TY  - BK
AU  - Heydecker,W.
TI  - Seed ecology
SN  - 0-408-70460-8
U1  - 581.5 
PY  - 1973///
CY  - London (United Kingdom)
PB  - Butterworths, 
KW  - Adaptation
KW  - Dormancy
KW  - Ecology
KW  - High-yielding varieties
KW  - AGROVOC
KW  - Life cycle
KW  - Light requirements
KW  - Mechanization
KW  - Progeny
KW  - Progeny forms
KW  - Seed
KW  - Seed storage
KW  - Seedborne organisms
KW  - Sowing
KW  - Varieties
N1  - Illustrations, tables, graphs, references, index p. 569-578, appendices
ER  -