1. Chand R, Pandey SP, Singh HV, Kumar S, Joshi AK (2003) Variability and its probable cause in the natural populations of spot blotch pathogen Bipolaris sorokiniana of wheat (T. aestivum L.) in India. J Plant Dis Protection 110:27–35
2. Chaurasia S, Chand R, Joshi AK (2000) Relative dominance of Alternaria triticina Pras. et Prab. and Bipolaris sorokininana (Sacc.) Shoemaker, in different growth stages of wheat (T. aestivum L.). J Plant Dis Protection 107:176–181
3. Chaurasia S, Joshi AK, Dhari R, Chand R (1999) Resistance to foliar blight of wheat: a search. Genet Resources Crop Evol 46:469–475
4. Duveiller E (2003) Controlling foliar blight of wheat in rice-wheat system of Asia. Plant Dis 88:52–56
5. Gower JC (1966) Some distance properties of latent root and vector methods used in multivariate analysis. Biometrica 53:325–338