The use of grafted seedlings increases the success of conservation translocations of Manglietia longipedunculata (Magnoliaceae), a critically endangered tree

  • Authors: Ren, Hai; Liu, Hong; Wang, Jun; Yuan, Lianlian; Cui, Xiaodong; Zhang, Qianmei; Fu, Lin; Chen, Hongfeng; Zhong, Wenchao; Yang, Keming; Guo, Qinfeng
  • Publication Year: 2016
  • Publication Series: Scientific Journal (JRNL)
  • Source: Oryx
  • DOI: 10.1017/S0030605315000423

Abstract

The distribution of the Critically Endangered tree Manglietia longipedunculata, of which there are only known wild individuals, is restricted to the Nankunshan Nature Reserve in South China. The species is threatened with extinction because of its small number of individuals and the impediments to its reproduction (a combination of protogyny, a short period of stigma receptivity, and a lack of efficient pollinators). To reduce the risk of extinction we conducted two conservation translocation trials: one to augment the sole extant population, and the other km north of the current range. The latter trial was a conservation introduction in which the goals were to increase the population and to buffer against the effects of climate change. We used emerged and grafted seedlings as translocation materials. We compared the survival, growth, and eco-physiological properties of emerged and grafted seedlings at the two sites. The survival rate and growth were higher for grafted seedlings than for emerged seedlings at both sites. Eco-physiological data indicated that grafted seedlings at both sites were as efficient or more so in light and water usage than wild individuals, whereas emerged seedlings were less efficient. Grafted seedlings attained the flowering stage sooner than emerged seedlings. Our study suggests that grafting can facilitate the augmentation and establishment of new populations of  M. longipedunculata and perhaps of new populations of other threatened species facing reproductive difficulties and climate change.

  • Citation: Ren, Hai; Liu, Hong; Wang, Jun; Yuan, Lianlian; Cui, Xiaodong; Zhang, Qianmei; Fu, Lin; Chen, Hongfeng; Zhong, Wenchao; Yang, Keming; Guo, Qinfeng 2016. The use of grafted seedlings increases the success of conservation translocations of Manglietia longipedunculata (Magnoliaceae), a critically endangered tree. Oryx, Vol. 50(03): 9 pages.: 437-445. DOI:10.1017/S0030605315000423
  • Keywords: China, conservation introduction, ecological restoration, Manglietia longipedunculata, plant conservation technique, point endemic species, threatened species
  • Posted Date: September 8, 2016
  • Modified Date: February 10, 2017
  • Requesting Print Publications

    Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

    Please make any requests at pubrequest@fs.fed.us.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.