Leaf area development on different shoot types in a young Aspen stand and its effect upon production

Authors

D.F.W. Pollard

Document Type

Article

Journal/Book Title/Conference

Canadian Journal of Botany

Volume

48

Issue

10

First Page

1801

Last Page

1804

Publication Date

1970

Abstract

Different shoot types in aspen crowns carried leaves of different ages; leaders continued to produce leaves until early August and always carried some young leaves, whereas short shoots completed development by mid-June. Development of foliage on long shoots was intermediate between that on leaders and short shoots. Leaf area index of the 6-year-old stand reached a maximum of 2.4, of which 2.1 was contributed by short-shoot foliage. The rest was formed by leaders and long shoots. Young leaves on leaders and long shoots were not sufficient to influence total production in the stand appreciably, even though young aspen leaves may have high photosynthetic efficiencies. These young leaves could, however, influence height growth and lateral development of the canopy.

Recommended Citation

Pollard, D.F.W. 1970. Leaf area development on different shoot types in a young Aspen stand and its effect upon production. Canadian Journal of Botany 48(10):1801-1804.