Breeding process and characteristics of the new Brassica campestris L. cultivar 'Shizukei No.7'
2007
Furuya, M.(Shizuoka-ken. Agricultural Experiment Station, Iwata (Japan)) | Suzuki, M. | Nakashima, T. | Nishiyama, Y.
1. The new cultivar 'Shizukei No.7' was bred from the progenies obtained by crossing 'Shinwakimizuna' (the variety registration number 3753rd ) as the mother plants and 'Zairai B3' as the pollen parent, and by backcrossing them with the latter. The progenies were selected by club root resistance test. The mother plant 'Shinwakimizuna' was characterized by club root resistance and the harvest time in the last ten days in January. The pollen parent 'Zairai B3' was selected as a pedigree of local cole crop variety characterized by the good growth nature and good food taste as well as the harvest time in March. 2. The new cultivar 'Shizukei No.7' showed the resistance to 'Clubroot' caused by Plasmodiophora brassicae Wor., the most important disease of crucifer. It was confirmed that the new cultivar had the good growing property and satisfory yield in the local fields. Although the pesticide of application against club root was unnecessary, cultural control procedures were needed in the fields where the disease occurred in severe form.
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