Correlation Analysis of Resistance Starch Content and Grain Quality in Various Genotypes Rice
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摘要: 对不同基因型水稻的米质和抗性淀粉含量进行相关性分析,同时根据各基因型水稻的米质进行了聚类和主成分分析。结果表明,粳稻米质优于籼稻;抗性淀粉含量与直链淀粉含量、垩白粒率有显著的相关性,籼稻中的抗性淀粉含量与品质性状有着更宽范围的相关性;聚类分析以欧式距离24.55为标准,将37份水稻材料分为6类,且具有明显的米质优劣划分;主成分因子对稻米品质的影响程度为:外观品质因子 > 蒸煮品质因子 > 碾磨品质因子,而抗性淀粉可归类到蒸煮品质因子中,对米质影响的贡献率达到19.48%。Abstract: A clustering and principal component analysis was conducted to study the correlation between the grain quality and resistance starch content in various genotypes rice.The results indicated that the grain quality of japonica was better than that of indica. There existed an significant correlation among the resistance starch content, amylose content, and chalkiness of the rice varieties. A significant correlation was found between the resistance starch content and quality indicators in indica rice. A total of 37 rice varieties were divided into 6 distinctive categories according to the clustering analysis using 24.55 for the Euclidean distance. Among the principal quality indicators, the appearance factor > cooking factor > milling factor. In addition, the resistance starch could be considered as a part of the cooking factors that affected the total quality, with a 19.48% contribution rate.
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Key words:
- rice /
- resistance starch /
- grain quality indicators /
- correction /
- difference
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表 1 抗性淀粉含量和米质性状的籼粳差异
Table 1. Differences between indica and japonica on resistance starch content and grain quality
品种类型 项目 糙米率BRR 精米率RR 整精米率RR 粒长GL 垩白粒率CR 垩白度CD 透明度TP 糊化温度PT 直链淀粉AC 胶稠度GC 抗性淀粉RS 全部品种 平均值 79.33 67.8 40.97 5.9 46.3 15.8 2.22 5.95 15.68 78.78 3.34 标准差 1.67 3.56 13.06 0.91 30.24 13.53 1.2 1.11 4.89 11.24 4.72 变异系数 2 5 32 16 65 86 54 19 31 14 141 籼稻 平均值 78.84 66.6 41.76 6.28 44.96 14.75 2.15 5.57 16.49 80.43 4.15 标准差 1.83 3.56 13.39 0.76 32.53 13.26 1.2 1.21 5.42 12.26 5.3 变异系数 2 5 32 12 72 90 56 22 33 15 128 粳稻 平均值 80.27 70.06 39.48 4.86 49.94 18.63 2.4 6.68 13.49 74.35 1.15 标准差 0.66 2.34 13.04 0.14 24.09 14.55 1.26 0.18 1.83 6.4 0.83 变异系数 1 3 33 3 48 78 53 3 14 9 72 籼粳差异 t值 2.8856** 2.6126* 0.4168 9.3585** 0.4448 0.7695 0.5592 3.6846** 2.5226* 1.9544 2.8478** t值:字体加粗表示方差齐性,其余为方差不齐性;*,** 分别表示达到5%和1%的显著水平。 表 2 抗性淀粉含量和米质性状的相关性分析
Table 2. Correlation analysis on resistance starch content and grain quality
