{'fraction_non_alphanumeric': 0.022110552763819097, 'fraction_numerical': 0.01507537688442211, 'mean_word_length': 4.9640718562874255, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
INVESTIGATION ON PREVALENCE OF RICE BROWN LEAF SPOT IN CAUVERY DELTA REGION OF TAMILNADU INDIA

Rice is the major food crop in India. Rice is affected by many fungal, bacterial and viral diseases. Among them, Rice brown leaf spot caused by Bipolaris oryze is a important disease which reduces the yield of the crop. The present investigation was carried out to study the prevalence and occurrence of Rice brown spot in Cauvery Delta Region of Tamilnadu. Among the five districts surveyed, the disease incidence was more in Sirkazhi of Mayiladuthurai district which recorded 35.5% incidence. Aananthathandavapuram from Mayiladuthurai recorded second maximum incidence (30.5%). Thiruparaithurai village of Trichy district has recorded lowest Brown leaf spot incidence (18.5%) compared to other areas. Brown spot disease incidence was more in cultivar BPT 5204 and ADT 43 compared to other cultivars. Brown spot incidence was more in milking and maturity stage compare to other stages of rice crop.