Cone Analysis of Southern Pines - A Guidebook

D.L. Bramlett; E.W. Belcher; G.L. DeBarr; G.D. Hertel; Robert P. Karrfalt; C.W. Lantz; T. Miller; K.D. Ware; H.O. Yates

Treesearch

Cone Analysis of Southern Pines - A Guidebook

Informally Refereed

Authors:

D.L. Bramlett, E.W. Belcher, G.L. DeBarr, G.D. Hertel, Robert P. Karrfalt, C.W. Lantz, T. Miller, K.D. Ware, H.O. Yates

Year:

1977

Type:

General Technical Report

Station:

Southern Research Station

Source:

Gen. Tech. Rep. SE-13. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 32 p.

Download (PDF 6.89 MB)

Download (PDF 6.89 MB): https://research.fs.usda.gov/download/treesearch/808.pdf

Abstract

Southern pine tree improvement programs require an ample supply of improved seeds, but productron from southern pine seed orchards has often been disappointing. If high productron is to be malntained yields must be monitored and causes of seed losses must be identified. Techniques for determining seed efficiency were first used for red pine, Pinus resinosa Ait. by Lyons (1956) Bramlett (1972b. 1974) modified and further developed a procedure known as cone analysis, for evaluating production efficiency in southern pine seed orchards.

Citation

Bramlett, D.L.; Belcher, E.W., Jr.; DeBarr, G.L.; Hertel, G.D.; Karrfalt, Robert P.; Lantz, C.W.; Miller, T.; Ware, K.D.; Yates, H.O., III. 1977. Cone Analysis of Southern Pines - A Guidebook. Gen. Tech. Rep. SE-13. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 32 p.