Stem anatomy variation in cottonwood

A.N. Foulger; J. Hacskaylo

Treesearch

Stem anatomy variation in cottonwood

Informally Refereed

Authors:

A.N. Foulger, J. Hacskaylo

Year:

1968

Type:

Research Paper

Station:

Northern Research Station

Source:

In: Proceedings of the Eighth Lake States Forest Tree Improvement Conference; Res. Pap. NC-23. St. Paul, MN: U.S. Forest Service, North Central Forest Experiment Station. 41-47

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Abstract

Investigations of mineral nutrient-tree growth relationships have dealt mainly with associations involving foliage composition, root formation, or volume production of wood. Few studies have been concerned with changes in wood anatomy associated with element deficiency. In 1949 Davis reported that calcium deficiency was accompanied by a reduction of primary tissue and an increase in secondary tissue in loblolly pine (Pinus taeda L.) stems. Murphey et al. (1962) found that nutrient defiencies affected the percentage of phloem formed and reduced both vessel diameter and the number of rays in sweetgum (Liquidambar styraciflua L.) seedlings. There was no apparent change in fibril angle.

Parent Publication

Proceedings of the Eighth Lake States Forest Tree Improvement conference, Sept. 12-13, 1967.

Citation

Foulger, A.N.; Hacskaylo, J. 1968. Stem anatomy variation in cottonwood. In: Proceedings of the Eighth Lake States Forest Tree Improvement Conference; Res. Pap. NC-23. St. Paul, MN: U.S. Forest Service, North Central Forest Experiment Station. 41-47