Studies on establishment of tissue culture system and its utilizationfor breeding in ruzigrass (Brachiaria ruziziensis)
INTRODUCTION Brachiaria is tropical forage grasses, which has been cultivated in tropical and subtropical region as pasture mainly. The Brachiaria genus has about 100 species recognized in the world. At present, some species such as B. brizantha (A. Rich.) Stapf, B. decumbens Stapf, B. humidicola (Rendle) Schweick and B. ruziziensis Germain &Evrard have been important commercially because these species have many positive attributes, e. g. , tolerance to acid soil, high productivity and high quality forage. Thus, these cultivars are also important as breeding material for development of Brachiaria breeding. In Brachiaria breeding, besides productivity and digestibility, persistence, adaptation to infertile acid soil and antibiotic resistance to spittlebugs are also important breeding objectives. However, it is very difficult to develop a Brachiaria breeding program through a traditional hybridization approach because almost all species are predominantly facultative apomictic tetraploids. Therefore, it is proposed that B. ruziziensis (ruzigrass) should be useful for Brachiaria breeding programs based on tissue culture system because this species has sexuality.
Genki Ishigaki Takahiro Gondo Kazuhiro Suenaga Ryo Akashi
Faculty of Agriculture,Univ.of Miyazaki,Miyazaki 889-2192,Japan Frontier Science Research Center,Univ.of Miyazaki 889 -2192,Japan Japan International Research Center for Agricultural Sciences,Tsukuba,Ibaraki 305 -8686,Japan
国际会议
陕西杨凌
英文
140-141
2010-10-09（万方平台首次上网日期，不代表论文的发表时间）