Effect of Aqueous Extracts from Weed Species on Germination and Initial Growth in Raphanus sativus L
| Autor: | Zenovia Olteanu, Anisoara Stratu, Andrei Lobiuc |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Setaria verticillata
biology Raphanus Medicine (miscellaneous) Forestry Plant Science Echinochloa Horticulture biology.organism_classification Agricultural and Biological Sciences (miscellaneous) Biochemistry Genetics and Molecular Biology (miscellaneous) lcsh:S1-972 Hypocotyl Germination Botany lcsh:Agriculture (General) Cirsium arvense Weed lcsh:Science (General) Agronomy and Crop Science Convolvulus lcsh:Q1-390 |
| Zdroj: | Notulae Scientia Biologicae, Vol 7, Iss 4, Pp 464-470 (2015) |
| ISSN: | 2067-3264 2067-3205 |
| Popis: | The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L. The following indicators have been analyzed: indices of germination (the germination percentage; the speed of germination; the speed of accumulated germination and the coefficient of germination rate), the length of the root and hypocotyls, the pH of aqueous extracts, the UV-Vis absorption spectra of aqueous extracts. The results of the investigations showed the following aspects: the aqueous extracts reduced the values of calculated germination indices and root growth in the first ontogenetic stages of the test species; the pH of the extracts was slightly acid to neutral. Qualitative spectrophotometric analysis indicated the possible presence of phenolic and organic compounds in the extracts. C. arvense, S. verticillata and E. crus-galii presented the most pronounced effect on germination and growth processes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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