Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques
Rice (Oryza sativa L.) is the most important staple cereal crop which is consumed by more than 50% of world population. It contributes 23% and 50% of total calories consumed by world and Nepalese population respectively. Among various abiotic factors affecting rice, rice blast is the most disastrous...
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Hasan Eleroğlu
2022-02-01
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| Series: | Turkish Journal of Agriculture: Food Science and Technology |
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| Online Access: | http://www.agrifoodscience.com/index.php/TURJAF/article/view/4548 |
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| author | Kapil Simkhada Rabin Thapa |
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| description | Rice (Oryza sativa L.) is the most important staple cereal crop which is consumed by more than 50% of world population. It contributes 23% and 50% of total calories consumed by world and Nepalese population respectively. Among various abiotic factors affecting rice, rice blast is the most disastrous, causing 70-80% yield loss. This disease was originated in China around 7000 years ago. In Nepal, it was first reported in Thimi, Bhaktapur in 1966. It is caused by a filamentous ascomycete fungus Magnaporthe oryzae (Anaemorphic form- Pyricularia oryzae). It infects all the developmental stage of plant and produce symptoms on the leaf, collar, neck, panicle and even in the glumes. It decreases the rice production by an amount, enough to feed 60 million people every year. Cloudy weather, high relative humidity (93-99%), low night temperature (15- 20°C), longer duration of dew is the most favorable condition for the outbreak of disease. The most usual approaches for the management of rice blast diseases are management in nutrient fertilizer and irrigation, application of fungicides and plantation of resistant cultivars. Besides, the use of extracts of C. arabica are reported to have an inhibitory effect on the disease. Seed treatment with Trichoderma viridae @ 5ml/lit of water have also been found effective. The chemical means of controlling blast disease shall be reduced, instead eco-friendly measures like biocontrol agents, resistant varieties, plant extracts can be practiced for disease control. Different forecasting model can be used in order to predict the disease prevalence. |
| format | Article |
| id | doaj-art-b48c1c90dc134e5eb2559448de1b94eb |
| institution | OA Journals |
| issn | 2148-127X |
| language | English |
| publishDate | 2022-02-01 |
| publisher | Hasan Eleroğlu |
| record_format | Article |
| series | Turkish Journal of Agriculture: Food Science and Technology |
| spelling | doaj-art-b48c1c90dc134e5eb2559448de1b94eb2025-08-20T02:23:12ZengHasan EleroğluTurkish Journal of Agriculture: Food Science and Technology2148-127X2022-02-0110214715710.24925/turjaf.v10i2.147-157.45482371Rice Blast, A Major Threat to the Rice Production and its Various Management TechniquesKapil Simkhada0Rabin Thapa1Agriculture and Forestry University, BharatpurDepartment of Agricultural Economics and Agribusiness Management, Faculty of Agriculture, Agriculture and Forestry University, ChitwanRice (Oryza sativa L.) is the most important staple cereal crop which is consumed by more than 50% of world population. It contributes 23% and 50% of total calories consumed by world and Nepalese population respectively. Among various abiotic factors affecting rice, rice blast is the most disastrous, causing 70-80% yield loss. This disease was originated in China around 7000 years ago. In Nepal, it was first reported in Thimi, Bhaktapur in 1966. It is caused by a filamentous ascomycete fungus Magnaporthe oryzae (Anaemorphic form- Pyricularia oryzae). It infects all the developmental stage of plant and produce symptoms on the leaf, collar, neck, panicle and even in the glumes. It decreases the rice production by an amount, enough to feed 60 million people every year. Cloudy weather, high relative humidity (93-99%), low night temperature (15- 20°C), longer duration of dew is the most favorable condition for the outbreak of disease. The most usual approaches for the management of rice blast diseases are management in nutrient fertilizer and irrigation, application of fungicides and plantation of resistant cultivars. Besides, the use of extracts of C. arabica are reported to have an inhibitory effect on the disease. Seed treatment with Trichoderma viridae @ 5ml/lit of water have also been found effective. The chemical means of controlling blast disease shall be reduced, instead eco-friendly measures like biocontrol agents, resistant varieties, plant extracts can be practiced for disease control. Different forecasting model can be used in order to predict the disease prevalence.http://www.agrifoodscience.com/index.php/TURJAF/article/view/4548ecofriendly managementfood securityforecasting diseasesricerice blast |
| spellingShingle | Kapil Simkhada Rabin Thapa Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques Turkish Journal of Agriculture: Food Science and Technology ecofriendly management food security forecasting diseases rice rice blast |
| title | Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques |
| title_full | Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques |
| title_fullStr | Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques |
| title_full_unstemmed | Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques |
| title_short | Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques |
| title_sort | rice blast a major threat to the rice production and its various management techniques |
| topic | ecofriendly management food security forecasting diseases rice rice blast |
| url | http://www.agrifoodscience.com/index.php/TURJAF/article/view/4548 |
| work_keys_str_mv | AT kapilsimkhada riceblastamajorthreattothericeproductionanditsvariousmanagementtechniques AT rabinthapa riceblastamajorthreattothericeproductionanditsvariousmanagementtechniques |