Alternaria Blight of Mustard, a Real Farmer Headache

ISBN-13: 9783845437187 / Angielski / Miękka / 100 str.

Mohd. Mahmud Khan

Opis

The study demonstrate morphological and physiological variations in isolates of Alternaria brassicae and to evaluate the efficacy of fungicide (in vitro) on radial growth of the fungus and foliar sprays (field) against the disease severity on rapeseed-mustard. Morphological variations of A. brassicae obtained from various places were differed in their conidial size and septation. Physiological response of A. brassicae at varying temperatures, the fungus showed its maximum growth at 25°C followed 20°C and on different culture medium, maximum radial growth is on PDA. However, the fungus exhibited a descending trend in its growth at lower and higher regimes of temperature. Among the non systemic and systemic fungicides evaluated in vitro on radial growth inhibition of A. brassicae were found significantly most effective and reduced maximum radial growth at higher concentration. All fungicidal sprays applied under field conditions to manage the incidence of blight reduced significantly the severity of the disease and increased yield in comparison to untreated control. Ridomil-MZ proved to be most effective. Highest net profit as well as cost : benefit ratio was Bavistin + Indofil-Z 78.

O autorze

Dr. Mahmud Khan was born on 19 March 1980 in Imphal, Manipur, India and the second son of Aashiya Bibi and (L) M A Rahim Khan. He obtained Ph.D in Plant Protection from Aligarh Muslim University in 2011. He is presently a senior executive in United Phosphorus Ltd. Dr. Khan has published more than 20 research paper on Plant Pathology and Nematology.