A new pea varietiy Dingwan 8 was bred through sexual hybridization and pedigree breeding method using A909 as the female parent and 7345 as male parent .Among multi-site tests in 2007—2009 ,the average yield from 15 points was 1 908 .75 kg·hm-2 ,increased by 18 .64% compared to Dingwan 4 (CK ) .Its plant height was about 65 .24 cm .Node numbers of main stem ,effective pods per plant ,and grains per pod were 12 .0 ,4 .38 ,and 4 .02 ,respective-ly .Its 100-seed weight was 21 .30 g .The growth period was 90 days .Crude protein ,lysine ,crude fat ,and starch conten in dry seeds were 26 .93% ,1 .38% ,0 .902% ,and 57 .52% ,respectively .In conclusion ,this variety would be high in yield ,good in drought and root rot resistance ,and suitable to be planted in arid and semi-arid region in Gansu and other similar regions .%定豌8号旱地豌豆新品种，系以A909为母本，7345为父本，采用有性杂交和系谱选育法培育而成。在2007—2009年多点试验中，15点（次）折合平均产量1908．75 kg·hm－2，较对照品种定豌4号增产18．64％，产量表现稳定高产。定豌8号平均株高65．24 cm ，主茎节数12．0节，单株有效荚数4．38个，单荚粒数4．02粒，百粒重21．30 g ，经济性状优良。生育期90 d左右。干籽粒粗蛋白含量26．93％，赖氨酸含量1．38％，粗脂肪含量0．902％，粗淀粉含量57．52％。抗旱、耐根腐病、丰产稳产性好，适宜在甘肃中部干旱、半干旱地区以及同类地区推广种植。
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