الفهرس 
The causal organismOnly 14 pages are availabe for public view
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Abstract
Scemtium cepivorum Berk’ was isolated f rolg diseased onion plant s typically showing white rot symptoms. Investigations were undertaken -1;s study the following topics: I. The effect of 10 major (N, I?, IC, S and Mg) and minor elements (Pe, Zn, Mn, Cu and &’lo) on the growth and sclemtid formation of g, cepi~orum~ 11. The effect of certain fertilizers on the incidence of white r o t diseaseo 111. The e f f e c t o f four preceding crops (~ema a s- , 7 -sativa, GXycine m_a?r_ and 3haseolus vulgaris) on the incidence of white r o t disease. IV. The effect of the above crops on the soil arzd sclerotial microflorao V. The antagonistic effect of the isolated dcroorgani~ms to s. ce~ivorum~