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Publication
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| Title of Article |
ADAPTATION OF RICE GENOTYPES TO DIVERSE RAINFED LOWLAND PADDY CONDITIONS |
| Date of Acceptance |
20 August 2019 |
| Journal |
| Title of Journal |
SABRAO Journal of Breeding and Genetics |
| Standard |
SCOPUS |
| Institute of Journal |
The Society for the Advancement of Breeding Research in Asia and Oceania |
| ISBN/ISSN |
1029-7073 |
| Volume |
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| Issue |
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| Month |
September |
| Year of Publication |
2019 |
| Page |
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| Abstract |
Climatic changes are obstacle for rice production especially under rainfed condition. Rice 13 production is affected by the variability of rain. The evaluation of rice genotypes in diverse 14 paddy conditions, planting time and locations was conducted under rainfed lowland farmer 15 conditions. The experiment was conducted in different number of locations in each year, two 16 in 2013, three in 2014 and 10 in 2015 under two toposequences as top and bottom, except at 17 Huatapan and Sumrong, middle toposequence was included and three planting dates, 18 comprising a total of19 plots throughout Northeast of Thailand. Totally 12genotypes were 19 used. However, number of genotypes used was different in each year, 6 genotypes in 20 common were used in 2013 and 2014 and 9 genotypes with three in common with 2013 and 21 2014 were used in 2015.The experimental layout was completely randomized with single 22 replication. Therefore, number of toposequences, planting dates and genotypes were treated 23 as replications for analysing the difference among locations, similarly in analysis for 24 toposequence, planting date and genotypes were treated as replications.The results showed 25 that there were significant differences among the locations, toposequences, planting dates and 26 genotypes. Cluster analysis was conducted based on grain yield for growing environments 27 (plot) and genotypes. Six groups of growing environments and three groups of genotypes 28 were identified. Relationship between environment and genotype grain yield showed that 29 twogenotype groupswhich have higher yield potential with photoperiod sensitivity responded 30 similarly and obtained higher grain yield than the group with photoperiod insensitivity. The 31 results suggested that under unpredictable climatic condition such as rainfed lowland rice in 32 Northeast of Thailand, photoperiod sensitivity would be recommended. Furthermore, the 33 selection based on diverse environment conditions such as location, toposequence even 34 plating time in each farmer field was highly different in rice responses but good for target 35 area selection. |
| Keyword |
Multi-environment trials, toposequence, rice variety, planting date, photoperiod sensitivity, rainfed condition |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Attach file |
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| Citation |
0
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Journal Publication
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