论文部分内容阅读
隐性不育材料83121ms，不育株率仅50％。黑芥胞质不育材料CMSN78091不育花不能完全开放，蜜腺小。萝卜胞质不育材料CMSR1409等及其转育后代开花结实性状不良，且低温下叶色黄化，以上3类不育材料在甘蓝实际育种中应用困难。改良的萝卜胞质不育材料CMSR29551等及其转育后代低温下叶色不黄化，在其转育后代中筛选出几份开花结实性状较好的不育系，但多代回交后不育系配制的F1杂种优势弱，应用有局限性。改良的萝卜胞质不育系CMSR3625等，植株性状、开花结实特性及配合力均较好，有较好的应用前景。显性雄性不育系不育性及经济性状优良，已配制出中甘16号和中甘17号两个优良杂种一代，并通过全国农作物品种审定委员会审定。
Recessive infertile material 83121ms, sterile plant rate of only 50%. Black mustard cytoplasmic CMSN78091 sterile flowers can not be completely open, nectary small. Radish cytoplasmic male sterile CMSR1409 and their progenies were poorly tolerant to flowering and fruiting, and had yellowing at low temperature. The above three types of sterile materials were difficult to be used in practical breeding of cabbage. Improved radish cytoplasmic male sterile material CMSR29551 and its progenies were cryogenic leaves at the yellowing of non-yellowing, selected in the progeny of the progeny of several good flowering and fruiting lines of CMS, but not after multiple generations of back The F1 hybrids formulated by breeding lines are weak and have limited application. Improved radish cytoplasmic male sterile line CMSR3625 and so on, plant traits, flowering and fruiting characteristics and combining ability are better, have better application prospects. The male sterility of dominant male sterile lines and their economic traits were excellent. Two excellent hybrids of Zhonggan 16 and Zhonggan 17 were prepared and approved by the National Crop Variety Approval Committee.