Improved drought resistance by intergeneric graftingin Salicaceae plants under water deficits
文献类型：期刊论文
| 作者 | Han, Qingquan1,2; Luo, Jianxun3; Li, Zhijun4; Korpelainen, Helena5; Li, Chunyang1
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| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 155页码:217-225 |
| 关键词 | Intergeneric grafting Drought resistance Photosynthesis Water use efficiency Non-structural carbohydrates |
| ISSN号 | 0098-8472 |
| DOI | 10.1016/j.envexpbot.2018.07.003 |
| 英文摘要 | In this study, intergeneric grafting was employed between Populus cathayana and Salix rehderiana to investigate the grafting compatibility of the two Salicaceae plants and to reveal whether grafting can improve their drought resistance. Under different grafting combinations (P. cathayana scion with P. cathayana rootstock, P/P; P. cathayana scion with S. rehderiana rootstock, P/S; S. rehderiana scion with S. rehderiana rootstock, S/S; and S. rehderiana scion with P. cathayana rootstock, S/P), the survival and growth rate, biomass accumulation and allocation, photosynthetic traits, carbon isotope composition (delta C-13), relative water content (RWC) and nonstructural carbohydrates (NSCs) were measured. The results showed that the grafting compatibility between P. cathayana and S. rehderiana was very high, as the survival rates ranged from 76% to 100% under different grafting combinations. Drought significantly decreased growth, biomass accumulation, photosynthetic pigment contents, net photosynthesis rates (P) and RWC, and increased delta C-13 in all grafting combinations. Under drought stress, biomass accumulation, total chlorophyll, transpiration rate (E) and P-n were higher in P/P and P/S than in S/S and S/P. Compared with P/P, the growth rate, biomass accumulation, root/aboveground ratio (R/A ratio), carotenoid, RWC, starch and total soluble sugar (TSS) of P/S were less affected by drought. The height growth rate (GRH), R/A ratio, carotenoid, chlorophyll a, total chlorophyll, WUEi and TSS of S/P were lower than those of S/S under water-limited conditions. Moreover, a principal component analysis indicated that P/S and S/S had higher drought resistance than P/P and S/P under water deficits. The used method allows combining specific advantageous traits from P. cathayana and S. rehderiana, which may be a highly useful tool to enhance drought resistance in the cultivation of Salicaceae plants. |
| 语种 | 英语 |
| WOS记录号 | WOS:000446289500021 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.imde.ac.cn/handle/131551/23989]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Li, Chunyang |
| 作者单位 | 1.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 3.Sichuan Acad Forestry, Chengdu 610081, Sichuan, Peoples R China 4.Tar Univ, Coll Life Sci, Alar 843300, Peoples R China 5.Univ Helsinki, Dept Agr Sci, Viikki Plant Sci Ctr, POB 27, FI-00014 Helsinki, Finland |
| 推荐引用方式 GB/T 7714 | Han, Qingquan,Luo, Jianxun,Li, Zhijun,et al. Improved drought resistance by intergeneric graftingin Salicaceae plants under water deficits[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2018,155:217-225. |
| APA | Han, Qingquan,Luo, Jianxun,Li, Zhijun,Korpelainen, Helena,&Li, Chunyang.(2018).Improved drought resistance by intergeneric graftingin Salicaceae plants under water deficits.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,155,217-225. |
| MLA | Han, Qingquan,et al."Improved drought resistance by intergeneric graftingin Salicaceae plants under water deficits".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 155(2018):217-225. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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