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

Phetmanyseng Xangsayasane; Leah Homsengchan; Viengmani Mani; Pradit Chanchanuvong; Singty Voradet; Nikham Chanphao; Khamsuk Duangbupha; Vorachit Sihathep; Theerayut Toojinda; Chang-Ho Shin

doi:doi:10.11648/ijae.20240901.14

Research Article |

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

Phetmanyseng Xangsayasane^*, Leah Homsengchan, Viengmani Mani, Pradit Chanchanuvong, Singty Voradet, Nikham Chanphao, Khamsuk Duangbupha, Vorachit Sihathep, Theerayut Toojinda, Chang-Ho Shin

Published in International Journal of Agricultural Economics (Volume 9, Issue 1)

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

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

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.

Published in	International Journal of Agricultural Economics (Volume 9, Issue 1)
DOI	10.11648/ijae.20240901.14
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

[1]	Asibi, Aziiba Emmanuel, Qiang Chai, and Jeffrey A. Coulter. 2019. "Rice Blast: A Disease with Implications for Global Food Security" Agronomy 9, no. 8: 451. https://doi.org/10.3390/agronomy9080451.
[2]	Baker B, Zambryski P, Staskawicz B, Dinesh Kumar SP. Signaling in plant microbe interactions. Science. 1997. 276: 726-733.
[3]	Buttery RG, Ling LC, Juliano BO, Turnbaugh JG. 1983. Cooked rice aroma and 2-acetyl-1-pyrroline in rice. J Agric Food Chem 31: 823-826.
[4]	Chanthakon Buaraphan, Kongpan Khanyavong, Suwann Thadavong, Khamta Suriyavongsi, Khamkham Hongpakdee and Khamtai Vongchaya. 2019. A new variety of fragrant Hom TDK1. Journal of Agriculture And Forestry, Vol. 40, p 120-137.
[5]	Chaipanya, Chaivarakun & Yanoria, Mary & Quime, Berlaine & Longya, Apinya & Korinsak, Siripar & Korinsak, Siriporn & Toojinda, Theerayut & Vanavichit, Apichart & Jantasuriyarat, Chatchawan & Zhou, Bo. 2017. Dissection of broad-spectrum resistance of the Thai rice variety Jao Hom Nin conferred by two resistance genes against rice blast. Rice. 10. 10.1186/s12284-017-0159-0.
[6]	Das, KK, Panda, D; Sarkar, RK; Reddy, JN; Ismail, AM. 2009. Submergence tolerance in relation to variable flood water conditions in rice. Environ. Exp. Bot. 66. 425-434.
[7]	Fukuta Y, Koga I, Ung T, Sathya K, Kawasaki-Tanaka A, Koide Y, Kobayashi N, Obara M, Yadana H, Hayashi N. 2014. Pathogenicity of rice blast (Pyricularia oryzae Cavara) isolates from Cambodia. Japan Agric Res Q 48(2): 155–166.
[8]	Gnanamanickam SS. 2009. Biological Control of Rice Diseases. Springer, London.
[9]	Kotchasatit A. 2013. UBN 03007-47-7-7-26-35-19: An early maturing, non-glutinous promising rice line resistant to blast. Proceedings of the 30 th Rice and Temperate Cereal Crops Annual Conference. 2013, Bangkok, Thailand. pp 56-71.
[10]	Korinsak S, Sirithunya P, Meakwatanakarn P, Sarkarung S, Vanavichit A, Toojinda T. 2011. Changing allele frequencies associated with specific resistance genes to leaf blast in backcross introgression lines of Khao Dawk Mali 105 developed from a conventional selection program. Field Crops Res.; 122 (1): 32–9.
[11]	Katengam, S., Kimchaiyong, W., Wanchana, S., and Toojinda T. 2008. Association analysis and functional marker development of soluble starch synthase IIa (SSIIa) and gelation properties in Thai rice. In: Proceeding of the 5th International Crop Science Congress & Exhibition. Jeju: 1–4.
[12]	Leah Homsengchan, Phetmanyseng Xangsayasane, Chanthakhon Buaraphan, Phatsalakon Manivong, Bounsong Bounyavong and Theerayut Toojinda. 2021. Rice varieties that adapt to climate change Varieties of Hom TDK15 (HTDK15). Journal of Agriculture and Forestry Research, No. 44, p. 39-56.
[13]	Leah Homsengchan, Phetmanyseng Xangsayasane, Chanthakhon Buaraphan, Khamtai Vongsaiya, Phatsalakon Manivong, Amphai Suwanarat and Theerayut Toojinda. 2022. Rice varieties that adapt to climate change Varieties of Hom TDK16 (HTDK16). Journal of Agriculture and Forestry Research, No. 45, p. 114-131.
