SciELO - Scientific Electronic Library Online

vol.30 issue1Micropropagation of Homalomena pineodora Sulaiman & Boyce (Araceae): a new species from MalaysiaHomeopathic and high dilution preparations for pest management to tomato crop under organic production system author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Horticultura Brasileira

Print version ISSN 0102-0536


KIKUTI, Ana Lúcia P  and  MARCOS FILHO, Julio. Seed vigor tests for lettuce seeds. Hortic. Bras. [online]. 2012, vol.30, n.1, pp.44-50. ISSN 0102-0536.

The seed vigor is evaluated by traditional tests and more recently by seedling imaging analysis to obtain objective information within a short period of time. The objective of the study was to verify the accuracy of accepted vigor tests in comparison to an automated computer imaging system for seedling evaluation (SVIS®) in order to assess lettuce seed vigor. Six seed lots each of two cultivars (Vanda and Vera) were evaluated in the germination, cold germination (15ºC), seedling emergence and accelerated aging (traditional and saturated salt at 41ºC/48h and 41ºC/72h). The Seed Vigor Imaging System was also utilized, developed by the Ohio State University (SVIS®) that generate numerical values of seedling growth, uniformity and vigor index. The tests were carried out in five evaluation times during a 12-month storage period. The results indicated that saturated salt accelerated aging at 41ºC/48 or 72 hours and the rate of germination test, are sensitive to detect differences in the physiological potential of lettuce seed lots as well as the seedling growth and root length parameters evaluated by SVIS.

Keywords : Lactuca sativa; seedling imaging analysis; physiological potential.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License