Investigation on the clonal susceptibility of powdery mildew disease in rubber plantations in Meenachil, Kanjirappally and Peermedu taluks of Kottayam and Idukki districts - Luka K.A. (Dissertation, PG Diploma in Natural Rubber Production, Kerala Agricultural University, Trichur, India, 38 p., 1991)
Keywords: Clonal susceptibility; Powdery mildew