Abstract
Selected cultivars of Asian brassicacean vegetables were evaluated for their yield potential and susceptibility to bacterial infection. Chinese broccoli, two cultivars of Chinese cabbage (‘Dwarf milk cabbage’ and improved ‘Tahtsai’), and mizuna were grown in the conditions of the Czech Republic. Morphological and yield parameters for the field conditions (plant height, plant diameter, and marketable weight) were verified. In addition, genotypes were tested for resistance to black rot [<em>Xanthomonas campestris</em> pv. <em>campestris</em> (Xcc)] at the planting stage. The results show that a very promising genotype of mizuna, which yielded best (1,478 g per plant). Chinese cabbage (cultivar ‘Dwarf milk cabbage’) also showed high yield values (2,839 g per plant), especially when compared to the reference value for Napa cabbage. Chinese Cabbage 1 (‘Dwarf milk cabbage’) and mizuna also showed a low susceptibility to infection by bacterial black rot at the planting stage. Both cultivars reached Level 2 (median) of infection, which corresponds to the extent of the symptoms on 25% of the leaf surface.
Highlights
For some time, there has been a growing interest in the enrichment of the vegetable species composition offered for human consumption, which is facilitated by an increased awareness of foreign assortments
The greatest weight was achieved by Chinese Cabbage 1, the value of which was significantly higher than Chinese Cabbage 2 and Chinese broccoli
It can be stated that mizuna achieved the highest plant height, followed by Chinese broccoli and Chinese Cabbage 1
Summary
There has been a growing interest in the enrichment of the vegetable species composition offered for human consumption, which is facilitated by an increased awareness of foreign assortments. The results of a project carried out at the University of Wageningen in 2007–2010 show that the vegetable market is changing. Consumers require more new vegetables, new exotic products and forgotten types of vegetables [2]. 130 species of cultivated crops, especially vegetables and fruit trees, come from there [3]. Vegetable production is a very important agricultural sector in China. It has been reported that the consumption of vegetables per person in China is higher compared to Western countries [4]
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