TY  - GEN
AU  - Singhal, N. C.
TI  - Hybrid seed production in field crops: principles and practices
SN  - 8127207993
U1  - 631.52 
PY  - 2003///
CY  - New Delhi
PB  - Kalyani
KW  - HYBRID PRODUCTION IN FILED CROPS
KW  - AGRONOMY
KW  - BASIC PRINCIPLES OF SEED PRODUCTION
KW  - CROP SPECIES
ER  -