TY  - BK
TI  - Seeds for our future:  the U.S. National Germplasm System
T2  - Program aid PA - U.S. Department of Agriculture (USA).
SN  - 0276-0185
U1  - 92-002295 
PY  - 1990///
KW  - America
KW  - Developmental stages
KW  - Mathematical and statistical methods
KW  - Natural resources
KW  - North America
KW  - Plant anatomy
KW  - AGROVOC
KW  - Plant developmental stages
KW  - Plant reproductive organs
KW  - Resource management
KW  - Seed production
KW  - Genetic resources
KW  - Plant breeding
ER  -