GERMINAÇÃO DE SEMENTESPlatymiscium floribundumVOG. (FABACEAE) SOB A INFLUÊNCIA DA LUZ E TEMPERATURAS

Ciencia Florestal

关键词: vigor;    espécie florestal;    fotoblastismo;    jacarandá.;   

DOI  :  10.5902/1980509824225

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Pesquisas Florestais

【 摘 要 】

Platymiscium floribundumVog., a forest species belonging to the family Fabaceae, has great potential for economic exploitation and can be used both in landscape and in reforestation, in the restoration of degraded areas and permanent preservation. Given the importance of its work, it was aimed to study the influence of light and temperature on seed germination ofPlatymiscium floribundum . We evaluated the germination and vigor under temperatures of constant 25 and 30ºC and  alternated 20-30°C in different light regimes: White (LB), green (LV), red-far (LVD), red (LV) and absence light (A). The experimental design was completely randomized in a factorial 3 x 5 with four replications of 25 seeds. The variables analyzed were: germination, first count of germination, germination speed index (IGV), length and seedling dry weight ( root length, shoot length of seedlings). The seeds ofPlatymiscium floribundumexpress their maximum force in illuminated environment independent of the temperature.

【 授权许可】

CC BY-NC