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An early-maturing, high-yield, high-starch, wide-adaptability cassava cultivar was bred in Guangxi for fresh consumption or further processing. A newly bred F1 progeny of crossing between the high-yield, XX048 as the female parent and the high-starch NZ199 as the male parent was generated by artificial pollination and induction through prediction of graft breeding. After seedling selection, single row and a series of primary, intermediate, and advanced tests as well as regional and production trials, Guire No. 13 (GR13) was selected. As showed in the several years trial, GR13 delivered an average tuber yield of 47.06 t/hm2, starch content was 32.0%, which was 22.93% and 21.48, 3.74 and 5.30 percentage point higher than that of NZ199 and SC205; Dry matters content of 45.2%, which was 4.7 and 7.5 percentage point higher than that of NZ199 and SC205, and HCN content was 25.7 mg/kg, lower than that of NZ199 and SC205; a rich content of nutrients (based on FW), such as 0.73% on crude fiber, 42.87 mg/hg on vitamin C, 0.75 g/hg on protein, 3% on total sugar, 1.1% on soluble sugar. The early-maturing (over 27.0% on starch content after planted 180 days), high and stable yield GR13 with wide-adaptability was resistent to drought, cold and mites, and its leaves did not fall off easily. It could be adequately cultivated in current cassava-producing areas in Guangxi, Jiangxi, and Yunnan provinces for either fresh consumption, further processing, or as a raw material for manufacturing starch products.
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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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