[14]	Lorieux M, Petrov M, Huang N, Guiderdoni E, Ghesquiere A. 1996. Aroma in rice genetic analysis of a quantitative trait. Theoretical & Applied Genetics, 93, 1145-1151.
[15]	Lin F, Chen S, Que Z, Wang L, Liu X, Pan Q. The blast resistance gene Pi37 encodes a nucleotide binding site leucine-rich repeat protein and is a member of a resistance gene cluster on rice chromosome 1. Genetics. 2007. Nov; 177(3): 1871-80. doi: 10.1534/genetics.107.080648. Epub 2007 Oct 18. PMID: 17947408; PMCID: PMC2147969.
[16]	Manivong, P., Korinsak, S., Korinsak, S., Siangliw, JL, Vanavichit, A., Toojinda, T. 2014. Marker assisted selection to improve submergence tolerance, blast resistance and strong fragrance in glutinous rice. Thai Journal of Genetics 7: 110–122.
[17]	Neeraja C, Maghirang-Rodriguez R, Pamplona A, Heuer S, Collard B, Septiningsih E, Vergara G, Sanchez D, Xu K, Ismail A, Mackill D. 2007. A marker assisted backcross approach for developing submergence-tolerant rice cultivars. Theor. Appl. Genet. 115: 767-776.
[18]	Nguyen TTT, Truong HTH, Nguyen LT, Nguyen LHK. 2015. Identification of rice blast resistance genes in south central coast of Vietnam using monogenic lines under field conditions and pathogenicity assays. J Agric Sci Technol A B & Hue Univ J Sci 5: 491-500.
[19]	Noenplab A, Vanavichit A, Toojinda T, Sirithunya P, Tragoonrung S, Sriprakhon S, et al. 2006. QTL mapping for leaf and neck blast resistance in KhaoDawk Mali 105 and Jao Horn Nin recombinant inbred lines. Sci Asia. 32(2): 133–42.
[20]	Nalampangnoenplab A. 2011. Minimization of rice blast severity by means of multilines in the lower north. Proceeding of rice research symposium 2011: Rice research center groups in upper and lower northern region, Phrae, Thailand. pp 225-241.
[21]	Phoumi Inthanpanya, Chanthakon Buaraphan, Dr. Chay Bounphanousay, Phetmanyseng Xangsayasan, Singty Voradet and Kongpan Khanyavong. 2012. A new variety of glutinous rice with high yield: Tha Tho Kham 8 (TDK8). Journal of Agriculture and Forestry, Vol. 25, p40-61.
[22]	Phetmanyseng Xangsayasan, Phuomi Inthapaya, Chay Bounphanousay and Yoshimichi Fukuta. 2010. The use of rice varieties with different genetic bases to control the outbreak of blast diseas in Lao PDR. Journal Agriculture and Forest, Vol. 22, page 1-18.
[23]	Phetmanyseng Xangsayasan, Phuomi Inthapanya, Phatsalakhone. Manivong, Doungsavan Lorvanxai, Khamtai Vonxaiya. 2015. New Aromatic, Flood and Drought Tolerance Non-glutinous Rice Varieties “Hom Xebangfai2 and Hom Xebangfai3”.
[24]	Phatsalakhon Manivong, Phetmanyseng Xangsayasane, Chanthakhon Buaraphan, Theerayut Toojinda, Leah Homsengchan, Khathai Vongsayya and Somjit Chulamonty. 2020. A new variety of sticky rice, which is flood and blast resistant: Xebangfai4 (HXBF4). Journal of Agriculture and Forestry Research, Vol 43, pp. 138-158.
[25]	Pachauri, V., Singh, MK, Singh, AK et al. Origin and Genetic Diversity of Aromatic Rice Varieties, Molecular Breeding and Chemical and Genetic Basis of Rice Aroma. J. Plant Biochem. Biotechnol. 19, 127–143. 2010. https://doi.org/10.1007/BF03263333 .
[26]	Paule CM, Powers JJ. 1989. Sensory and chemical examination of aromatic and non-aromatic rices. J Food Sci 54: 343–346.
[27]	Petrov M, Danzart M, Giampaoli P, Faure J, Richard H. 1996. Rice aroma analysis Discrimination between a scented and a non-scented rice. Sci Aliments 16: 347–360.
[28]	Pinta W, Toojinda T, Thummabenjapone P, Sanitchon J. 2013. Pyramiding of blast and bacterial leaf blight resistance genes into rice cultivar RD6 using marker assisted selection. Afr J Biotechnol12 (28): 4432–4438.
[29]	Ruengphayak, Siriphat & Chaichumpoo, Ekawat & Phromphan, Supaporn & Kamolsukyunyong, Wintai & Sukhaket, Wissarut & Phuvanartnarubal, Ekapol & Korinsak, Siripar & Korinsak, Siriporn & Vanavichit, Apichart. 2015. Pseudo-backcrossing design for rapidly pyramiding multiple traits into a preferential rice variety. Rice. 8. 10.1186/s12284-014-0035-0.
