National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Stanovení produkce semen a jejich klíčivosti u vybraných plevelných druhů z čeledi Apiaceae
Bobrovská, Pavla
Diploma thesis was focused on the determination of seed production and their germination of selected species in the Apiaceae family. Selected species were common hogweed (Heracleum sphondylium) and cow parsley (Anthriscus sylvestris). Further was conducted determination weight of thousand seeds of both species and at common hogweed was also determined by the number of seeds containing endosperms, thus seeds potentially capable of germination. Before determining the germination the seeds were stored at different temperature conditions for the long term. Under laboratory conditions was detected in the case of common hogweed very low germination and in the case of cow parsley zero germination. The average seed production per plant was at 888 hogweed seeds and at cow parsley 1 194 seeds. The average weight thousand of seeds was at common hogweed 2,79 grams and at cow parsley 2,12 grams. The endosperms were detected in less than half of the examined seed at each station.

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