Ysgol Gwyddorau Amgylcheddol a Naturiol
- 1988
Studies of the biological activity of a novel herbicide (Triasulfuron) including studies of mobility and persistence in soils.
Awdur: Oppong, F. K., Hyd 1988Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
- 1989
Vegetation succession following the clearance of Rhododendron in the Vale of Ffestiniog.
Awdur: Hockley, T. G., Hyd 1989Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
- 1990
Water relations of salt stressed wheat
Awdur: Arif, H., Ion 1990Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
The application of recently developed techniques to Welsh Black Cattle in a group breeding scheme.
Awdur: Brown, C. M., Ebr 1990Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
The effects of selective logging methods on hydrological parameters in Peninsular Malaysia.
Awdur: Nik, A. R. H., Ebr 1990Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
- 1991
Effects of water stress and salinity on contrasting wheat genotypes.
Awdur: Mallah, A. N., Ion 1991Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
'Shake' defects and wood structure variations in British oaks (Quercus SPP.).
Awdur: Henman, G. S., Medi 1991Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
Variation of growth and reproduction in a marine bryozoan.
Awdur: Hunter, E., Hyd 1991Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
- 1992
Cryopreservation of ram semen for artificial insemination.
Awdur: Ahangari, Y. J., Ion 1992Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth
Dimensional stabilisation by chemical modification of wood
Awdur: Martins, V. A., Ion 1992Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth