TY  - BOOK
TI  - Heterosis breeding in crop plants : theory and application , Ludhiana, 23-24 Feb, 1993
U1  - PBG 631.53 H59 
PY  - 1993///
CY  - Ludhiana
PB  - PAU
KW  - PLANTS -- BREEDING
KW  - CROPS -- BREEDING
ER  -