Incidence of stem rot (Sclerotium oryzae Catt.) of rice in major rice growing regions of Andhra Pradesh, Telangana and Tamil Nadu
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Authors
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P Ramanjineyulu
Ph D Research scholar, Department of Plant Pathology, S V Agricultural College, ANGRAU,Tirupati 517502, A.P.
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D Krishnaveni
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad 500030, Telangana
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T Srinivas
Krishi Vigyan Kendra, Banavasi, ANGRAU, Kurnool 518360, Andhra Pradesh.
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B Padmodaya
DAATTC, Utukur, ANGRAU, Kadapa 516003, Andhra Pradesh
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S K Mangrauthia
Integrated Tribal Development Authority, Sunnipenta, Srisailam 518102, Andhra Pradesh.
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B G S Jasudasu
ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad 500030, Telangana
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Ravindra Reddy
Integrated Tribal Development Authority, Sunnipenta, Srisailam 518102, Andhra Pradesh.
Keywords:
Disease incidence, rice, Sclerotium oryzae, stem rot.Abstract
Incidence of stem rot of rice was assessed in major growing regions of Andhra Pradesh, Telangana and Tamil Nadu during Kharif- 2020. Disease incidence varied among the locations. The highest mean disease incidence (5.97%) was recorded in Andhra Pradesh with a range of 3.20 to 9.83 %, followed by Telangana (2.34%) ranged from 1.02 to 3.97 % and the lowest mean disease incidence (2.08%) was recorded in Tamil Nadu with a range of 0.00 to 3.51 %. Among all the areas surveyed the highest mean disease incidence (12.92%) was recorded in Karapa mandal with a range of 12.53 to 13.30 % and the lowest incidence (0.00%) was recorded in Devakottai block, Sivagangai district of Tamil Nadu. Stem rot incidence was observed among all the prominent cultivars of particular regions. The information generated on rice stem rot incidence could be useful in the prioritizing the research and extension work in the management of the disease.
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