Collection time and seed germination of commercialized Comanthera (Eriocaulaceae) from Serra do Ambrósio, Minas Gerais

Oliveira, Maria Neudes Sousa de; Cruz, Lana Ivone Barreto; Tanaka, Mário Kiichiro

doi:10.1007/s40415-013-0045-y

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…Rapid germination seems to be a constant trait within the Eriocaulaceae, as it has been reported for several other species and genera Fichino et al 2012;Oliveira et al 2014a). Additionally, shoot development prior to root is a characteristic related to light requirement for germination in Eriocaulaceae species from ''Campos Rupestres'' vegetation (Sá e Carvalho and Ribeiro 1994a, b; Scatena et al 1993Scatena et al , 1996Oliveira andGarcia 2005, 2011;Kraus et al 1996).…”

Section: Discussionsupporting

confidence: 60%

“…The results of the inflorescence anatomical, seed production, and germination analyses reported herein constitute empirical evidence that at the beginning of the collection period the capitula lack on mature seeds, like in C. magnifica, C. suberosa (Oliveira et al 2014a), and Syngonanthus nitens (Oliveira et al 2014b). Precocious collection, i.e., starting before formation or complete maturation of seeds, has been pointed out, along with overharvesting, as the main cause of the reduction of natural populations of C. elegans (Giulietti et al 1988(Giulietti et al , 1996, as it leads to decrease in seed production and seedling recruitment (Bedê 2006).…”

Section: Discussionsupporting

confidence: 59%

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Harvest times of Comanthera elegans, a worldwide traded Brazilian species of everlasting flower: implications on seed production, germination, and on species management

et al. 2015

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Comanthera elegans (Bong.) L.R. Parra & Giul (''sempre-viva-pé-de-ouro'') is one of the most economically important species among the Eriocaulaceae in Brazil. Its inflorescences are used to make handicrafts and have long been exported to all over the world. The collection period usually begins in the second half of April and extends to May, occasionally until the first half of June. We assessed seed production and germinability throughout the 2006 harvest season: April-November, as well as the variation in morphology and anatomy of inflorescences along this period. In the evaluated flowering, seeds still had not yet been completely formed by early April, the onset month of commercial collection. Instead, germinable seeds were first observed in May, while seed dispersal was already in progress in early June. Collection in June resulted in plant uprooting, due to the tighter attachment of the scape to the rosette. The beginning and peak of germination occurred earlier for seeds from the most delayed collections, and the highest germinability was presented by seeds collected in September.We showed that the best period for the plant sexual reproduction surpasses the best period for commercial collection. Due to the onset of germinable seeds only as late as at the second half of the harvesting period, encouraging the delayed beginning of inflorescence collection may well represent a management strategy. Furthermore, the reservation of non-harvesting areas, which would secure the maintenance of plant populations in the wild and thus guarantee seed production and dispersal; maintaining remnants of inflorescences in collected areas; and encouraging cultivation should be considered.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionsupporting

confidence: 59%

Harvest times of Comanthera elegans, a worldwide traded Brazilian species of everlasting flower: implications on seed production, germination, and on species management

et al. 2015

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“…Recruiting through seeds is commonly observed in Eriocaulaceae species (CASTELANI, 1996;SANO, 1996), including those in the genera Comanthera (OLIVEIRA et al, 2014;OLIVEIRA et al, 2015) and Syngonanthus (SCHMIDT et al, 2007). For Syngonanthus nitens (golden grass), 40% of the plants in a population evaluated by Schmidt et al (2007) were recruited via seeds.…”

Section: Discussionmentioning

confidence: 99%

Desenvolvimento da sempre viva (Comanthera elegans (Bong.) L.R. Parra & Giul.) em três sistemas de cultivo

Moreira

Oliveira

Tanaka

2017

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Marketing the inflorescences of Comanthera elegans (Bong.) L.R. Parra & Giul. represents a source of income to many families from extractives communities in the portion of the Espinhaço Range located in the state of Minas Gerais, Brazil. Cultivating this species stands out by allying income generation with conservation since the species is currently endangered. This study aimed to assess aspects of the development of C. elegans in three cultivation systems: beds, rows, and whole area. Sowing took place in January 2009 and the inflorescences were harvested in May 2010, which characterized the experimental period. Emergence; plant density; rates of flowering, mortality, resprouting, and recruiting of new individuals; and production of inflorescences per plant and per area were assessed. Emergence began approximately 50 days after sowing. Plant density ranged from 130 to 350 plants.m -2 among the three cultivation systems. The highest mortality rate (18%) was observed at the peak of the dry season (August) and the overall mortality rate over one reproductive cycle was 49%. Of the plants that lost the aerial part, 36% resprouted. . Keywords: Campos Rupestres, Eriocaulaceae, production, management, dry cut flowers. RESUMO Desenvolvimento da sempre viva (Comanthera elegans (Bong.) L.R. Parra & Giul.) em três sistemas de cultivoA comercialização das inflorescências de Comanthera elegans (Bong.) L.R. Parra & Giul. representa fonte de renda para muitas famílias de comunidades extrativistas da porção mineira da Serra do Espinhaço. O cultivo representa uma importante alternativa de geração de renda aliada à conservação, já que a espécie consta em lista de ameaçadas. Objetivou-se com o presente trabalho avaliar os aspectos do desenvolvimento de C. elegans em três sistemas de cultivo: em canteiro, faixa e área total. O semeio ocorreu em janeiro de 2009 e a colheita das inflorescências em maio de 2010 caracterizou o final do período experimental. Avaliou-se a emergência, a densidade de plantas, as taxas de floração, de mortalidade, de rebrota e de recrutamento de novos indivíduos e a produção de inflorescências por planta e por área. A emergência iniciou aproximadamente 50 dias após o semeio. A densidade de plantas variou entre 130 e 350 plantas.m -2 nos três sistemas de cultivo. A maior taxa de mortalidade (18%) foi observada no pico da estação seca (agosto) e a taxa de mortalidade acumulada durante um ciclo reprodutivo foi de 49%. Das plantas que perderam a parte aérea, 36% rebrotaram. O brotamento e a germinação de sementes contribuíram com 30 e 3% do recrutamento de novos indivíduos. C. elegans apresentou duas florações (abril-maio de 2009 e abril-maio de 2010): 5,4% das plantas floresceram na primeira e 78%, na segunda floração. Cada planta produziu entre 3-178 inflorescências, e a maior produção de inflorescências, em peso (232 g.m -2 ) e número (2910 inflorescências.m -2 ), foi observada no sistema de cultivo em canteiros, o que corresponde a 1624 Kg.ha -1 . Palavras-chave: Campos Rupestres, Eriocaulaceae, prod...

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Effects of traditional extractive management on the seedling recruitment dynamics of Comanthera elegantula (Eriocaulaceae) in Espinhaço mountain range, SE Brazil

Bedê

Paglia

Neves

et al. 2018

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Collection time and seed germination of commercialized Comanthera (Eriocaulaceae) from Serra do Ambrósio, Minas Gerais

Cited by 6 publications

References 17 publications

Harvest times of Comanthera elegans, a worldwide traded Brazilian species of everlasting flower: implications on seed production, germination, and on species management

Harvest times of Comanthera elegans, a worldwide traded Brazilian species of everlasting flower: implications on seed production, germination, and on species management

Desenvolvimento da sempre viva (Comanthera elegans (Bong.) L.R. Parra & Giul.) em três sistemas de cultivo

Effects of traditional extractive management on the seedling recruitment dynamics of Comanthera elegantula (Eriocaulaceae) in Espinhaço mountain range, SE Brazil

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