文章基本信息

标题：Idade e pré hidratao na viabilidade das sementes de Asclepias curassavica
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作者：Cristovam Colombo Belfort ; Flávia da Silva Soares ; Pedro Emartino Bezerra Campelo 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2022
卷号：11
期号：4
页码：1-8
DOI：10.33448/rsd-v11i4.27204
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：Popularly identified as official-of-room or false-weed, Asclepias curassavica L. is an annual, latent, erect, small plant, whose height, depending on environmental conditions, varies between 40 and 80 cm. Pasture weed, considered highly toxic to cattle, although it also has medicinal properties, it is frequently used to kill worms and, in moderate doses, is purgative. The study and formation of a crop begins with the production of seedlings, and the quality of the propagation material is decisive. At the same time, during the storage period, it is essential to control both the physiological and sanitary quality of the seed. Pre-hydration is usually a procedure adopted to harmonize emergence, especially in wild seeds. The objective was, at present study, to evaluate hydration times in the moisture gain and vigor of the seeds, using a randomized block design, with three replications, in which the treatments corresponded to a 4 x 2 factorial arrangement, resulting from the combination of the factors of time of hydration (zero, two, four, and six hours) and seed age (newly harvested; two years old) in the wild species oficial de sala. In the germination pattern, young and old seeds behaved little differently in terms of hydration times. Seed hydration contributes to harmonizing germination and, for six hours, it allows germination of around 84% in new seeds, being innocuous in old seeds, which proved to be unviable.
关键词：Oficial de sala;Osmotic conditioning;Germination;Seed technology.