Method for overcoming dormancy in seeds of an Unconventional Food Plant: Phytolacca americana (Phytolaccaceae)

Authors

Keywords:

Germination, H2SO4, PANC, Seedling production

Abstract

Phytolacca americana (Phytolaccaceae) is a species that can be classified as PANC (Unconventional Food Plant), used for food and/or medicinal purposes with analgesic, anti-inflammatory, anti-rheumatic, anti-arthritic properties, and is also suitable for the treatment of various diseases of skin. However, its seeds have tegumentary dormancy causing uneven germination. The objective of the present work was to evaluate the effect of chemical scarification with sulfuric acid in overcoming dormancy in Phytolacca americana (Phytolaccaceae) seeds. The seeds were immersed in 4 ml of concentrated sulfuric acid for different periods of immersion (2, 5, 8, 11 and 14 min.) compared to the control (without sulfuric acid). Using a completely randomized design with six treatments and four replicates of 50 seeds per treatment. The following parameters were evaluated: days to start germination (DIG), germination (G), germination speed index (IVG), abnormal seedlings (PA), dead seeds (SM), hard seeds (SD), and dry mass total (MST). Data were submitted to the Shapiro-Wilk test for normality of variances. And the analysis of variance and regression using RStudio software version 4.1.0. Treatment means were compared using the Scott-Knott test (p ≤ 0.05). The treatments of immersion in sulfuric acid for 2 and 5 minutes proved to be the most efficient in overcoming the dormancy of this species, providing better results in germination variables and accumulation of total seedling biomass.

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References

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Published

2022-05-16

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Vol. 18 No. 2 (2022): Colloquium Agrariae Mar-Abr, 2022

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Artigos

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Method for overcoming dormancy in seeds of an Unconventional Food Plant: Phytolacca americana (Phytolaccaceae). (2022). Colloquium Agrariae. ISSN: 1809-8215, 18(2), 33-41. https://journal.unoeste.br/index.php/ca/article/view/4268

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