• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2017 Fiscal Year Final Research Report

The comprehensive observation of water use in xylem with transplants in woody species

Research Project

  • PDF
Project/Area Number 16K18713
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Forest science
Research InstitutionHokkaido University

Principal Investigator

Umebayashi Toshihiro  北海道大学, 農学研究院, 博士研究員 (20585997)

Research Collaborator SANO Yuzou  
UTSUMI Yasuhiro  
KUSUMOTO Dai  
FUKUDA Kenji  
Project Period (FY) 2016-04-01 – 2018-03-31
Keywords水分生理 / 根切り / 枯死 / 脆弱性曲線
Outline of Final Research Achievements

This study was conducted to reveal the relationship between the loss of hydraulic conductivity in xylem after transplants and the mortality ratio among species. The vulnerability curve was drawn to explain the relationship between water stress and the loss of hydraulic conductivity among species. Dead saplings with increasing the amount of pruned roots were detected in ring-porous species forming long vessels and in species that was more vulnerable to water-stress-induced embolisms, and the conductivity in these species significantly decreased with the treatment of root pruning. On the other hand, in Japanese cedar of high resistance to water-stress-induced embolisms, the loss of hydraulic conductivity was induced regardless the amount of pruned roots. This result suggests that the water in xylem may be used to form the new roots after transplants.

Free Research Field

樹木生理生態学

URL: 

Published: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi