TY  - BOOK
AU  - SHARMA, Nand Kishore
TI  - Studies on variability of Pseudoperonospora cubensis (Berk. abd Curt.) Rostow; cause of downy mildew of cucurbits
U1  - 635.62 S33S 
PY  - 1984///
PB  - Ludhiana
KW  - CUCURBIT -- DISEASES AND PESTS
KW  - CUCURBITS
KW  - DOWNY MILDEW
KW  - FUNGUS
KW  - PL PATHOLOGY
KW  - VARIABILITY
N2  - Fifteen crops were identified as the differentials for 11 isolates of P cubensis were identified as the differntials for 11 isolates of Pcubiensis. Five main types of lesions were identified in various crop-race systems Two types of lesions ie mild type a
ER  -