TY  - BOOK
AU  - GUPTA, U S
TI  - Crop physiology
U1  - 581.1:633 
PY  - 1978///
CY  - New Delhi
PB  - Oxford & IBH
KW  - Canopy photosynthesis
KW  - Crop physiology
KW  - Root toxin
KW  - Seed germination
KW  - Vernalization
ER  -