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To explore the effects of amino acid chelated zinc on the yield and quality of wheat, Zhengmai 1860 was used as the experimental material. The treatments included spraying 0.2% and 0.4% concentrations of zinc sulfate, zinc aspartate, and zinc glycinate after anthesis, with spraying water as the blank control. The effects of zinc spraying on the yield and quality of wheat were studied. The results showed that spraying 0.2% zinc aspartate significantly increased the 1 000-grain weight of wheat at the two experimental sites of Longting, Kaifeng and Dancheng, Zhoukou by 6.17% and 6.58%, respectively; significantly increased the grain yield of wheat at the two sites by 5.05% and 5.32%, respectively; and significantly increased the bulk density of wheat at the two sites by 2.16% and 2.32%, respectively. Spraying zinc significantly reduced the degree of softening of wheat flour at the two sites by 16.06% to 26.98% and 12.21% to 34.27%, respectively. Spraying zinc aspartate significantly increased the wet gluten content of wheat flour at the two sites by 5.72% to 10.51% and 5.28% to 6.53%, respectively; significantly increased the maximum resistance of dough at the two sites by 17.27% to 20.96% and 12.25% to 14.13%, respectively; and significantly increased the sedimentation index of wheat flour at Longting, Kaifeng site by 19.69% to 28.14%. Spraying 0.2% zinc glycinate significantly increased the wet gluten content of wheat flour at the two sites by 6.27% and 7.40%, respectively; significantly increased the resistance at constant deformation of dough at the two sites by 18.37% and 8.21%, respectively; and significantly increased the dough development time and stability time of wheat flour at the Dancheng, Zhoukou site by 36.53% and 30.78%, respectively. In conclusion, spraying 0.2% zinc aspartate after anthesis can increase the 1 000-grain weight, grain yield and test weight of wheat, reduce the degree of softening of wheat flour, and increase the wet gluten content and tensile resistance of dough.
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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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