TY  - JA
AU  - Hayes,H.K.
TI  - 6. Present-day problems of corn breeding
SN  - 0002-1962
PY  - 1926///
CY  - Madison, WI (USA)
PB  - American Society of Agronomy
KW  - Cross-breeding
KW  - AGROVOC
KW  - Selfing
KW  - Zea mays
T2  - Journal of the American Society of Agronomy
ER  -