TY - BOOK AU - Singh, Jagdish Prasad TI - A Comparative Study of Four Isolates of Helminthosporium Oryzae Breda de Hann and Inducing Sporulation in Non-Sporulating Isolages U1 - 632.4 PY - 1963/// CY - Sabour, Bhagalpur PB - RAU KW - Plant Pathology KW - Thesis ER -