Skip to main content

Early Selection for Drought Tolerance and Relationship to Dry Weight Partitioning in Black Spruce Families

Buy Article:

$29.50 plus tax (Refund Policy)

Black spruce (Picea mariana [Mill.] B.S.P.) families varied in growth rate on drier but not on moister sites as a result of water stress. To determine the relationship between growth and its partitioning, and drought tolerance, seedlings dry weight of 7 full-sib black spruce families was compared for 2 growing seasons under well-watered conditions and drought in a nursery with that of 16-yr field height growth on dry and moist sites. Family variation in dry weight partitioning among roots, shoots, stems, and needles was also compared. Family ranks in seedling total dry weight under droughted conditions correlated significantly with family ranks in field height growth after 16 yr on the dry, but not moist sites. Two families (22 and 43) exhibited superior growth rates under drought, but not well-watered conditions compared with 3 other families (25, 46, and 50), whose growth declined significantly under drought stress. The greater total dry weight growth of families 22 and 43 under drought was the result of sustained leaf growth. By contrast, less vigorous families 25, 46, and 50 allocated more dry weight to the roots at the expense of needle and stem growth when droughted. Families did not differ in dry weight partitioning under well-watered conditions, however. These early growth and partitioning responses to drought stress may therefore provide criteria for selecting drought tolerant, faster growing genotypes for drier, but not moister, sites. For Sci. 41(1):168-180.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Keywords: Allocation; Picea mariana; drought stress; growth

Document Type: Journal Article

Affiliations: Research Scientist, P.O. Box 6596, JKPWB--Jakarta, Indonesia

Publication date: 1995-02-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
  • Submit a Paper
  • Membership Information
  • Author Guidelines
  • Podcasts
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more