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Germination of Chenopodium Album in Response to Microwave Plasma Treatment

Plasma Science and Technology 2008年第4期10卷 506-511页

作者： Bo■ena ER vit.zslav stra■k Michal ER■ Milan TICH■ Petr PATENkA Institute of Systems Biology and Ecology Academy of Sciences of the Czech RepublicNa Sádkách 7CZ-370 05eské BudějoviceCzech Republic University of South Bohemia in eské Budějovice Department of PhysicsJeronymova 10CZ-371 15 eské BudějoviceCzech Republic Charles University in Prague Faculty of Mathematics and PhysicsV Holeovikách 2CZ-180 00 Praha 8Czech Republic University of South Bohemia in eské Budějovice Department of PhysicsJeronymova 10 CZ-371 15 eské BudějoviceCzech Republic Technical University of LiberecDepartment of Material SciencesHáIkova 6CZ-461 17 Liberec iCzech Republic

The seeds of Lamb＇s Quarters （Chenopodium album agg.） were stimulated by low- pressure discharge. The tested seeds were exposed to plasma discharge for different time durations （from 6 minutes to 48 minutes）. Germination tests were performed under specified laboratory conditions during seven days in five identical and completely independent experiments. Significant differences between the control and plasma-treated seeds were observed. The treated seeds showed structural changes on the surface of the seat coat. They germinated faster and their sprout accretion on the first day of seed germination was longer. Germination rate for the untreated seeds was 15% while it increased approximately three times （max 55%） for seeds treated by plasma from 12 minutes to 48 minutes.

关键词： early growth germination Lamb's Quarters seed enhancement stimulation surfatron discharge

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Does Cold Plasma Affect Breaking Dormancy and Seed Germination? A Study on Seeds of Lamb's Quarters(Chenopodium album agg.)

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Plasma Science and Technology 2009年第6期11卷 750-754页

作者： Bozena ERA Michal ERY vit.zslav TRANAk Petr PATENkA Milan TICHY Institute of Systems Biology and Ecology Academy of Sciences of the Czech RepublicNa Sadkach 7CZ-370 05 Ceske BudejoviceCzech Republic University of South Bohemia in Ceske Budejovice Faculty of EducationDepartment of PhysicsJeronymova 10CZ-371 15 Ceske BudejoviceCzech Republic Technical University of Liberec Department of Material SciencesHalkova 6CZ-461 17 Liberec 1Czech Republic Charles University in Prague Faculty of Mathematics and PhysicsV Holesovickach CZ-180 00 Praha 8Czech Republic

Low-pressure discharge is applied for stimulation of germination of two seed lots of Lamb＇s Quarters （Chenopodium album agg.） with different starting germinations （17%, 8%） and in different stages of dormancy. Different exposition durations with cold plasma treatment were applied. The variable of the ratio cumulative germination was calculated. The Richards＇ equation was used for curve-fitting and simulation of the growth curves. Population parameters, namely 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 the Me parameter was found between two tested seed lots, and no interspecies characteristics were changed using low-pressure discharge. The results suggested that plasma treatment changed seed germination in Lamb＇s Quarters seeds.

关键词： chenopodium album fitting treatment parameter. seed germination low-pressure discharge plasma

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