TY  - BOOK
AU  - Nielson,Mervin William
TI  - Procedures for screening and testing alfalfa for resistance to the alfalfa seed chalcid,
PY  - 1967///
CY  - [Washington]
KW  - Alfalfa
KW  - Disease and pest resistance
KW  - Bruchophagus roddi
N1  - Caption title
ER  -