RT null
T1 Crop Genetic Resources of Africa Volume II: Proceedings of an International Conferenceon Crop Genetic Resources of Africa
K1 crop
K1 genetic
K1 Nigeria
K1 Africa
YR 1991
FD 1991-10
LK https://wedocs.unep.org/handle/20.500.11822/29985
UL https://wedocs.unep.org/handle/20.500.11822/29985
NO Worldwide, food crops are increasing their yields but from ever fewer varieties. The genetic base of the world's food supply is shrinking, at an ever faster rate.
DS UN Environment Document Repository
RD Sep 17, 2026