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Substrate and temperature on seed germination of Aspidosperma vargasii A. DC. (Apocynaceae).

Authors :
Soares Miranda, Izabele Domingues
Mendes Duarte, Manoela
Veiga de Miranda, Rodrigo Otávio
Source :
Colloquium Agrariae. Sep/Oct2021, Vol. 17 Issue 5, p66-72. 7p.
Publication Year :
2021

Abstract

The Amazon has a wide diversity, including forest species with timber and non-timber potential, which often have their use restricted due to a lack of silvicultural information. Thus, the present study aimed to evaluate the effect of substrates and temperatures on seed germination of Aspidosperma vagarsii. Therefore, the premise of a completely randomized design was followed, in a 3 x 3 factorial scheme, with three substrates (paper, sand and vermiculite) and three temperatures (20, 25 and 30 °C). The germination percentage, germination speed index and mean germination time were determined, as well as germination relative frequency graphs. In addition, the weight of a thousand seeds, the number of seeds per kilo, and the moisture content was determined. The weight of thousand seeds was equal to 276.4 g, with 3,618 seeds per kilo, and a moisture content of 9.5%. There was no interaction between the studied factors. The sand substrate and temperatures of 20 and 25 °C presented the best results for seed germination of A. vargasii. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18098215
Volume :
17
Issue :
5
Database :
Academic Search Index
Journal :
Colloquium Agrariae
Publication Type :
Academic Journal
Accession number :
153365803
Full Text :
https://doi.org/10.5747/ca.2021.v17.n5.a461