Research Output

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Paper
1976

Viability and fertility of vacuum dried pollen: IUFRO Conference

Ahlgren, C. E. & Ahlgren, I. F., 1976.

Research output: Contribution to conferencePaper

1969

Inter- and intraspecific grafting and breeding of five-needle pines: 9th Lake States Forest Tree Improvement Conference

Ahlgren, C. E., 1969, p. 23-24. 2 p.

Research output: Contribution to conferencePaper

1966

Ecological research in changing forests of wilderness areas: 6th World Forestry Congress

Ahlgren, C. E., 1966, p. 2479-2484. 6 p.

Research output: Contribution to conferencePaper

1963

Some basic ecological factors in prescribed burning in northeastern Minnesota: Second Tall Timbers Fire Ecology Conference

Ahlgren, C. E., 1963, p. 143-149. 7 p.

Research output: Contribution to conferencePaper

1959

A step beyond: Logbook, Canadian Timber Producers Association

Ahlgren, C. E., 1959.

Research output: Contribution to conferencePaper

Vegetational development following burning in the northern coniferous forest of Minnesota: Proceedings, Society of American Foresters

Ahlgren, C. E., 1959, p. 21-22. 2 p.

Research output: Contribution to conferencePaper

1956

Research into the human element in wilderness use: Proceedings, Society of American Foresters

Stone, G. & Taves, M. J., 1956, p. 26-32. 7 p.

Research output: Contribution to conferencePaper