Does cold plasma affect breaking dormancy and seed germination? Study on seeds of Lamb's Quarters (Chenopodium album agg.)

0335531 - ÚVGZ 2010 RIV CN eng J - Journal Article
Šerá, Božena - Šerý, M. - Straňák, V. - Špatenka, P. - Tichý, M.
Does cold plasma affect breaking dormancy and seed germination? Study on seeds of Lamb's Quarters (Chenopodium album agg.).
[Ovlivňuje studené plazma změnu dormance a klíčivost semen?Studie na semenech merlíku bílého (Chenopodium album agg.).]
Plasma Science & Technology. Roč. 11, č. 6 (2009), s. 750-754. ISSN 1009-0630. E-ISSN 2058-6272
Institutional research plan: CEZ:AV0Z60870520
Keywords : chenopodium album * low-pressure discharge * plasma treatment
Subject RIV: EF - Botanics
Impact factor: 0.380, year: 2009

Two seed lots of Lamb's Quarters (Chenopodium album agg.) that had different start germination (17%, 8%) and different stage of dormancy were used for stimulation of their germination by using a low-pressure discharge. Various exposition times of cold plasma treatment were used. Variable of ratio cumulative germination was calculated. The Richards’ equation was used for curve-fitting and simulation of growth curves. Population parameters (Vi – viability, Me - time, Qu - dispersion, and Sk - skewness) counted from the curves described the germination rate well. Significant differences among Qu confirmed the erratic dormancy and gradual germination of Lamb's Quarters. No difference in Me parameter was found between two tested seed lots, so no interspecies characteristics were changed using low-pressure discharge. It has been suggested that plasma treatment changed seed germination in Lamb's Quarters seeds.

K modifikaci chladným plazmatem (za různých expozičních časů) byly použity dva sety semen merlíku bílého s různým stupněm klíčivosti (17%, 8%). Pro fitování a simulaci růstu byla použita Richardsnova rovnice. Signifikantní rozdíly v populačním parametru Qu mezi všemi použitými vzorky potvrzují nerovnoměrnou dormanci a postupné klíčení. Mezi sety semen nebyly nalezeny žádné signifikantní rozdíly v parametru Me. Při plazmování pravděpodobně nedochází ke změnám v vnitrodruhových charakteristikách klíčících semen merlíku bílého.
Permanent Link: http://hdl.handle.net/11104/0179969