COLD HARDINESS OF TWIGS OF QUERCUS-RUBRA L AS A FUNCTION OF GEOGRAPHIC ORIGIN

[1] BATES C. G., 1930, JOUR FOREST, V28, P327

[2] DEXTER S. T., 1930, SCIENCE, V71, P220, DOI 10.1126/science.71.1834.220-a

[3] DRAPER N, 1966, APPLIED REGRESSION A

[4] EMERSON RA, 1906, NEBR AGR EXP STA ANN, V19, P101

[5] INDEX OF INJURY - A USEFUL EXPRESSION OF FREEZING INJURY TO PLANT TISSUES AS DETERMINED BY ELECTROLYTIC METHOD [J]. CANADIAN JOURNAL OF PLANT SCIENCE, 1967, 47 (02) : 229 - &

[6] FOWELLS HA, 1965, 271 US DEP AGR HDB F

[7] FROTHINGHAM EH, 1909, 150 US FOR SERV CIRC

[8] DETERMINATION OF WORLD PLANT FORMATIONS FROM SIMPLE CLIMATIC DATA [J]. SCIENCE, 1947, 105 (2727) : 367 - 368

[9] HOPKINS AD, 1938, 280 USDA MISC PUB

[10] JAYNES R, 1966, JAN NE SECT AM SOC H

[1] BATES C. G., 1930, JOUR FOREST, V28, P327

[2] DEXTER S. T., 1930, SCIENCE, V71, P220, DOI 10.1126/science.71.1834.220-a

[3] DRAPER N, 1966, APPLIED REGRESSION A

[4] EMERSON RA, 1906, NEBR AGR EXP STA ANN, V19, P101

[5] INDEX OF INJURY - A USEFUL EXPRESSION OF FREEZING INJURY TO PLANT TISSUES AS DETERMINED BY ELECTROLYTIC METHOD [J]. CANADIAN JOURNAL OF PLANT SCIENCE, 1967, 47 (02) : 229 - &

[6] FOWELLS HA, 1965, 271 US DEP AGR HDB F

[7] FROTHINGHAM EH, 1909, 150 US FOR SERV CIRC

[8] DETERMINATION OF WORLD PLANT FORMATIONS FROM SIMPLE CLIMATIC DATA [J]. SCIENCE, 1947, 105 (2727) : 367 - 368

[9] HOPKINS AD, 1938, 280 USDA MISC PUB

[10] JAYNES R, 1966, JAN NE SECT AM SOC H