Produtividade e qualidade de sementes de flores produzidas em Santa Maria

Bellé, Rogério Antônio; Spannenberg, Rudimar

doi:10.1590/s0103-84781997000100010

Cited by 2 publications

(5 citation statements)

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“…The germination of mean normal seedlings was of 89% and 96% for C. argentea and C. cristata species, respectively, for all the periods of storage ( Figure 1D). Bellé and Spannenberg (1997) evaluated the germination of cockscomb seeds produced in Santa Maria, RS, with average of 72% to 95%, according to the time of harvest. Rocha and Demattê (2003) observed germination of 79% for seeds stored for one year of Amaranthus tricolor L., preserving its physiological quality.…”

Section: Resultsmentioning

confidence: 99%

“…genus, with general average of 2.2% of infestation on the seeds of the two species of cockscomb; however, the presence of these pathogens affects negatively the ornamental characteristic of the inflorescences, making it impossible their commercialization. Besides that, when the cultivation is destined for production of seeds, inflorescences attacked by these phytopathogens become unviable (Bellé and Spannenberg, 1997).…”

Section: Resultsmentioning

confidence: 99%

“…For Bellé and Spannenberg (1997) and Barreto et al (2011), the greatest difficulty of the cultivation of floral stem from the seeds in the country is in virtue of the own production of seeds, because they characterize themselves as an activity highly specialized and of domain of international market. In the process of seeds import there is no information in relation to the sanitary quality, and this characterizes a problem that involves since the introduction of pathogens that do not exist in the country yet, as losses in virtue of diseases on seeds, saplings, plants in the field or even in post-harvest.…”

Section: Resultsmentioning

confidence: 99%

“…Among the main cut flowers produced by seeds, we highlight the cockscomb species, belonging to the Amaranthaceae family, known popularly as plumed cockscomb (Celosia argentea L.) due to the fact that its characteristic inflorescence is in form of feather and, the cockscomb species (Celosia cristata L.) in virtue of its inflorescence is fan-shaped. Both species present ornamental character, with intense flourishing and diversity of colors of their inflorescences (Bellé and Spannenberg, 1997;Lorenzi, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Qualidade fisiológica e sanitária de sementes de celosias armazenadas por diferentes períodos

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Barbieri

Bellé

et al. 2019

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The objective was to evaluate the physiological and sanitary quality of cockscomb seeds stored for different periods. The experiment was conducted in a completely randomized design, with a 2x5 factorial scheme (two species of cockscomb: Celosia argentea L. and Celosia cristata L., and five seed lots with different storage periods: 0, 4, 8, 12 and 16 years, from the date of harvest) with four replicates. After harvesting each batch of seeds, in their respective years, they were stored with an average moisture content of 11% and average germination of 98% in cold chamber in packages of Kraft paper (15 ºC and 40% RH). It was observed that the average vigor (first count of germination) of the seeds of the two species of cockscomb was 88%, and the average germination of normal seedlings was 89 and 96% for the C. argentea and C. cristata species, respectively, with mean germination of 2.9 days for all storage periods. The relative frequency demonstrated homogeneity in the germination of the two species of cockscomb maintaining germinative viability in all periods of storage. It is concluded that the physiological potential and sanitary quality of the seeds of the C. argentea and C. cristata were preserved for periods ranging from zero to sixteen years of storage.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Qualidade fisiológica e sanitária de sementes de celosias armazenadas por diferentes períodos

Menegaes

Barbieri

Bellé

et al. 2019

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“…The species from Amaranthaceae family stands out by the exoticism of its inflorescences and the great seeds production per plant, on average of 1,580 kg ha -1 (BELLÉ and SPANNENBERG, 1997). Among them, the two species of cockscomb (Celosia argentea L. and Celosia cristata L.), originating in Asia, have erect size and little branched, from 30 to 90 cm of height, green leaves and slightly reddish, ornamental inflorescences of several colors, among red, yellow and white (LORENZI, 2013).…”

Section: Introductionmentioning

confidence: 99%

Fotoblastismo e temperaturas na germinação de sementes de celosias

Menegaes

Barbieri

Bellé

et al. 2018

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Germination is the result of the triggering of various processes occurred in the seed, which are influenced by the environmental conditions, especially light and temperature. In this way, the objective of the present study was to evaluate the influence of different temperatures and photoblastic on the germination of cockscomb seeds. The experiment was carried out in a completely randomizeddesign, with a 2 x 5 factorial scheme (two lighting regimes and five temperatures), with four replicates of 50 seeds, for two species of cockscomb (Celosia argentea L. and C. cristata L.). The lighting regimes were with absence (dark continuous) and the presence of light (photoperiod of 24 h), and temperatures were constant at 15, 20, 25, 30 and 35 ºC. The seed lots of the two species of cockscomb were cultivated in 2012 and stored in a cold chamber (15 ºC and 40% RH), with an average moisture content of 11% and a mean germination of 98%. The results of the laboratory tests indicated that the two species of cockscomb presented fast germination in average 2.5 and 4.5 days for the regimes with presence and absence of illumination, respectively, characterizing as neutral photoblastic species. However, it was observed that the temperature is a limiting factor for the germination of the two species of cockscomb, having its optimal thermal range between 20 and 30 ºC.

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Produtividade e qualidade de sementes de flores produzidas em Santa Maria

Abstract: RESUMO Com

Cited by 2 publications

References 1 publication

Qualidade fisiológica e sanitária de sementes de celosias armazenadas por diferentes períodos

Qualidade fisiológica e sanitária de sementes de celosias armazenadas por diferentes períodos

Fotoblastismo e temperaturas na germinação de sementes de celosias

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