Consulta: creatorFacets:"Pilon,Natashi Aparecida Lima"
Registros recuperados: 2
Data/hora: 08/06/2024 14:26:48

The relationship between plant density and survival to water stress in seedlings of a legume tree
Provedor de dados: 39
Autores: Honda,Eliane Akiko; Pilon,Natashi Aparecida Lima; Durigan,Giselda.
ABSTRACT Competition for soil water is one of the major processes that drive the assembly of plant communities, particularly in regions subjected to long dry seasons. The relationship between plant density and soil water competition has strong, but poorly understood, practical implications for population dynamics, restoration and conservation. We planted seedlings of the pioneer legume tree Senegalia polyphylla in containers and assessed the effects of plant density on their resistance to water stress. We completely eliminated the above-ground parts (stem and shoots) of randomly selected plants at 60-days post-planting in order to create three different densities of seedlings. We saturated the soil of the remaining seedlings and then deprived them of...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Drought stress; Evapotranspiration; Management; Plant competition; Senegalia polyphylla; Soil water; Thinning.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300602

Factors influencing seed germination in Cerrado grasses
Provedor de dados: 39
Autores: Kolb,Rosana Marta; Pilon,Natashi Aparecida Lima; Durigan,Giselda.
Few studies address the ecology of herbs of Cerrado grasslands, which are ecosystems where the long dry season, high temperatures, insolation, fire and invasive grasses greatly influencing germination and the establishment of plants. We assessed germination of 13 species of Poaceae from Cerrado grasslands under nursery conditions or in germination chambers, the latter with i) recently collected seeds and seeds after six months storage, ii) under constant and alternating temperatures, and iii) in the presence and absence of light. Germinability, mean germination time (MGT) and required light were quantified to elucidate factors involved in successful germination. Germinability was low for most grasses, probably because of low seed viability. For most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Grasslands; Poaceae; Savanna; Seed storage; Seed viability.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100087