Nursery temperature as a factor in root elongation of ponderosa pine seedlings

Gilbert H. Schubert; Frank J. Baron

Nursery temperature as a factor in root elongation of ponderosa pine seedlings

Informally Refereed

Authors:

Gilbert H. Schubert, Frank J. Baron

Year:

1965

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-066. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 11 p

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Abstract

Greenhouse and nursery studies suggest that graphs of "effective" day and night temperatures provide a convenient method to compare nursery sites and to evaluate the effects of temperature on seedling root growth. Comparisons of root response under different natural temperature regimes should provide inforrnation use ful 'for the production of higher quality nursery stock and for interpretation of the more detailed studies in controlled-temperature chambers.

Citation

Schubert, Gilbert H.; Baron, Frank J. 1965. Nursery temperature as a factor in root elongation of ponderosa pine seedlings. Res. Note PSW-RN-066. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 11 p