Grain Quality of Primal Parental Lines in Hybrid Rice Breeding

WANG Ying-heng; CAI Qiu-hua; LIAO Chang-jian; ZHENG Yan-mei; HE Wei; ZHANG Jian-fu; XIE Hua-an

doi:10.19303/j.issn.1008-0384.2017.03.003

Volume 32 Issue 3

May 2017

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Article Navigation > Fujian Journal of Agricultural Sciences > 2017 > 32(3): 242-247

WANG Ying-heng, CAI Qiu-hua, LIAO Chang-jian, ZHENG Yan-mei, HE Wei, ZHANG Jian-fu, XIE Hua-an. Grain Quality of Primal Parental Lines in Hybrid Rice Breeding[J]. Fujian Journal of Agricultural Sciences, 2017, 32(3): 242-247. doi: 10.19303/j.issn.1008-0384.2017.03.003

Citation:

WANG Ying-heng, CAI Qiu-hua, LIAO Chang-jian, ZHENG Yan-mei, HE Wei, ZHANG Jian-fu, XIE Hua-an. Grain Quality of Primal Parental Lines in Hybrid Rice Breeding[J]. Fujian Journal of Agricultural Sciences, 2017, 32(3): 242-247. doi: 10.19303/j.issn.1008-0384.2017.03.003

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Grain Quality of Primal Parental Lines in Hybrid Rice Breeding

doi: 10.19303/j.issn.1008-0384.2017.03.003

WANG Ying-heng^{1, 2, 3
,},
CAI Qiu-hua^{2, 3},
LIAO Chang-jian³,
ZHENG Yan-mei^{2, 3},
HE Wei^{2, 3},
ZHANG Jian-fu^{1, 2, 3
,
,},
XIE Hua-an^{1, 2, 3
,
,}

1.
College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian China, 350002
2.
Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019, China
3.
Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture, P.R. China/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding/Incubator of National Key Laboratory of Fujian Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences & Technology/Base of South-China, National Key Laboratory of Hybrid Rice/National Rice Engineering Laboratory of China, Fuzhou, Fujian 350003, China

Received Date: 2017-01-15
Rev Recd Date: 2017-02-21
Publish Date: 2017-03-01

Abstract

Abstract

Grain quality of primal parental rice lines is a key element for evaluation in breeding new varieties. This article presents the results of a population structure-based analysis on the quality of 274 primal parental lines of hybrid rice used in China and abroad. It was found that, in general, the average brown rice yield and the transparency, gel consistency and amylose content (AC) of the grains of indica rice exceeded the grading criteria for the 3^rdquality tier. For japonica rice, the brown rice yield, head milled rice rate, and the transparency, gel consistency and AC of the grains met the high quality criteria.The percentages of indica that showed superior quality indices varied between 27.7% to 97.7% among all; while japonica, 16.7% to 100%. Grain chalkiness were low for all indica and japonica. Among indica, chalkiness and AC needed the greatest attention for improvements onthe restorer as well as the maintainer lines; AC was good on the conventional rice; and, the overall quality of IR43 and GIZA 178 tropical indica was considered excellent for breeding purposes. In all, 23 primal parental lines were found to have all 10 quality traits graded as high, or higher than, the 3^rd tier. Hence, they could be potential candidates for breeding new rice varieties. As for the deficiency on grain chalkiness, it was recommended that specific germplasms with the desirable trait be introduced for breeding to mitigate the shortcoming in the future.
- rice primal parental lines,
- indica rice,
- japonica rice,
- grain quality,
- quality improvement

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References(16)

References

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