三种羊蹄甲属植物物候特性研究  

Phenological characteristics of 3 species of Bauhinia plants

作　　者：周玉洁[1] 闫湘[1] 何妙坤[1] 王智源[1] 黄久香[1] 

机构地区：[1]华南农业大学林学与风景园林学院,广东广州510642

出　　处：《湖南林业科技》2017年第3期27-32,共6页Hunan Forestry Science & Technology

基　　金：广州市科技计划项目(201300000105);越秀区科技计划项目(2015-CY-008);2014年度生态园林产业技术创新战略联盟自设科研课题共同资助

摘　　要：物候特性研究能够深入了解植物的生长特性,为植物栽培养护、分类、杂交育种与园林应用提供参考依据。通过定期定点观测记录的方法,研究了南方地区常用的三种羊蹄甲属观花乔木宫粉紫荆、羊蹄甲与红花羊蹄甲的物候特性,结果表明:(1)三种羊蹄甲属植物的新梢生长均集中于夏季,但持续时间以及生长高峰期稍有差异,红花羊蹄甲与羊蹄甲生长趋势较为一致,而宫粉紫荆受高温影响较为明显,高温期间生长减缓。(2)三种羊蹄甲的花期不同,宫粉紫荆的花期为12-翌年4月,羊蹄甲花期为10-12月,红花羊蹄甲花期最长,为11-翌年5月,三种羊蹄甲属植物的花色、花序、单花花期等稍有不同。(3)综合三种羊蹄甲属植物的新梢生长与开花物候特性,表明红花羊蹄甲与羊蹄甲的亲缘关系更为接近。The research on phenological characteristics gives a deeper understanding of the growth characteristics of plants. It also provides the reference to plant cultivation maintenance, classification, crossbreeding and landscape application. We studied phenological characteristics of three species of Bauhinia plants by fixed-point observation records on a regular basis. Three species were subject to B. variegata 9 B. purpurea, B. x blakeana respectively, three beautiful flower trees widely used in the south area. The results showed that： （ 1 ） New shoots of each species growed in the summer, but the time of duration and growth peak was different slightly. The growth trend of B. X blakeana and B. purpurea were more consistent, but the growth of B. variegata slowed down due to the high temperature. （ 2 ） Florescence of three species were different, florescence of B. variegata was December to April following year, florescence of B. purpurea was October to December, florescence of B. X blakeana was the longest, November to May following year. The color, inflorescence, single florescence of 3 species were different slightly. （3 ） The study of shoots growth and flowering phenology characteristics indicated that genetic relationships of B. x blakeana was close to B. purpurea.

关 键 词：宫粉紫荆 羊蹄甲 红花羊蹄甲 物候特性 新梢生长 开花特性 

分 类 号：S685.99[农业科学—观赏园艺]