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The use of hydroponics for the cultivation of selected Asian vegetables
Nguyen, Huu Viet
The aim of the thesis is to study possibilities and ways of cultivation in hydroponic production in the greenhouse environment, using on typical hydroponics substrates such as rockwool, keramzit or coconut fiber. The objective is to process at least 5 types of plant genotypes typically used in Asia as vegetables. Vegetables have been selected according to a number of criteria such as the rich content of healthy substances, free of pests and diseases, fast and manageable cultivation. The work was focused on botanical and morphological characteristics, agrotechnical claims, capabilities of covered production, as well as the use and content of substances. The goal was to establish an experiment with 5 types of plant genotypes in 4 replicates, which evaluated the development of cultures and selected content (vitamin C, antioxidant capacity, carotenoids, flavonoids, phenols, minerals, etc.) in a greenhouse. The work was focused on growing 20 of Asian vegetable. The whole process of cultivation was focused on ebb and flow hydroponic system using rockwool cubes. Among the targetted species were: Ipomoea aquatica, Brassica juncea var. japonica, Persicaria odorata, Cryptotaenia japonica, Cymbopogon citratus – depending on the possibilities of obtaining adequate propagation material and suitability for a hydroponic system. The data were statistically processed, resulting in recommendations for cultivation. The chosen plants can be cultivated in hydroponic system successfully. Some of the plants showed promising results in the content of substances In conclusion, all tested genotypes of Asian vegetables are suitable for expanding the staple diet.
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Zhodnocení perspektivních genotypů asijských zelenin pro podmínky ČR
Nguyen, Huu Viet
The aim of bachelor thesis was to evaluate prospective development and production of selected genotypes of Asian vegetables. 20 species of plants were evaluated. Botanical and morphological characteristics were described. Agrotechnical demands, the overview of use and the possibility of analysis of contained substances was determined. 5 of these 20 plant species were used for a wider processing. Experiment with 5 species of Asian vegetables was carried out. Three of these species were examined in 2 varietes. Ipomoea aquatica, Persicaria odorata, Perilla frutescens, Perilla frutescens var. crispa , Raphanus sativus var. 'Red Meat', Raphanus sativus var.' Qingluobo ' Brassica rapa subsp . pekinensis varieties ' Beijing Orange Heart'a ' Jing Cui No. 70 ' were grown. Development of culture and yield were evaluated and laboratory analysis was carried out. In order estimate nutritous value such as content of vitamin C, antioxidant capacity , carotenoids etc. Harvested plant material was processed into the food product intended for tasting. Tasting was attended by approximately 40 respondents who used sensory perceptions and questionnaires evaluated individual food products . The obtained data were statistically analyzed. In conclusion species were recommended that are suitable for cultivation and use in the temperate zone with focus on production in the Czech republic.
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