Recovering Ability of Upland and Rainfed Lowland Rice Varieties against Rice Tungro Disease

Khatun, Mst. Minara; Ma, Li; Rahman, Md. Moshiur; Hossain, Mohammad Amir; Ansari, T. H.; Nessa, B; Khan, Mohammad Ashik Iqbal; Ali, MA; Hanafi, M. M.

doi:10.3329/brj.v21i1.37390

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…Amongst virus diseases, rice tungro is found to be most destructive in rice growing areas. For this, BR8 and BRRI dhan37 has been found to have high recovery ability among upland and rainfed lowland areas, respectively (Khatun et al, 2017) and Lee, 2001). Moreover, the major diseases of rice such as rice blast, sheath rot, brown spot, bakanae and bacterial leaf blight, are seed borne diseases.…”

Section: Selection Of Varietymentioning

confidence: 90%

Agronomic practices for sustainable diseases management in rice: A review

Jehangir

Ahangar

Hassan

et al. 2022

ECJ

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Rice is globally the most important food crop and there is a dire need to feed the ever-increasing population by improving its productivity. It has been realised that diseases are the major impediment towards enhancing the productivity of this crop. Despite the advent of modern effective disease control measures such as use of chemicals, bioagents and resistant varieties; agronomic practices still play a vital role in disease management in rice. Optimum use of different agro-techniques can be exploited for efficient control of various devastating diseases like rice blast, sheath blight, bakanae and many more by providing a favourable environment to better crop survival. Besides, appropriate selection of a variety, use of quality seed, method of establishment, planting time, nutrient, water and weed management practices can be well exploited to control various diseases. This manuscript entails to review the work pertaining to use of agronomic practices for exploiting the potential of crop environment interaction through reduced disease infection and to bridge the yield gap for ensuring sustained food security.

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Section: Selection Of Varietymentioning

confidence: 90%

Agronomic practices for sustainable diseases management in rice: A review

Jehangir

Ahangar

Hassan

et al. 2022

ECJ

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“…To manage the specific disease in this specific location, we should suggest location-specific technology. For instance, to avoid tungro in Habiganj during Aus season, we can suggest farmers cultivate a variety like BR8 because it has the highest potential to recover from tungro disease after being affected by tungro virus (Khatun et al, 2017). Similarly, BRRI dhan37 has the highest potential to give better yield against tungro during T. Aman season (Khatun et al, 2017).…”

Section: G Location-specific Variety Specific and Disease-specific Smart Disease Management Packagesmentioning

confidence: 99%

“…For instance, to avoid tungro in Habiganj during Aus season, we can suggest farmers cultivate a variety like BR8 because it has the highest potential to recover from tungro disease after being affected by tungro virus (Khatun et al, 2017). Similarly, BRRI dhan37 has the highest potential to give better yield against tungro during T. Aman season (Khatun et al, 2017). Likely, if we advocate farmers to cultivate BRRI dhan49, then we should suggest farmers to planting BRRI dhan49 with the 'recommended-sowingwindow' that means within 15 June to 14 July; if the variety is sown on or before 1 July, it would most likely escape the major risk of the false smut disease and the infection rate will be less than 1% (Nessa, 2017).…”

Section: G Location-specific Variety Specific and Disease-specific Smart Disease Management Packagesmentioning

confidence: 99%

Strategy for Rice Disease Management in Bangladesh

Khatun

Nessa

Salam³

et al. 2021

Bangladesh Rice J.

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Disease is one of the most limiting biotic factors that affects rice production worldwide. In Bangladesh, there are 10 rice diseases considered as major, which cause economic loss in farmers’ fields. Therefore, the aim of this article is to explore all the feasible avenues of technology deployment on rice disease management to restrict the disease infection at minimum level and thus minimize economic loss. The article is generated using data and/or infromation from published and unpublished works and incorporating authors’ experience. It is evident that periodically (odd year) a disease outbreak or epidemic occurred in Bangladesh such as blast. Under epidemic situation, research findings estimated a yield loss of up to 98% at the highest disease severity level of infection of blast. On the other hand, field survey indicated the highest of 65.4% yield loss from severly infected field with the disease. To overcome the epidemics in odd years and to keep the loss under economic threshold level, it is necessary to undertake preventive measures such as planting of resistant or tolerant varieties, use of disease-free seeds from healthy plants, use of balanced fertilizer where applicable, and following feasible crop rotations. Currently, it is urgent need for developing strong and precise weather-based disease-risk forecasting system at least one week’s lead time based on real-time weather data. Subsequent quick management options such as disease-specific fungicidal treatment should be communicated to all stakeholders using fast-delivery media such as TV channels and SMS could be efficient and effective ways to address the disease outbreak under epidemic situation. To address annualized yield loss, it is suggested to execute interventions like effective training to the root level (both for farmers and extension personnel) and conducting demonstration in farmers fields, regular field monitoring, digitalization in disease management sector, revive indigenous technologies as appropriate, and improving rice production system. To continously improve rice disease management sector, this paper has proposed an innovative action for three decades through to 2050 under the banner ‘Location, Variety and Disease Specific Smart Management’ on research, development and extension. Bangladesh Rice J. 25 (1) : 23-36, 2021

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Molecular detection of tungro virus on mekongga and inpari 4 rice varieties in West Papua

Hamdayanty

Ladja²,

Mansur³

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Tungro disease is one of the important diseases in rice plants. One of the efforts to reduce the spread of tungro virus is to ensure the presence of the virus in the field. This is the first step to prevent the spread and control of tungro disease, especially in West Papua. One detection technique that can be done is molecular detection through PCR techniques. Rice samples detected were Mekongga and Inpari varieties taken from rice plants in West Papua. Total DNA of RTBV, one of the viruses that cause tungro disease, was extracted and amplified using DAF primers (5-GGAATTCCGGCCCTCAaA AACCTAGAAG-3) and DAR (5-GGGGGTACCCCCCTC CGATTTCCCATGTATG-3). The PCR RTBV results showed that the positive samples were infected with Rice tungro bacilliform virus (RTBV). This is indicated by amplification of DNA measuring ± 1400 bp which is the target size of the DAF and DAR primers. The results of this study are preliminary information that can be used as a basis for tungro control and recommendations for future cropping.

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Recovering Ability of Upland and Rainfed Lowland Rice Varieties against Rice Tungro Disease

Cited by 4 publications

References 9 publications

Agronomic practices for sustainable diseases management in rice: A review

Agronomic practices for sustainable diseases management in rice: A review

Strategy for Rice Disease Management in Bangladesh

Molecular detection of tungro virus on mekongga and inpari 4 rice varieties in West Papua

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