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Outline
In order to established a quality evaluation system and variety breeding for Daqu-making wheat, 214 wheat materials for Daqu-making were studied, focusing on six common quality evaluation indicators: hardness index, amylopectin ratio, total starch content, protein content, wet gluten content, and test weight. Through comprehensive evaluation and correlation analysis of the six indicators for each sample, materials that met all the requirements for Daqu-making were selected to establish an evaluation group. Statistical analysis was used to determine the range values for individual indicators of Daqu-making wheat. Using 13 commonly used Daqu-making wheat varieties as a validation group, the optimal selection ranges for each indicator were adjusted and determined. Preliminary screening identified 22 materials with potential for Daqu-making that met all the required indicators. Correlation analysis showed that hardness index was significantly positively correlated with protein and wet gluten (P<0.01), but significantly negatively correlated with total starch (P<0.001). Protein was significantly positively correlated with wet gluten (P<0.01), but significantly negatively correlated with total starch (P<0.001). Based on the validation results from the validation group, the optimal selection ranges for the characteristic indicators of Daqu-making wheat were determined as follows: hardness index between 19.37% and 25.93%, total starch content between 66.82% and 72.80%, amylopectin ratio between 87.16% and 90.60%, protein content between 11.07% and 13.35%, wet gluten content between 23.77% and 28.45%, and test weight between 776.29 and 805.87 g·L-1.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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