production of two monoecious Amazonian palms, Attalea phalerata and Attalea speciosa, in old-growth forest and as remnant trees growing in actively grazed pastures. Using 2 years of phenology data collected from natural populations near Vila Extrema, Rondonia, and eastern Acre, Brazil, we compared flowering and fruiting in the two habitats and tested for effects of palm height, crown size, and light availability on inflorescence and sex expression. Forest conversion to pasture stimulated greater overall flowering and fruiting in individual Attalea palms. As a population, remnant pasture palms continuously bore flowers and fruits year-round, while forest palms flowered seasonally in isolated peaks with consecutive months of inactivity. Crown size and greater light exposure affected flowering and fruiting dynamics in A. phalerata and A. speciosa, respectively, and increased light availability shifted A. speciosa sex expression towards greater female investment, primarily through regulation of sex determination and bud abortion. Removal of tropical forest does not always lead to the downfall of remnant tree populations, and under favorable conditions, such as abandonment of cropland and pasture, higher levels of reproduction can facilitate recovery of future generations. Tree species with flexible sex expression may be particularly resilient in the face of land-use and land-cover change.

The Chemical Composition and Metabolic Effects of Attalea phalerata Nut Oil in Hyperlipidemic Rats Induced by a High-Fructose Diet.

The fatty acids found in nuts are important regulators of the metabolism. These acids are frequently associated with a reduction of serum cholesterol and body fat and a lower risk of developing cardiovascular disease. In this context, the aim of this study was to identify and quantify the nut oil fatty acids from Attalea phalerata and investigate their metabolic effects in rats with hyperlipidemia induced by a diet rich in fructose. Oleic and lauric acids were the major compounds found in the A. phalerata nut oil (APNO). Hyperlipidemic rats treated with APNO showed a reduction in the total serum cholesterol similar to those treated with simvastatin, an increased body temperature by 1 °C, and a reduction in the body weight gain and mesenteric depot of white adipose tissue compared to the hyperlipidemic controls rats. There was an increase in the relative liver weight of rats treated with APNO, without, however, any change in the serum markers of hepatic toxicity. In addition, there was an increase in the moisture and lipid content of the feces of the rats treated with APNO compared to the controls. Together, these results suggest that APNO has potential use in health foods and nutritional supplements to control hypercholesterolemia and obesity.

Anti-inflammatory, antiproliferative and cytoprotective potential of the Attalea phalerata Mart. ex Spreng. pulp oil.

The anti-inflammatory, antiproliferative and cytoprotective activity of the Attalea phalerata Mart. ex Spreng pulp oil was evaluated by in vitro and in vivo methods. As for the chemical profile, the antioxidant activity was performed by spectrophotometry, and the profile of carotenoids and amino acids by chromatography. Our data demonstrated that A. phalerata oil has high carotenoid content, antioxidant activity and the presence of 5 essential amino acids. In the in vitro models of inflammation, the oil demonstrated the capacity to inhibit COX1 and COX2 enzymes, the production of nitric oxide and also induces macrophages to spreading. In the in vivo models of inflammation, the oil inhibited edema and leukocyte migration in the Wistar rats. In the in vitro model of antiproliferative and cytoprotective activity, the oil was shown inactive against the kidney carcinoma and prostate carcinoma lineage cells and with cytoprotective capacity in murine fibroblast cells, inhibiting the cytotoxic action of doxorubicin. Therefore, it is concluded that A. phalerata pulp oil has anti-inflammatory effects with nutraceutical properties potential due to the rich composition. Moreover, the oil also has cytoprotective activity probably because of its ability to inhibit the action of free radicals.

Produtividade de almeirão orgânico produzido com substratos alternativos

O objetivo deste trabalho foi avaliar substratos alternativos na qualidade de mudas e produtividade do almeirão em cultivo orgânico. O experimento foi conduzido em duas fases: em viveiro e em campo, em junho de 2016. O campo experimental está localizado no Sítio Ecológico Seridó, em Rio Branco, Acre. O delineamento utilizado foi em blocos casualizados com cinco tratamentos e quatro repetições. Os tratamentos foram constituídos pelo substrato comercial Golden® utilizado como controle e por mais quatro substratos alternativos. Os substratos alternativos foram compostos por: terra (30%), composto orgânico (30%); condicionador de solo (30%), carvão (10%), termofosfato natural (1,5 kg m-3), calcário dolomítico (1,0 kg m-3) e sulfato de potássio (1,0 kg m-3), o que os diferenciaram foi a substituição do condicionador: casca de arroz carbonizada; fibra de coco; fibra do caule da palmeira ouricurí (Attalea phalerata) ou caule decomposto de sumaúma (Ceiba pentandra). A cultivar utilizada foi almeirão pão de açúcar. Aos 22 dias após a semeadura as mudas foram avaliadas para a obtenção do índice de qualidade e aos 60 dias após o transplantio a campo avaliou-se a massa fresca total, comercial, seca total, comercial e a produtividade total e comercial. Os substratos contendo sumaúma e fibra de coco tiveram melhor desempenho para massa seca da raiz e índice de qualidade de Dickson na fase de muda, massa fresca total, massa seca total e comercial e produtividade total à campo.