GERMINAÇÃO DE SEMENTES E EMERGÊNCIA DE PLÂNTULAS DE &lt;i&gt;Luehea divaricata&lt;/i&gt; Mart. et. Zucc. EM DIFERENTES SUBSTRATOS

Dutra, Adriana Falcão; Araújo, Maristela Machado; Rorato, Daniele Guarienti; Mieth, Patrícia

doi:10.5902/1980509822744

Cited by 14 publications

(11 citation statements)

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“…issue that hinders the propagation of the Luehea divaricata is the germination rate of collected seeds. In a germination test performed on blotting paper, the germination rate of a seed lot collected in 2010 and stored for 7 months was only 27% (DUTRA et al, 2016), which confirmed results of previous studies that reported that the seed germination of Luehea divaricata is very variable, ranging between 20% and 75% (LORENZI, 2008). Thus, the minicutting technique may be away to overcome difficulties in propagating native species, especially species with seeds that are difficult to obtain and germinate, such as Luehea divaricata.…”

Section: Forestry Sciencesupporting

confidence: 87%

Indolebutyric acid in “pulse” treatment on the rooting of Luehea divaricata minicuttings

et al. 2019

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The objective of the present research was to evaluate the effect of different concentrations of indolebutyric acid (IBA) on the rooting of Luehea divaricata minicuttings under two different cultivation periods in a greenhouse environment. The minicuttings were immersed in a hydroethanolic solution containing IBA. All minicuttings survived after 30 and 60 days of cultivation. Root formation at 30 days of cultivation with 1000 mg L-1 of IBA was 91.7%, the same rate as that observed with 4000 mg L-1. At the 1000 mg L-1 concentration, the number of roots was the greatest among all treatments, with 8.42 roots per minicutting after 30 days of cultivation. After 30 days of cultivation, the formation and number of roots with the use of 1000 mg L-1 of IBA in the “pulse” treatment produced the best outcome results, allowing the plants to spend less time in a greenhouse at a reduced concentration of auxin when compared with other treatments. However, to obtain higher averages of secondary root formation, root length, and number of leaves, it is necessary to increase the cultivation period to 60 days.

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Section: Forestry Sciencesupporting

confidence: 87%

Indolebutyric acid in “pulse” treatment on the rooting of Luehea divaricata minicuttings

et al. 2019

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“…(Gladunova et al, 2016), Hieracium pratense (Panebianco & Willemsen, 1976), H. aurantiacum L., H. praealtum L. (Bear et al, 2012). Sand substrate looks to be an appropriate substrate for seed germination of different alien and native species (e.g., Gladunova et al 2014Gladunova et al , 2016Dutra et al 2016;Radivojevic et al 2016). Therefore, it may be suggested that the germination rate would be higher on a sand substrate, like where this plant grows in the Mordovia Reserve.…”

Section: Resultsmentioning

confidence: 99%

Hieracium sylvularum (Asteraceae) in the Mordovia State Nature Reserve: invasive plant or historical heritage of the flora?

Khapugin¹

2017

Nat. Cons. Res.

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Protected Areas are considered as one of the most appropriate tool for biodiversity conservation. However, invasion of alien species is one of the main and widely known problems of these territories. Therefore, the timely detection and prevention of the invasive species dispersal is one of the main tasks of researchers in Protected Areas. The European species Hieracium sylvularum was found in the Mordovia State Nature Reserve in 2012. In the following years, new locations have been discovered there. That is why the main traits of the ecology and biology, invasiveness level of the alien species were studied. An investigation of the five known H. sylvularum locations has been carried out in the Mordovia Reserve. Attention has been paid to the age-structure of the populations, the accompanying floras' composition and morphometrical parameters of the generative individuals. The environmental conditions of habitats were revealed and compared using phytoindication methods. The mass and germination of seeds, harvested on different locations, were studied. The results indicate that H. sylvularum is not an invasive species. This alien plant is able to reproduce primarily vegetatively. Probably, the population area can extend gradually on each location. Seed dispersal is difficult due to low germinability of seeds, despite of their significant number per plant. Based on obtained results, dry and semi-dry light lichen-moss-Pinus-forests have a higher invasibility by H. sylvularum. Therefore, perhaps, its new locations may be found especially in these habitats. Annual monitoring of the currently known locations of this alien plant is necessary in the Mordovia State Nature Reserve.

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“…Resultados inferiores foram encontrados por Silva et al (2014) aqueles que não ultrapassaram os 66% de germinação. Dutra et al (2016) também apresentaram resultados inferiores ao testarem a germinação de sementes de açoita cavalo (Luehea divaricata) com os substratos rolo de papel, sobre papel mataborrão, entre papel mata-borrão, sobre areia e sobre vermiculita, não conseguiram resultados superiores a 42% de germinação. Tais resultados demonstraram como cada espécie se adapta diferentemente com cada tipo de substrato, de maneira que para o presente trabalho o uso de papel, tanto sobre como entre, apresentaram resultados superiores, sendo estes os mais indicados para o uso no teste de germinação de aveia branca, ao contrário do trabalho citado anteriormente onde estes substratos não apresentaram resultados maior que 27%.…”

Section: Resultsunclassified

Viabilidade das sementes de aveia em diferentes substratos e temperaturas

Hossel

Alegretti

et al. 2019

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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A aveia branca é gramínea anual de inverno muito utilizada na região sul do Brasil, tanto na forma de pastejo como na forma de grãos para alimentação animal. O presente trabalho teve por objetivo avaliar a germinação de sementes de aveia branca (A. sativa L.) em diferentes substratos e diferentes temperaturas. O mesmo foi realizado no laboratório de Fisiologia Vegetal da Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos. As sementes utilizadas nesse experimento foram obtidas no comércio local de Dois Vizinhos-PR. O experimento foi instalado com delineamento inteiramente casualizado, com fatorial 4 X 5 (tipo de substrato X temperatura) com 4 repetições, utilizando-se 100 sementes por unidade experimental. Onde posteriormente foram classificadas e separadas em quatro lotes e colocadas para germinar, os quais foram sobre papel, entre papel, areia e vermiculita, que estavam colocadas dentro de caixas gerbox. Após realizou-se a separação dos mesmos em cinco sub-lotes, sendo estes as condições de temperatura em que as sementes foram colocadas para a germinação, as quais foram de temperaturas de 5°C, 15°C, 25°C, 35°C, e alternado de 5°C para 25°C. Recomenda-se para os processos germinativos de sementes de aveia branca substrato entre papel ou sobre papel em temperatura de 25°C.

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GERMINAÇÃO DE SEMENTES E EMERGÊNCIA DE PLÂNTULAS DE <i>Luehea divaricata</i> Mart. et. Zucc. EM DIFERENTES SUBSTRATOS

Cited by 14 publications

References 1 publication

Indolebutyric acid in “pulse” treatment on the rooting of Luehea divaricata minicuttings

Indolebutyric acid in “pulse” treatment on the rooting of Luehea divaricata minicuttings

Hieracium sylvularum (Asteraceae) in the Mordovia State Nature Reserve: invasive plant or historical heritage of the flora?

Viabilidade das sementes de aveia em diferentes substratos e temperaturas

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