糙米率BRR 精米率RR 整精米率MRR 粒长GL 垩白粒率CR 垩白度CD 透明度TP 糊化温度PT 直链淀粉AC 胶稠度GC 抗性淀粉RS 精米率 RR 全部 T 0.67** 籼稻 I 0.65** 粳稻 J 0.13 整精米率 MRR 全部 T -0.02 0.35* 籼稻 I 0.02 0.34 粳稻 J 0.03 0.78** 粒长 GL 全部 T -0.44** -0.52** -0.10 籼稻 I -0.17 -0.26 -0.40* 粳稻 J -0.34 -0.34 -0.16 垩白粒率CR 全部 T 0.73** 0.44** 0.12 -0.32 籼稻 I 0.90** 0.65** 0.11 -0.39* 粳稻 J 0.32 -0.10 0.12 -0.48 垩白度 CD 全部 T 0.67** 0.45** 0.18 -0.36* 0.93** 籼稻 I 0.85** 0.65** 0.09 -0.44* 0.94** 粳稻 J 0.48 0.15 0.35 -0.41 0.95** 透明度 TP 全部 T 0.67** 0.43** 0.18 -0.3 0.87** 0.84** 籼稻 I 0.81** 0.54** 0.19 -0.36 0.90** 0.83** 粳稻 J 0.49 0.19 0.20 -0.52 0.80** 0.85** 糊化温度PT 全部 T -0.22 -0.04 -0.06 -0.44** -0.37* -0.31 -0.38* 籼稻 I -0.53** -0.39* -0.06 -0.06 -0.45* -0.43* -0.56** 粳稻 J -0.72* 0.18 0.32 0.12 -0.22 -0.22 -0.11 直链淀粉AC 全部 T 0.11 0.15 0.32* -0.11 0.44** 0.32* 0.24 -0.07 籼稻 I 0.39* 0.48** 0.41* -0.47* 0.58** 0.54** 0.42* 0.15 粳稻 J -0.69* -0.15 -0.14 0.16 -0.52 -0.67* -0.69* 0.26 胶稠度 GC 全部 T -0.29 -0.17 -0.25 0.54** -0.49** -0.49** -0.47** -0.23 -0.35* 籼稻 I -0.20 0.01 -0.24 0.55** -0.51** -0.51** -0.50** -0.11 -0.51** 粳稻 J -0.18 -0.57 -0.83** 0.62* -0.33 -0.42 -0.38 -0.33 0.49 抗性淀粉 RS 全部 T 0.21 0.20 0.13 -0.02 0.39* 0.30 0.23 -0.28 0.85** -0.07 籼稻 I 0.45* 0.48** 0.13 -0.33 0.48** 0.43* 0.34 -0.15 0.85** -0.16 粳稻 J -0.77** -0.01 0.02 0.08 -0.1 -0.23 -0.32 0.51 0.62* 0.10 *,** 分别表示达到5%和1%的显著水平。 表 3 稻米品质性状和抗性淀粉含量的主成分因子及其贡献率
Table 3. Major quality indicators and their contribution rates on grain quality and resistance starch contents of rice withdifferent genotypes
主分量编号 特征值 贡献率/% 累计贡献率/% 1 4.337 39.4273 39.4273 2 2.1424 19.4761 58.9034 3 1.5788 14.3531 73.2565 4 1.0055 9.1407 82.3972 5 0.9077 8.2522 90.6494 6 0.4088 3.7167 94.3661 7 0.2298 2.0888 96.4549 8 0.1657 1.5068 97.9616 9 0.1302 1.1839 99.1455 10 0.0779 0.7081 99.8536 11 0.0161 0.1464 100 表 4 稻米品质性状和抗性淀粉含量主成分向量
Table 4. Major quality indicators on grain quality and resistance starch content of rice with different genotypes
分量来源 特征根向量 因子1 因子2 因子3 因子4 因子5 因子6 因子7 因子8 因子9 因子10 因子11 糙米率BRR 0.3991 -0.1285 -0.1377 0.3512 0.0346 -0.2289 0.27 0.6097 0.3617 0.1388 0.1833 精米率RR 0.3213 -0.1771 0.1636 0.3199 0.5314 0.038 0.4413 -0.3878 -0.3182 -0.0525 -0.059 整精米率MRR 0.1414 0.0149 0.4114 -0.5758 0.5599 0.1154 -0.1137 0.2269 0.2753 0.0967 -0.0507 粒长GL -0.1626 0.5278 -0.2321 -0.2663 -0.0295 0.2094 0.6878 0.0847 -0.0466 0.2051 -0.0315 垩白粒率CR 0.442 0.0844 -0.172 -0.053 -0.1822 0.2231 0.0233 -0.113 0.3342 -0.4328 -0.6081 垩白度 CD 0.4387 0.0206 -0.143 -0.134 -0.1677 0.2557 -0.0995 -0.4741 0.2638 0.3406 0.5048 透明度 TP 0.4108 -0.0033 -0.2651 -0.177 -0.0135 0.2669 -0.2392 0.3707 -0.68 0.0276 0.0191 糊化温度 PT -0.1531 -0.4176 0.3749 0.1483 -0.2965 0.6752 0.1775 0.1704 0.0308 0.1674 -0.0788 直链淀粉 AC 0.1889 0.3688 0.5406 0.0225 -0.263 -0.0167 0.103 0.0848 -0.1053 -0.5208 0.4073 胶稠度 GC -0.205 0.3586 -0.206 0.4397 0.4147 0.4874 -0.2902 0.087 0.1702 -0.1834 0.1721 抗性淀粉 RS 0.1824 0.4762 0.3682 0.3224 -0.1072 -0.094 -0.2289 -0.0192 -0.0728 0.5381 -0.3642 -
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