R. Wittwer
发表
T. C. Hennessey,
P. Dougherty,
T. B. Lynch,
2004
.
T. C. Hennessey,
M. Blazier,
T. B. Lynch,
2002
.
D. Cosby,
P. Dougherty,
R. Wittwer,
1986
.
D. Bickelhaupt,
R. Wittwer,
A. L. Leaf,
1975,
Plant and Soil.
T. C. Hennessey,
P. Dougherty,
R. Wittwer,
1992
.
S. B. Carpenter,
B. Wood,
R. Wittwer,
1977,
Plant and Soil.
Douglas J. Stevenson,
T. B. Lynch,
R. Wittwer,
2004
.
S. Shifley,
M. Jenkins,
M. Spetich,
2022,
Earth.
R. Wittwer,
M. Huebschmann,
C. Tauer,
1997,
New Forests.
S. B. Carpenter,
D. Graves,
R. Wittwer,
1980
.
Y. Huang,
R. Wittwer,
C. Tauer,
1997,
Theoretical and Applied Genetics.
E. Eisenbraun,
K. W. Payne,
R. Wittwer,
1998
.
M. Payton,
T. C. Hennessey,
M. Blazier,
2004
.
Robert F. Wittwer,
Thomas C. Hennessey,
P. M. Dougherty,
1995
.
R. Wittwer,
1991
.
M. G. Shelton,
J. Guldin,
R. Wittwer,
2003
.
T. C. Hennessey,
P. Dougherty,
R. Wittwer,
1989
.
Robert F. Wittwer,
Thomas C. Hennessey,
Bert M. Cregg,
1992
.
M. Shelton,
R. Wittwer,
K. Grayson,
2004
.
M. Shelton,
R. Wittwer,
K. Grayson,
2002
.
M. Shelton,
R. Wittwer,
1996
.
R. Wittwer,
Yinghua Huang,
C. Tauer,
2000
.
REGENERATION METHODS AFFECT GENETIC VARIATION AND STRUCTURE IN SHORTLEAF PINE (PINUS ECHINATA MILL.)
R. Wittwer,
Yinghua Huang,
C. Tauer,
1998
.
R. Wittwer,
M. J. Immel,
1980,
Plant and Soil.
J. Stringer,
R. Wittwer,
1985
.
R. Wittwer,
R. King,
J. Clayton,
1978
.
S. B. Carpenter,
B. Wood,
R. Wittwer,
1976
.
R. Wittwer,
1980
.
T. B. Lynch,
R. Wittwer,
M. Huebschmann,
1999
.
T. B. Lynch,
R. Wittwer,
2003
.
C. Budhathoki,
T. B. Lynch,
R. Wittwer,
2012
.
E. Springer,
G. B. Coltharp,
R. Wittwer,
1978
.
T. B. Lynch,
R. Wittwer,
2002
.
R. Wittwer,
Yinghua Huang,
C. Tauer,
1997
.