[30]	Schiller JM, Linquist B, Douangsila K, Inthapanya P, Douang Boupha B, Inthavong S, Sengxua P. 2001. Constraints to rice production systems in Laos. In: Fukai S and Basnayake J (eds) Rice in Laos. IRRI, Manila, ACIAR Proceedings, pp. 3-19.
[31]	Schiller JM, Linquist B, Douagsila K, Phoumi. I, B. Douang- boupha, S. Inthavong P, Sengxua. 2006. Constraints to Rice Production System in Laos. In: Increasing Lowland Rice Production in the Mekong Region. International Workshop, Vientiane Laos. ACIAR Proceedings No. 101, 3-19.
[32]	Singh G, Prasad CS. Evaluation of fungicides against blast in Basmati rice. Ann. Plant Protection. Sci. 2007. 15(2): 514-515.
[33]	Sreewongchai, T., Toojinda, T., Thanintorn, N., Kosawang, C., Vanavichit, A., Tharreau, D., and Sirithunya, P. 2010. Development of elite indica rice lines with wide spectrum of resistance to Thai blast isolates by pyramiding multiple resistance QTLs. Plant Breeding 129: 176-180.
[34]	Sureshkumar V, Bipratip Dutta, Vishesh Kumar, G Prakash, Dwijesh C Mishra, K K Chaturvedi, Anil Rai, Amitha Mithra Sevanthi, Amolkumar U Solanke, RiceMetaSysB: a database of blast and bacterial blight responsive genes in rice and its utilization in identifying key blast-resistant WRKY genes, Database, Volume. 2019. 2019, baz015, https://doi.org/10.1093/database/baz015
[35]	Vanavichit A, Yoshihashi T, Wanchana S, Areekit S, Saengsraku D, Kamolsukyunyong W, Lanceras J, Toojinda T, Tragoonrung S. 2004. Positional cloning of Os2AP, the aromatic gene controlling the biosynthetic switch of 2-acetyl-1-pyrroline and gamma aminobutyric acid (GABA) in rice. In: Proceedings of the 1st international conference on rice for the future, Aug 31-Sep 3, 2004, Bangkok.
[36]	Wanchana, S., Toojinda, T., Tragoonrung S., and Vanavichit., A. 2003. Duplicated coding sequence in the waxy allele of tropical glutinous rice (Oryza sativa L.). Plant Science 165: 1193–1199.
[37]	Winny Routray & Kalpana Rayaguru. 2018. 2-Acetyl-1-pyrroline: A key aroma component of aromatic rice and other food products, Food Reviews.
[38]	Wongsaprom, C., Sirithunya, P., Vanavichit, A., Pantuwan, G., Jongdee, B., Sidhiwong, N., Siangliw, JL, and Toojinda, T. 2010. Two introgressed quantitative trait loci confer a broad-spectrum resistance to blast disease in the genetic background of the cultivar RD6, a Thai glutinous jasmine rice. Field Crops Research 119: 245-251.

Cite This Article

Plain Text BibTeX RIS

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

Copy | Download

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

Copy | Download

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

Copy | Download

@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}
}

Copy | Download

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 -

Copy | Download

Author Information

Phetmanyseng Xangsayasane

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

Contact Email
Leah Homsengchan

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

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

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

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

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

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

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

Rice Science, Rice Gene Discovery Unit, Kasetsart University Khamphaeng Saen, KhlongLung City, PathumThani, Thailand
Chang-Ho Shin

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

Download PDF

Sections

Plain Text BibTeX RIS

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

Copy | Download

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

Copy | Download

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

Copy | Download

@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}
}

Copy | Download

VL - 9
IS - 1
ER -

Copy | Download