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米脂金谷0809的选育经过:2008年在石沟镇管道山种350亩晋谷29,杜兴庄村种谷27个品种比较试验,收获前从中选择了65个优良变异单穗。2009年种在猯卧梁1亩水地上,种了42畦穗畦圃(有些一畦种两穗)。2009年收获前在全田选择了性状一致的不秃顶的优良单株变异300穗组成0809新品系,消除了晋谷29秃顶现象。小区平均亩产502公斤,比小香谷亩产390.0公斤增产28.7%。2010年将0809品系种在远志山、七里庙、磨石沟三村共种15亩,与
Breeding of Mi Zhi Gu Gu 0809: In 2008, 27 varieties of Jin Gu 29 and Du Xing Zhuang Gu 27 were planted in Shigou Town, and 65 excellent mutants were selected before harvest. In 2009, we planted 42 acres of sphagnum on some 1 mu of water in the Wuxiang Liang (some of them have two spikes). Prior to the harvest in 2009 in the field selected a consistent performance of non-bald good single plant Variety 300 spike composition 0809 new lines, eliminating the Jin Gu 29 bald phenomenon. Community average yield 502 kilograms, than the small sweet potato yield 390.0 kilograms 28.7% increase. In 2010, 0809 strains will be planted in 15 farms of Yuanzhi Mountain, Qili Temple and Moshitou