International Journal of Agricultural Economics

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New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17)

Received: 10 December 2023    Accepted: 4 January 2024    Published: 1 February 2024
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Abstract

Rainfed rice cultivation dominates in Laos, covering an estimated 88% of the total area. This reliance on rainwater renders all production and planting activities vulnerable to unpredictable natural disasters, such as floods and droughts, that can strike at any point during the growing season. Such events can devastate rice production, leading to losses of up to 20% of the total domestic output. Moreover, climate change has further exacerbated challenges faced by rainfed rice farming in Lao PDR. To address these issues, a research project aimed at developing rice varieties adapted to changing environmental conditions was initiated in 1993. The project employed a hybridization approach, utilizing TDK8 (a high-yielding variety with broad environmental adaptability) and RGD10033-77-MAS-22 (a aromatic variety tolerant to flooding, drought and blast disease). In 2019, a promising aromatic line, RGD13300-88-1-1-MAS-5-MAS-TDK-1-B, emerged from the research efforts. This line exhibits tolerance to flooding for 14 to 20 days and demonstrates good resistance to leaf blight and neck blast. Throughout 2021, production tests were conducted in four provinces: Luangnamtha, Vientiane Capital, Savannakhet, and Champasak. The new variety, named HTDK17, delivered superior yields compared to both parental lines and local varieties, achieving an average of 3,974 kg/ha, representing a 3% increase. HTDK17 exhibits a maturity date of 130 to 135 days and is insensitive to photoperiod. To facilitate the dissemination of this new variety to farmers, seed of this variety has produced 11,000 kg of seed during the dry season of 2022-2023. This seed was distributed to 1,100 farmers acroses the four aforementioned provinces.

DOI 10.11648/ijae.20240901.14
Published in International Journal of Agricultural Economics (Volume 9, Issue 1, February 2024)
Page(s) 30-35
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Climate Change, Submergence Tolerance, Production Loss, Aromatic Rice Variety, Flood Torelance, Drought Tolerance

References
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Cite This Article
  • APA Style

    Xangsayasane, P., Homsengchan, L., Mani, V., Chanchanuvong, P., Voradet, S., et al. (2024). New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17). International Journal of Agricultural Economics, 9(1), 30-35. https://doi.org/10.11648/ijae.20240901.14

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    ACS Style

    Xangsayasane, P.; Homsengchan, L.; Mani, V.; Chanchanuvong, P.; Voradet, S., et al. New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17). Int. J. Agric. Econ. 2024, 9(1), 30-35. doi: 10.11648/ijae.20240901.14

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    AMA Style

    Xangsayasane P, Homsengchan L, Mani V, Chanchanuvong P, Voradet S, et al. New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17). Int J Agric Econ. 2024;9(1):30-35. doi: 10.11648/ijae.20240901.14

