Effect of Cone Production on Branch, Needle, and Xylem Ring Growth of Sierra Nevada Douglas-Fir

Shoot and needle length in the upper crown of 30- to 50-year-old cone-bearing Douglas-fir were reduced in years of cone production, whereas on nonbearing trees they were unchanged. Xylem ring width at breast height in cone-bearers was reduced in years of heavy cone crops but was apparently unchanged in years of light crops. Growth was reduced only during the year that cones were produced. Peduncles remained on the tree and could be dated and used to determine the year and size of past cone crops.

• Publication year

  1969

• Venue

  Forestry sciences

• Publication date

  1969-06-01

• Fields of study

  Biology, Environmental Science

• Identifiers
  DOI 10.1093/FORESTSCIENCE/15.2.171
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• No references are available for this paper.

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