The type, position and age effect on the cutting reproduction of Picea crassifolia and its rooting mechanism in the Qilian Mountains
文献类型：期刊论文
| 作者 | Kang, Jianjun1,2; Zhao, Wenzhi1; Zhao, Ming2; Li, Guangyu2; Zhang, Jiqiang2; Zhang, Zhisheng3 |
| 刊名 | JOURNAL OF FORESTRY RESEARCH
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 26期号:4页码:993-1002 |
| 关键词 | Picea crassifolia Kom Type Position and age effect Cutting reproduction Rooting rate Hormones Organic substances |
| ISSN号 | 1007-662X |
| DOI | 10.1007/s11676-015-0091-3 |
| 通讯作者 | Zhao, Wenzhi(zhaowzh@lzb.ac.cn) |
| 英文摘要 | Picea crassifolia Kom, a perennial arbor species is recognized as one of the most adaptable plants found to date in Qilian Mountains. To explore the cutting reproduction technology of P. crassifolia and reveal its rooting mechanism, cuttings of P. crassifolia with different cutting types (softwood, hardwood and root), positions (top, upper, middle and bottom) and ages (7, 10, 15, 20, 25 year-old) were cultivated in a field experiment. One-year old softwood and hardwood cuttings were collected from 7-, 10-, 15-, 20-, and 25 year-old healthy ortets to analyze the changes from endogenous hormones and organic nutrients. Results indicate that the softwood cuttings (0.5-1.0 cm in diameter) from upper branches of 15 year-old ortets shows better growth performance by improving rooting indexes, including a significant increase in rooting rate and a decrease in basal rot rate. Concomitantly, increasing rooting quantity and root length also increased. It is noteworthy that the high rooting rate of P. crassifolia cuttings due to its ability to accumulate high concentrations of indole-3-acetic acid (IAA) and total carbon (TC) rather than abscisic acid (ABA) and total nitrogen (TN). The rooting rate was mainly regulated by the IAA/ABA and TC/TN ratio. In summary, our results suggest that the softwood cuttings (0.5-1.0 cm in diameter) from upper branches of 15 year-old P. crassifolia can be considered as an effective strategy to improve cutting rooting rate, and the IAA/ABA and TC/TN ratio was one of the main factors limiting the cutting rooting rate of P. crassifolia. |
| 收录类别 | SCI |
| WOS关键词 | SHOOT CUTTINGS ; XYLEM SAP ; ABIES ; GROWTH |
| WOS研究方向 | Forestry |
| WOS类目 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000363255100022 |
| 出版者 | NORTHEAST FORESTRY UNIV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557207 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Wenzhi |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Inland River Basin Ecohydrol, Linze Inland River Basin Res Stn, Lanzhou 730000, Gansu, Peoples R China 2.Gansu Res Acad Forestry Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 3.Adm Gansu Qilian Mt Natl Nat Reserve, Haxi Nat Protect Stn, Wuwei 733000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Jianjun,Zhao, Wenzhi,Zhao, Ming,et al. The type, position and age effect on the cutting reproduction of Picea crassifolia and its rooting mechanism in the Qilian Mountains[J]. JOURNAL OF FORESTRY RESEARCH,2015,26(4):993-1002. |
| APA | Kang, Jianjun,Zhao, Wenzhi,Zhao, Ming,Li, Guangyu,Zhang, Jiqiang,&Zhang, Zhisheng.(2015).The type, position and age effect on the cutting reproduction of Picea crassifolia and its rooting mechanism in the Qilian Mountains.JOURNAL OF FORESTRY RESEARCH,26(4),993-1002. |
| MLA | Kang, Jianjun,et al."The type, position and age effect on the cutting reproduction of Picea crassifolia and its rooting mechanism in the Qilian Mountains".JOURNAL OF FORESTRY RESEARCH 26.4(2015):993-1002. |
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来源：寒区旱区环境与工程研究所
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