Impacto da salinidade no desenvolvimento e crescimento de mudas de carnaúba (Copernicia prunifera (Miller) H.E.Moore)

Holanda, Sâmia Jainara Rocha; Araújo, Francisca Soares de; Gallão, Maria Izabel; Filho, Sebastião Medeiros

doi:10.1590/s1415-43662011000100007

Cited by 12 publications

(13 citation statements)

References 13 publications

(15 reference statements)

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“…The tolerance limit is an excellent primary bioindicator of soils with high saline concentrations that change according to variations in the environment. This value is higher than that found by Holanda et al (2011), who studied the same species subjected to saline stress and demonstrated that the development of the carnauba was compromised in concentrations greater than or equal to 3 dS m -1 . These authors studied the carnauba for up to 120 days after sowing.…”

Section: Nutrient Composition Of Carnauba Plants Under the Effects Ofcontrasting

confidence: 58%

Initial growth of carnauba (Copernicia prunifera) progenies under saline water

Rocha

Araújo

2019

Aust J Crop Sci

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The carnauba (Copernicia prunifera [Miller] H. E. Moore) is a palm tree that has multiple uses and is of great economic and social importance for extractive families in Northeast Brazil. The objective of this work is to analyze the effect of saline water on the production of different progenies of carnauba. The experiment is arranged in a 5 x 36 factorial scheme in a randomized complete block design, with five replications and five plants per replication. The treatments consist of five levels of irrigation water salinity (with commercial NaCl levels, free of iodine: 0, 25, 50, 75, and 100 mM) and 36 free-pollination progenies. The following characteristics are evaluated: foliar length (H), collecting diameter (DC), survival rate (TS), number of leaves (NF), dry shoot mass (MSPA), dry mass of the root system (MSSR), and dry mass ratio of the root system to the shoot. The results reveal similar behavior among the progenies for the evaluated characteristics. However, significance is observed for the parameters leaf length, collection diameter, and survival rate when the progenies are subjected to salinity above 9.6 dS m-1. Another significant factor is the accumulation of Na+ in the aerial and radicular parts in salinity levels of 7.1, 9.6, and 12.0 dS m-1, with the root system being the most affected site. Thus, the tested progenies exhibit similar behaviors in tolerance to irrigation water salinity. Since the carnauba can produce seedlings in water with electrical conductivity of up to 9.6 dS m-1, this species is characterized as a bioindicator of saline soils and is recommended for planting in degraded areas.

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Section: Nutrient Composition Of Carnauba Plants Under the Effects Ofcontrasting

confidence: 58%

Initial growth of carnauba (Copernicia prunifera) progenies under saline water

Rocha

Araújo

2019

Aust J Crop Sci

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“…Segundo D'Alva (2004), a C. prunifera tem distribuição geográfi ca nos vales dos rios nordestinos, especialmente no meio-norte e nas maiores latitudes do sertão. A espécie ocorre em ambientes com solos argilosos e em aluviões, onde há maior saturação hídrica e elevados teores de salinidade (HOLANDA et al, 2011). Estas áreas podem permanecer inundadas por alguns meses do ano e, posteriormente, chegam a ser submetidas ao estresse hídrico nos períodos mais secos.…”

