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To improve the sowing quality of quinoa and increase the field emergence and seedling retention rates, the optimal pelleting coating formula for quinoa was screened. Using Longli 1 and Longli 5 as materials, various pelleting formulas were developed using different filling materials and different addition amounts of binders. The optimal formula was identified by evaluating the pelleting and germination indexes of pelleted quinoa seeds under different formulations. Furthermore, the agronomic and yield traits of quinoa sown with the optimal formula were measured in field trials. The results showed that the optimal formula consisted of 80% talcum powder and 20% bentonite as filling materials, with the addition of 2.5% sodium carboxymethyl cellulose. For this formula, the average germination rate was 91.33%, the average germination potential was 86.00%, and the physicochemical properties of the pelleted seeds were optimal (seed rate 97.33%, single seed rate 95.00%, disintegration rate 93.33%, compressive strength 317.28 g, and 1000-grain weight 14.27 g). Field production trials indicated that this formula had no significant effect on the agronomic traits of quinoa, but it could promote germination and enhance yield. The quinoa seed pelleting formula screened in this study meets all quality indicators and contains green and safe ingredients. It can regularize seed shape, effectively promote seed germination and yield improvement, and provide a theoretical basis for the research and application of quinoa seed pelleting as well as mechanized precision sowing.
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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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