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山西省地处东经110°17′—114°30′,东西经度差4°13′,北纬35°25′—40°25′,南北纬度差为5°20′,全省境内直线距离将近600公里,南北距离远,太阳辐射有很大差别。又因在黄土高原二级阶梯内,境内丘岗起伐,峁梁逶迤,地势的垂直高差悬殊,形成“一地不同天”的立体农业。大麦广布全省:无论山峦盆地均有种植,尤以盆地为多。由于进行了山西省大麦品种的征集、整理和鉴定,初步认定山西省大麦品种的形态生态特点为;(一)类型与变种:在山西省大麦品种中,以棱形分:二棱大麦亚种占6.96%,多棱大麦亚种占93.04%(内四棱大麦占86.95%,六棱大麦占6.08%);以皮裸分:皮大麦占77.39%,裸大麦占22.61%以株型分:半松型占66.95%,紧凑型和松散型各占16.52%。(表1)
Shanxi province is located at longitude 110 ° 17’-114 ° 30 ’, east-west longitude 4 ° 13’, north latitude 35 ° 25’-40 ° 25 ’and latitude 5 ° 20’ north-south. The province’s straight-line distance is nearly 600 Km, far from north to south, solar radiation is very different. And because of the second step in the Loess Plateau, the rise of mound hill, ridge beam 逶 迤, terrain vertical height difference, the formation of “a different day,” the three-dimensional agriculture. Barley widely distributed throughout the province: regardless of mountain basins are planted, especially in the basin as much. As a result of the collection, sorting and identification of barley varieties in Shanxi Province, the morphological and ecological characteristics of barley varieties in Shanxi Province were preliminarily identified as: (1) Type and Varieties: Among barley varieties in Shanxi Province, Accounting for 6.96%, polygamous barley subspecies accounting for 93.04% (inner quadrangular barley accounting for 86.95%, hexagonal barley accounting for 6.08%); naked skin points: skin barley accounted for 77.39%, bare barley accounted for 22.61% Half loose type accounted for 66.95%, compact and loose type accounted for 16.52%. (Table 1)