Section: Dados Etnoecológicosunclassified

Etnoecologia E Etnobotânica Da Palmeira Carnaúba No Semiárido Brasileiro

Sousa

Silva

Rocha

et al. 2015

CERNE

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RESUMO:O objetivo do presente trabalho foi investigar aspectos etnoecológicos e etnobotânicos da carnaúba (Copernicia prunifera (Miller) H. E. Moore, Arecaceae) em uma comunidade extrativista do município de Ipanguaçu, estado do Rio Grande do Norte. Foram entrevistados moradores considerados informantes-chaves, utilizando a técnica da indução não específica, turnê guiada e observação direta para confirmar as informações obtidas. Segundo a maioria dos moradores do Assentamento Pedro Ezequiel de Araújo, o carnaubal da região é uma formação vegetal natural. Na investigação etnoecológica, 73% dos informantes relataram a ocorrência de "um tipo diferente de carnaúba", conhecida como "carnaúba branca", fenotipicamente distinta da "carnaúba comum" por apresentar estipe claro, frutos menores e ausência de espinhos no pecíolo, além de ser rara no local de estudo. Grande parte dos informantes observam os processos fenológicos da carnaúba, sendo condizentes ao afirmar que a espécie possui dispersão quiropterocórica. Na etnobotânica, o pó cerífero foi citado por todos como o produto mais importante extraído da carnaúba e a folha a parte mais usada, seguida dos frutos, caule e raiz. Foram relatadas ainda as divisões de trabalho na extração do pó da carnaúba. Os resultados desta pesquisa irão contribuir para difundir os conhecimentos etnobotânicos e etnoecológicos da carnaúba, subsidiando estratégias de manejo e conservação das populações naturais. ETHNOECOLOGY AND ETHNOBOTANY OF THE PALM CARNAUBA WAX IN BRAZILIAN SEMI-ARIDABSTRACT: The aim of this study was to investigate aspects of ethnoecological and ethnobotanical of carnauba wax (Copernicia prunifera (Miller) H. E. Moore, Arecaceae) in an extractive community of municipality of Ipanguaçu, Rio Grande do Norte state. We interviewed key informants, using the technique of inducing nonspecific, guided tour and direct observation to confirm the data. According to most residents of Pedro Ezequiel Araújo community, the area of carnauba wax in the region is natural. In the research ethnoecological, 73% of informants reported the occurrence of "a different kind of carnauba", known as "white carnauba" phenotypically distinct from the "common carnauba wax" by presenting clear stipe, smaller fruits and absence of spines on the petiole, and is rare at the study site. Much of the informants observed phenological phases of carnauba wax, being consistent in stating that the species has fruits dispersed by bats. In ethnobotany, powder wax was cited by all as the most important product extracted from leaves of carnauba and the most used, followed by fruit, stem and root. Were still reported the division of work in the extraction of powder wax from the carnauba. The results of this research will contribute to knowledge of ethnobotanical and ethnoecological carnauba, supporting strategies for management and conservation of natural populations.

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“…In this framework, the carnaubeira (C. prunifera (Miller) HE Moore), an endemic palm of the semi-arid Northeast belonging to the Arecaceae Family, has been used historically by people from the northeast region of Brazil as a source of income due to its economic and cultural importance. The extraction of the ceriferous powder from its leaves is an extractive activity responsible for the sustenance of several families during the drought period, which extends from July to December [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Use, Perception, and Local Management of Copernicia Prunifera (Miller) H. E. Moore in Rural Communities in the Brazilian Savanna

Almeida

Feitosa

Sousa

et al. 2020

Preprint

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Background Copernicia prunifera is a species native to the northeastern region of Brazil and is economically important as a source of income for many human populations in the region that carry out intense extractive activity on the species. This study aimed to evaluate the uses, management, and perception of the species by local extractors. Methods Two communities were studied, Bem Quer, where 15 extractors were interviewed, and Cana, where 21 extractors considered specialists were interviewed, totaling a sample of 36 informants. A regression analysis was used to explore the relationships between social variables (age, time in extractive activity, and income obtained from extraction) with the number of leaves exploited. The relationship between time of extraction, and time of residence in the community was also analyzed. Results The leaf was indicated as the most used part, from which an important powder is extracted for the production of wax. In addition, the leaf was also indicated for fertilization and construction. Uses were also indicated for the stem (construction) and fruit (forage). The relationship between the socioeconomic variables, income obtained through extraction and the amount of leaves extracted (in thousands) was significant (R2 = 0.73 and p < 0.001). However, the other variables analyzed in this study, such as the time spent extracting leaves and the amount of time residing in the community (R2 = 0.03 and p > 0.05), the number of leaves extracted and the age of informants (R2 = 0.05 and p > 0.05) and number of leaves extracted and time of extraction (R2 = 0.04 and p > 0.05) did not indicate a relationship. Conclusion C. prunifera was had a great economic and cultural importance for studied communities. It is possible that the economic factor is the preponderant force that directs the management strategies of native species.

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Impacto da salinidade no desenvolvimento e crescimento de mudas de carnaúba (Copernicia prunifera (Miller) H.E.Moore)

Cited by 12 publications

References 13 publications

Initial growth of carnauba (Copernicia prunifera) progenies under saline water

Initial growth of carnauba (Copernicia prunifera) progenies under saline water

Etnoecologia E Etnobotânica Da Palmeira Carnaúba No Semiárido Brasileiro

Use, Perception, and Local Management of Copernicia Prunifera (Miller) H. E. Moore in Rural Communities in the Brazilian Savanna

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