U.S. SHARATH CHANDRAN1, *K. VEMANA1, R. SARADAJAYALAKSHMI DEVI1, MAMTA SHARMA2

1 Department of plant pathology, S.V. Agricultural College, ANGRAU, Tirupati – 517 502, Chittoor (Dist.)

Andhra Pradesh

2 International Crop Research institute for Semi-Arid Tropics, Patancheru, Hyderabad, Telangana

ABSTRACT

Pigeonpea cultivation is subjected to high yield losses every year. Dry root rot or Macrophomina stem canker caused by Rhizoctonia bataticola (Taub.) of pigeonpea is an emerging and serious problem in late sown or summer crops and in perennial or ratooned pigeonpea. Keeping in mind the minimal work done with respect to this pathogen, the present study was conducted to explore the cultural variability of the different R. bataticola isolates of pigeonpea. Ten isolates were characterized in vitro to study their cultural characteristics.The presence of cultural variability among the different isolates were evident from the study.

KEYWORDS:

Organic, inorganic, sheep penning, rainfed, protective irrigation, groundnut yield.