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Ing. Jan Winkler, Ph.D.
Identification number: 10022
University e-mail: jan.winkler [at]
Assistant Professor - Department of Plant Biology (FA)
External Teacher - Institut of Lifelong Learning (MENDELU)

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Basic information

Basic information about a final thesis

Type of thesis: Bachelor thesis
Thesis title:Assessment of achenes germination of chosen weed species for Asteraceae family
Written by (author): Bc. Ing. Lenka Františáková
Department: Department of Agrosystems and Bioclimatology (FA)
Thesis supervisor: Ing. Jan Winkler, Ph.D.
Opponent:doc. Ing. Jiří Dvořák, CSc.
Final thesis progress:Final thesis was successfully defended.

Additional information

Additional information about the final thesis follows. Click on the language link to display the information in the desired language.

Language of final thesis:Czech

Czech        English

Title of the thesis:Assessment of achenes germination of chosen weed species for Asteraceae family
Summary:The aim of bachelor work was to find how different locality influence achenes germination of Taraxacum officinale a Tussilago farfara. Collection of achenes of chosen weeds was carried out in different locations. Taraxacum officinale was assessed in locality Lidečko -- orchard, Lačnov -- orchard and Valašská Senice -- orchard. Tussilago farfara was evaluated in locality Lidečko kříž, Lidečko -- garden and Lidečko Račné. The germination of achenes was done in different light conditions. Analyses of variance and method of least square differences (LSD) were used for data assessment. The average of weight of hundert achenes was 0.0731 g by Taraxacum officinale a 0.0462 g by u Tussilago farfara, where the weight differed with locality. The germination of achenes was 74 % by Taraxacum officinale and 40 % by Tussilago farfara. The germination of Tussilago farfara achenes was influenced by achenes maturity. Achenes by both species had higher germination in conditions of day light in comparison with night. This is in correlation with positive fotoblastic reaction of plants. Low germination showed that generative reproduction is important only in localities with favourable conditions for growth and development.
Formula clause:Bachelor work is school work and can be used for commercial purpose only with agreement head of bachelor work and dean of Horticulture faculty of Mendel university of agriculture and forestry Brno.
Key words:Taraxacum officinale, Tussilago farfara, achenes germination, weight of achenes

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