通过萝卜远缘杂交创建不育源，再经过回交转育而选育出异源胞质不育系034a。
Alloplasmic male sterile line 034a was breeded by using method of distant hybridization and backcross.
对改良型萝卜胞质大白菜雄性不育系及其保持系的游离氨基酸、糖、激素和叶绿素含量进行了比较研究。
Contents of free amino acids, sugars, phytohormones, chlorophyll were compared between cold-tolerant OguraCMS Chinese cabbage lines and their maintainers.
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