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The absorption of selenium by tartary buckwheat to form selenium-enriched characteristics is of great significance for promoting the high-quality development of the tartary buckwheat industry. In this study, 30 representative tartary buckwheat germplasm resources were selected to measure their agronomic traits, dry matter accumulation and translocation characteristics, as well as yield and grain trait indicators. Foliar application of selenium fertilizer was set as a treatment. Principal component analysis (PCA), cluster analysis, and GGE biplot analysis were comprehensively utilized to conduct a thorough evaluation of the growth, development, and selenium response characteristics of different tartary buckwheat germplasms. The results showed that significant variations existed among different tartary buckwheat germplasm resources in terms of agronomic traits, dry matter accumulation and translocation characteristics, yield and its components, and selenium accumulation, distribution, and enrichment traits. Furthermore, foliar selenium application exhibited a promoting effect on all measured growth and development indicators of the germplasm resources. Through cluster analysis, ten selenium-sensitive, 12 selenium-intermediate, and eight selenium-insensitive germplasm resources were screened. GGE biplot analysis identified YYMY002 as a germplasm with high yield, high selenium enrichment, and relative comprehensive superior traits.
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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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