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张珍贤,赵毅,张鹏,张洁,李泓池,彭开锋,冷其霖,龚云,蔡传涛.密花豆扦插苗与种子苗的生长及光合特性研究[J].湖南中医药大学学报,2022,42(2):195-199[点击复制] |
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| 密花豆扦插苗与种子苗的生长及光合特性研究 |
| 张珍贤,赵毅,张鹏,张洁,李泓池,彭开锋,冷其霖,龚云,蔡传涛 |
| (中国科学院西双版纳热带植物园, 热带植物资源可持续利用重点实验室, 云南 昆明 650223;株洲千金药业股份有限公司, 湖南 株洲 412007;中国科学院西双版纳热带植物园, 热带植物资源可持续利用重点实验室, 云南 昆明 650223;中国科学院核心植物园, 云南 勐腊 666303) |
| 摘要: |
| 目的 探究密花豆（Spatholobus suberectus Dunn）扦插苗与种子苗的生长动态和光合特性差异。方法 通过盆栽及大田栽培试验，对同龄密花豆扦插苗与种子苗的株高、基径、成活率及光合特性进行对比分析。结果 在盆栽及大田试验中，密花豆扦插苗与种子苗的株高和基径均呈直线增大趋势，且种子苗的长势优于扦插苗。盆栽及大田条件下，密花豆种子苗的成活率分别为80%和86%，高于扦插苗的70%和62%。密花豆种子苗的最大净光合速率在盆栽及大田试验中比扦插苗高44.71%和54.65%，且种子苗的表观量子效率及光饱和点均高于扦插苗，表明密花豆种子苗较之扦插苗具有较高的光合潜能和较强的光适应性。结论 密花豆种子苗的株高和基径的生长量及光合潜力均优于扦插苗，其移栽成活率也高于扦插苗。 |
| 关键词: 密花豆 扦插苗 种子苗 生长 光响应曲线 光合特性 |
| DOI：10.3969/j.issn.1674-070X.2022.02.005 |
| 投稿时间：2021-10-25 |
| 基金项目:院-企合作项目（2020-KQY-0534）；中国科学院"一三五"项目（2017XTBG-F05）。 |
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| Study on the growth and photosynthetic characteristics of cutting seedlings and seed seedlings of Spatholobus suberectus |
| ZHANG Zhenxian,ZHAO Yi,ZHANG Peng,ZHANG Jie,LI Hongchi,PENG Kaifeng,LENG Qilin,GONG Yun,CAI Chuantao |
| (CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China;Zhuzhou Qianjin Pharmaceutical Co., Ltd., Zhuzhou, Hunan 412007, China;CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China;Core Botanical Garden of Chinese Academy of Sciences, Mengla, Yunnan 666303, China) |
| Abstract: |
| Objective To explore the differences in growth dynamics and photosynthetic characteristics between cutting seedlings and seed seedlings of Spatholobus suberectus. Methods The plant height, stem diameter, survival rate and photosynthetic characteristics of cutting seedlings and seed seedlings of Spatholobus suberectus of the same age were compared and analyzed in pot and field cultivation experiments. Results In the pot and field experiments, the plant height and stem diameter of both cutting seedlings and seed seedlings of Spatholobus suberectus showed a linear increasing trend, and the growth of seed seedlings was better than that of cuttings. Under the the pot and field experimental conditions, the survival rate of the seed seedlings was 80% and 86%, respectively, which was higher than that of the cutting seedlings (70% and 62%). In the pot experiment and field experiment, the maximum net photosynthetic rate of the seed seedlings of Spatholobus suberectus was 44.71% and 54.65% higher than that of the cutting seedlings. Meanwhile, the apparent quantum yield and light saturation point of the seed seedlings were both greater than those of the cutting seedlings. These results indicated that the seed seedlings had higher photosynthetic potential and stronger light adaptability than the cutting seedlings. Conclusion The plant height, stem diameter and photosynthetic potential of Spatholobus suberectus are greater in seed seedlings than in cutting seedlings, and the transplanting survival rate of the former is larger. |
| Key words: Spatholobus suberectus cutting seedling seed seedling growth light response curve photosynthetic characteristic |
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