番茄ps-2雄性不育品系的初步观察

The Preliminary Study on ps-2 Male Sterile Lines in Tomato

对从保加利亚引入的含有ps 2雄性不育基因的番茄雄性不育品系 (CMC1ps2和 2 2 2 )在田间自然条件下进行初步观察 ,结果表明其不育性状表现稳定 ,雄蕊、花粉发育均正常 ,花药不开裂 ,田间自交坐果率 5 .2 5 %～ 10 .83 %,其中正常果率只有 3.8%～ 6 .2 %,利用人工自交可获得 10 0 %的不育后代。

Some lines with ps-2 male sterile gene were introduced from Bulgaria. The results observed in the open field proved that their sterility was stable without emasculation. The plants had normal stamen and pollen, and indehiscent anther. The percentage of selfing fruits was about5.25%-10.83%. Among them, the normally developed fruits with seeds occupied only 3.8%-6.2%. Furthermore, the male sterile lines can be maintained easily by artificial pollination.