2012"園冶杯"國際競賽優秀作品獲獎者訪談（十二）
Introduction：Handeliodendron Bodinieri is one of the Relict single species in the relict limestone area of China. Its habitats are special， natural regeneration is weakness and lack of resources. Because of human reasons， its living environment has been seriously damaged， which make it into the endangered status， so it is listed as the national key protected wild plants. Its ability to reproduce is poor in the natural state， the fragmentation of populations and reproductive and breeding ability recession may be the internal reasons lead to its endangered， so， explore the reason why it infertility and endangered mechanism is very significant to preserve its germplasm resources and expand its populations. Do the research work of its Flowering phenology flower gender， flower morphological characteristics， flowering dynamics， Pollen and pollen ovule ratio， the OCI and so on， in order to explore its biological characteristics， and then provide the basis for its protection and Utilization. Experiment results show that： 1. Handeliodendron Bodinieri bloom once a year. The flowering time is concentrated in late April to mid-May， the beginning and length of it is affected by the local weather. 2. Handeliodendron Bodinieri flower's gender is hermaphrodite in the structure， it has stamens and pistils. Stamens in female flowers is flat and can't produce pollen， so it can not fertility； pistils in male flowers is small， the ovules in it are small too； Hermaphrodite flowers only appear in the tree which open male flower， not much account， mixed in the male flowers， mostly in the normal development of flowering， the stamens and pistil developed good. 3. Handeliodendron Bodinieri male flower often opens two to three days till it flops， female and hermaphrodite flowers open two to three days too till their petals flop. 4. Handeliodendron Bodinieri male flower's Pollen viability between bud and first day is similar， decreased obviously in the second day. The stamens in female do not have pollen； hermaphrodite flowers' Pollen viability in the first day is lower than male's. Male flower's stigma can not be pollinated； female flower's Stigma receptivity from the bud stage to the second day of the flowering. 5. Handeliodendron Bodinieri each male flower has about 51461 Pollens， each female flower has about 5.75 ovules， pollen ovule ratio is 8949.7， according to Cruden's standard， its breeding system is obligate outcrossing type. 6. The OCI of Handeliodendron Bodinieri is 4.According to the Dafni standard， the species' breeding system is outcrossing， partly self-compatible and need pollinators.
相關信息詳見：
2012"園冶杯"風景園林（畢業作品、論文）國際競賽獲獎作品展示專題
相關鏈接：
編輯：liang
相關閱讀
北京首發森林體驗指數
很多森林看起來大同小異，但因風速、濕度、負氧離子濃度等的不同，游憩的感受相差很大。到底哪片森林更適合您的出游需求呢？昨天，北京首次上線森林體驗指數，為市民走進自然踏青賞花提供參考【詳細】
“十四五”期間 四川力爭建成200個體育公園
通過重點推動體育公園建設、綠道建設等場地設施建設，充分利用城市金角銀邊建設便民利民的場地設施等手段，扎實推進健身場地設施補短板工作，完善四級全民健身設施體系，進一步滿足人民群眾15分鐘健身圈需求【詳細】
河北定州加快創建國家園林城市
定州把創建國家園林城市、籌辦河北省第七屆（定州）園林博覽會兩項工作做為彰顯特色、打造品牌的重要路徑，做為提升文化、惠及民生的重要載體，圍繞城市框架拉伸、文旅產業發展、人居環境提升、新興產業布局做文章【詳細】
探營廣州園博會：移步換景賞雅色 繡球簇擁廣州城
第30屆廣州園林博覽會將于3月24日至4月2日舉行，3月22日，記者提前探營廣州園博會多個會場花境，發現富有傳統和現代元素的造景、包含多個區域特色的小園圃等已逐漸展露真容【詳細】
