康向阳
Kang Xiangyang
人物简介
世界首次获得杜仲三倍体，选育“京仲”系列新品种。
事迹
杜仲雌雄异株，且为单科、单属、单种，杂交育种效果有限。北京林业大学康向阳团队另辟蹊径，从多倍体育种入手，历经近二十年、几代研究生的接力攻关，发明“树上花芽非离体高温处理”装置，攻克配子染色体加倍难题，于世界上首次获得杜仲三倍体(2n=3X=51)新种质。
由此选育出“京仲1~8号”等新品种：平均高生长比二倍体快30%以上，叶面积与叶片厚度大幅增加，叶片含胶量及桃叶珊瑚苷、绿原酸、京尼平苷等药效成分含量达普通良种的1.5~2倍。相关成果发表于国际育种期刊，获国家科技进步二等奖与多项国家植物新品种权，为杜仲叶用制胶、制药提供了高产优质的种源。
重要活动 / 事件
- 发明“树上花芽非离体高温处理”染色体加倍装置
- 8个“京仲”三倍体品种获国家植物新品种权
- 在河北威县召开三倍体新品种观摩研讨会
代表贡献
- 世界首次获得杜仲三倍体新种质
- 选育“京仲1~8号”新品种
- 生长快30%以上、药效成分1.5~2倍
- 获国家科技进步二等奖
Profile
Achieved the world’s first Eucommia triploids and bred the “Jingzhong” cultivar series.
Story
Eucommia is dioecious and forms a family, genus and species all its own, limiting cross-breeding. The team of Kang Xiangyang at Beijing Forestry University took another route — polyploid breeding — and after nearly two decades and generations of graduate students, invented an on-tree, non-detached high-temperature bud device, solved gamete chromosome doubling, and produced the world’s first Eucommia triploid (2n=3X=51) germplasm.
From it came the “Jingzhong 1—8” cultivars: 30%+ faster height growth, far larger and thicker leaves, and leaf gum plus active compounds (aucubin, chlorogenic acid, geniposidic acid, etc.) reaching 1.5—2× those of common cultivars. Published in international breeding journals, the work won a National S&T Progress Award (2nd Prize) and multiple plant-variety rights.
Milestones
- Invented an on-tree, non-detached high-temperature bud-doubling device
- 8 “Jingzhong” triploid cultivars granted plant-variety rights
- Held a cultivar field workshop in Wei County, Hebei
Key Contributions
- World’s first Eucommia triploid germplasm
- Bred the “Jingzhong 1—8” cultivars
- +30% growth, 1.5—2× active compounds
- National S&T Progress Award (2nd Prize)
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