Acorn Production in Northern Red Oak Stands in Northeastern Pennsylvania
Acorn Production in Northern Red Oak Stands in Northeastern Pennsylvania

Author: Luther R. Auchmoody

Publisher:

Published: 1993

Total Pages: 5

ISBN-13:

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S2Northern red oak acorn production was measured in 21 maturing stands on good sites in northwestern Pennsylvania. The number of acorns produced per acre varied from a low of 7,000 in a poor seed year to nearly 273,000 in a bumper year. Some acorns were produced in all years. In no year was there consistently good acorn production at all areas, nor was there a good crop for more than 2 consecutive years at any location. Acorn production was not related to the mean diameter and range of basal area of red oak trees in the experimental stands. Freezing temperatures when oaks were in flower was a major factor affecting acorn production on the Allegheny Plateau.S3.

Survival of Northern Red Oak Acorns After Fall Burning
Survival of Northern Red Oak Acorns After Fall Burning

Author: L. R. Auchmoody

Publisher:

Published: 1993

Total Pages: 12

ISBN-13:

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Survival of recently fallen northern red oak acorns after exposure to a cool fall burn was determined on experimental plots in northwestern Pennsylvania. The fire consumed the leaf litter and fine woody material of the forest floor and was considered as a typical fall burn for this region. No acorns were consumed by the fire but some were charred. Between 40 and 49 percent of the acorns contained in the litter were killed. The fire was not hot enough to kill Curculio weevil larvae within the acorns. Burned acorns infested with Curculio that survived the fire had 20 percent lower germination rates than unburned acorns.