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  • @article{10.11648/ijae.20240901.14,
      author = {Phetmanyseng Xangsayasane and Leah Homsengchan and Viengmani Mani and Pradit Chanchanuvong and Singty Voradet and Nikham Chanphao and Khamsuk Duangbupha and Vorachit Sihathep and Theerayut Toojinda and Chang-Ho Shin},
      title = {New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17)},
      journal = {International Journal of Agricultural Economics},
      volume = {9},
      number = {1},
      pages = {30-35},
      doi = {10.11648/ijae.20240901.14},
      url = {https://doi.org/10.11648/ijae.20240901.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.ijae.20240901.14},
      abstract = {Rainfed rice cultivation dominates in Laos, covering an estimated 88% of the total area. This reliance on rainwater renders all production and planting activities vulnerable to unpredictable natural disasters, such as floods and droughts, that can strike at any point during the growing season. Such events can devastate rice production, leading to losses of up to 20% of the total domestic output. Moreover, climate change has further exacerbated challenges faced by rainfed rice farming in Lao PDR. To address these issues, a research project aimed at developing rice varieties adapted to changing environmental conditions was initiated in 1993. The project employed a hybridization approach, utilizing TDK8 (a high-yielding variety with broad environmental adaptability) and RGD10033-77-MAS-22 (a aromatic variety tolerant to flooding, drought and blast disease). In 2019, a promising aromatic line, RGD13300-88-1-1-MAS-5-MAS-TDK-1-B, emerged from the research efforts. This line exhibits tolerance to flooding for 14 to 20 days and demonstrates good resistance to leaf blight and neck blast. Throughout 2021, production tests were conducted in four provinces: Luangnamtha, Vientiane Capital, Savannakhet, and Champasak. The new variety, named HTDK17, delivered superior yields compared to both parental lines and local varieties, achieving an average of 3,974 kg/ha, representing a 3% increase. HTDK17 exhibits a maturity date of 130 to 135 days and is insensitive to photoperiod. To facilitate the dissemination of this new variety to farmers, seed of this variety has produced 11,000 kg of seed during the dry season of 2022-2023. This seed was distributed to 1,100 farmers acroses the four aforementioned provinces.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - New Climate Resilience Rice Varieties for Coping with Climate Change HomThadokKham 17 (HTDK 17)
    AU  - Phetmanyseng Xangsayasane
    AU  - Leah Homsengchan
    AU  - Viengmani Mani
    AU  - Pradit Chanchanuvong
    AU  - Singty Voradet
    AU  - Nikham Chanphao
    AU  - Khamsuk Duangbupha
    AU  - Vorachit Sihathep
    AU  - Theerayut Toojinda
    AU  - Chang-Ho Shin
    Y1  - 2024/02/01
    PY  - 2024
    N1  - https://doi.org/10.11648/ijae.20240901.14
    DO  - 10.11648/ijae.20240901.14
    T2  - International Journal of Agricultural Economics
    JF  - International Journal of Agricultural Economics
    JO  - International Journal of Agricultural Economics
    SP  - 30
    EP  - 35
    PB  - Science Publishing Group
    SN  - 2575-3843
    UR  - https://doi.org/10.11648/ijae.20240901.14
    AB  - Rainfed rice cultivation dominates in Laos, covering an estimated 88% of the total area. This reliance on rainwater renders all production and planting activities vulnerable to unpredictable natural disasters, such as floods and droughts, that can strike at any point during the growing season. Such events can devastate rice production, leading to losses of up to 20% of the total domestic output. Moreover, climate change has further exacerbated challenges faced by rainfed rice farming in Lao PDR. To address these issues, a research project aimed at developing rice varieties adapted to changing environmental conditions was initiated in 1993. The project employed a hybridization approach, utilizing TDK8 (a high-yielding variety with broad environmental adaptability) and RGD10033-77-MAS-22 (a aromatic variety tolerant to flooding, drought and blast disease). In 2019, a promising aromatic line, RGD13300-88-1-1-MAS-5-MAS-TDK-1-B, emerged from the research efforts. This line exhibits tolerance to flooding for 14 to 20 days and demonstrates good resistance to leaf blight and neck blast. Throughout 2021, production tests were conducted in four provinces: Luangnamtha, Vientiane Capital, Savannakhet, and Champasak. The new variety, named HTDK17, delivered superior yields compared to both parental lines and local varieties, achieving an average of 3,974 kg/ha, representing a 3% increase. HTDK17 exhibits a maturity date of 130 to 135 days and is insensitive to photoperiod. To facilitate the dissemination of this new variety to farmers, seed of this variety has produced 11,000 kg of seed during the dry season of 2022-2023. This seed was distributed to 1,100 farmers acroses the four aforementioned provinces.
    
    VL  - 9
    IS  - 1
    ER  - 

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Author Information
  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Rice and Cash Crop Research Center, Saithany City, Vientaine, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Rice and Cash Crop Research Center, Saithany City, Vientaine, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Luangnamtha Research Center, Luangnatha City, Luangnamtha, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Luangnamtha Research Center, Luangnatha City, Luangnamtha, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Thasano Research Center, Kaison City, Savanakhet, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Thasano Research Center, Kaison City, Savanakhet, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Phonghan Research Center, Pakxe City, Champasack, Lao PDR

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Phonghan Research Center, Pakxe City, Champasack, Lao PDR

  • Rice Science, Rice Gene Discovery Unit, Kasetsart University Khamphaeng Saen, KhlongLung City, PathumThani, Thailand

  • Ministry of Agriculture, National Agriculture and Forestry Research Institute, Korea Program on International Agriculture (KOPIA), Saithany City, Vientiane, Lao PDR

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