English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Biomass partitioning in response to soil drought: A pot experiment with Prunus dulcis trees during four years

Heilmeier, H., Erhard, M., Wartinger, A., Brinckmann, E., Horn, R., & Schulze, E.-D. (2001). Biomass partitioning in response to soil drought: A pot experiment with Prunus dulcis trees during four years. Basic and Applied Ecology, 2(2), 165-175.

Item is

Files

show Files
hide Files
:
BGC0349.pdf (Publisher version), 106KB
 
File Permalink:
-
Name:
BGC0349.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Biogeochemistry, MJBK; )
MIME-Type / Checksum:
application/octet-stream
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Heilmeier, H., Author
Erhard, M., Author
Wartinger, A., Author
Brinckmann, E., Author
Horn, R., Author
Schulze, E.-D.1, Author           
Affiliations:
1Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497751              

Content

show
hide
Free keywords: Almond Fruit trees Woody species Drought stress Allocation Leaf area Specific root length Root length density Root-growth Water-use Eucalyptus-globulus Carbon allocation Peach-trees Seedlings Plants Nutrients Dynamics Exchange
 Abstract: Growth and biomass partitioning of almond trees [Prunus dulcis (Miller) D.A.Webb] were investigated in a semi-controlled pot experiment under arid conditions in the Negev Desert (Israel). Single trees of two varieties grafted on a local rootstock were grown for 1 to 4 years in pots of 3 in diameter and 1, 2 and 3 m depth, which resulted in 7, 14 and 21 m(3) soil volume. The pots were watered to field capacity once per year at the beginning of each growing season. Thus the plants received different amounts of water in relation to their biomass and leaf area as a function of their age and pot volume. This procedure resulted in different rates of soil drying and different stages of water deficit throughout the season, which allowed an investigation of the interactive effect of both seasonally varying water status and atmospheric conditions for a woody species in large soil volumes. We primarily tested whether a progressive reduction in the amount of water applied to the trees in relation to their leaf area would increase (1) biomass partitioning in favour of roots, especially fine roots, (2) the ratio of fine root length to leaf area. Neither biomass partitioning into leaves nor fine roots was significantly influenced by the amount of water supplied. There was no effect of water supply on the relationship between fine root length and finch root biomass (specific root length) either. Consequently, the relationship between length of fine roots and leaf area was not dependent on the amount of available water. The constant relationship between most of the biomass partitioning parameters examined in spite of the great range in water availability and over several years of growth is discussed as the result of the seasonal variation in the interaction of water supply and demand on tree growth and biomass distribution. [References: 31]

Details

show
hide
Language(s):
 Dates: 2001
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: BGC0349
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Basic and Applied Ecology
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Jena, Germany : Urban & Fischer
Pages: - Volume / Issue: 2 (2) Sequence Number: - Start / End Page: 165 - 175 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/110975506072219
ISSN: 1439-1791