Effect of Salt on Growth of Rice Landraces in Vietnam

Anh, La Hoang; Hue, Hoang Thi; Quoc, Nguyen Kien; Nghia, La Tuan; Trung, Khuất Hữu; Trung, Tran Ngoc; Trang, D.H.; Xuan, Tran Dang; Khanh, Tran Dang

doi:10.18052/www.scipress.com/ilns.59.72

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…Since 2015, rice production in the Mekong Delta has been confronted with climate change, which poses a serious environmental threat, as sea-level rise directly affects coastal areas. In 2016, about 600,000 hectares affected by drought and saline intrusions caused economic losses of up to VND 15 trillion (≈ 670 million USD) (Anh et al 2016). In the Mekong Delta, the government has invested in structures such as dikes and dams to minimize salt intrusion from the rivers and canals.…”

Section: Introductionmentioning

confidence: 99%

Participatory selection of CWR‐derived salt‐tolerant rice lines adapted to the coastal zone of the Mekong Delta

et al. 2021

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Climate change is affecting agricultural production in the coastal areas of the Mekong Delta through the intrusion of salinity into the rice fields, where farmers cultivate photoperiod-sensitive rice varieties with long growth duration and low grain yields. A set of 12 stable Crop Wild Relative (CWR)derived rice lines with introgressions from wild rice Oryza rufipogon and O. nivara was evaluated for their phenotypic response to salinity tolerance by a participatory selection approach on farm in the Phuoc Long and Gia Rai districts, Bac Lieu province. The evaluation of the results showed that four lines derived from CWR are well adapted to the local environmental conditions, with high grain yield (>6.5 tons/ha), early maturity, and short plant height. These CWR-derived lines were adopted by farmers and proposed for testing on a larger scale in different areas of the coastal zone.

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Section: Introductionmentioning

confidence: 99%

Participatory selection of CWR‐derived salt‐tolerant rice lines adapted to the coastal zone of the Mekong Delta

et al. 2021

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“…These varieties showed high salt tolerance at level 5 with 10% to 12.5% salinity, respectively [76]. Similarly, three other native rice varieties, Chanh trui, Cuom dang 2, and Nep cuc, disclosed a strong salinity tolerance (level 3) in both bioassays and field screening [77]. Rice variety BT7 was introduced with Saltol QTL to improve salt tolerance by crossing it with FL478-Saltol, a salt tolerance donor variety.…”

Section: Improvement Of Biotic and Abiotic Stress Tolerances To Stabi...mentioning

confidence: 99%

Rice Breeding in Vietnam: Retrospects, Challenges and Prospects

Khanh

Duong²,

Nguyen

et al. 2021

Agriculture

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Rice breeding was conducted for a long time during historical times and is an important job in Vietnam because rice is the major food for domestic consumption and export. In this review, we have provided a comprehensive insight into the importance of promising rice germplasm resources, breeding achievements, and breeding approaches as well as discussed challenges and perspectives of rice breeding in this country. With rice germplasm and wild rice relative resources with rich and various genetic diversity, their useful genes and traits have been exploited and integrated into commercial varieties as the final outputs of rice breeding programs. New achievements of the modern genetics era have been approached and effectively contributed to breeding activities in this country. Genome sequences, molecular breeding, and mutation are powerful tools and playing vital roles in developing new varieties with characteristics of interest that should be followed by the current market demands. In the last decades, there has been a plethora of newly generated varieties by Vietnamese scientists and rice breeders and approved by the state authorities. However, very few domestic mega varieties have prevailed over the imported varieties. Therefore, rice breeding in this country is faced with big challenges, including limitations of backgrounds, budgets, and even talents in basic research to compete with other rice-producing countries. The target goals and long-term approaches for rice breeding should be paid explicitly in priority to ensure national food security and the advantage and development of rice breeding in this country.

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“…Vietnam is known to be the center of rice diversity germplasm. Rice landraces are much diversified and played a key role in rice breeding for rice quality improvement in this country [4]. Among rice germplasm, local-colored rice landraces are abundant in this country, therefore, it should be exploited to develop commercial rice of high quality and rich medicinal value via rice breeding program.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Genetic Diversity of Local-Colored Rice Landraces Using SSR Markers

Hue

Nghia

Minh³

et al. 2018

ILNS

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Analysis of genetic diversity of 90 Vietnamese local-colored rice accessions was evaluated by using 40 SSR markers. The numbers of polymorphic alleles ranged from 3 to 12 alleles per locus and average of 7.1 alleles per locus. The similarity coefficients of the rice landraces fluctuated from 0.76 to 0.93; at a genetic correlation level of 0.78. Ninety accessions of rice landraces were divided into five groups based on analysis of genetic relationships. The results have indicated that 11 markers included: M250, RM302, RM10926, RM208, RM227, RM17231, RM23251, RM5647, RM1376, RM339 and RM228 which gave the unique allele. These markers can be used effectively for genetic diversity of colored rice and provided a specific database and useful materials for landraces identification, local germplasm conservation for further colored rice improvement on rice quality via rice breeding programs in Vietnam.

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Effect of Salt on Growth of Rice Landraces in Vietnam

Cited by 7 publications

References 11 publications

Participatory selection of CWR‐derived salt‐tolerant rice lines adapted to the coastal zone of the Mekong Delta

Participatory selection of CWR‐derived salt‐tolerant rice lines adapted to the coastal zone of the Mekong Delta

Rice Breeding in Vietnam: Retrospects, Challenges and Prospects

Evaluation of Genetic Diversity of Local-Colored Rice Landraces Using SSR Markers

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