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西引二号大麦属半冬性的六棱带壳大麦。株型紧凑,叶姿挺举,冠层透光性好。株高80～90cm,茎秆粗壮,地上部茎秆一般为5节,基部的节间短、秆壁厚、穗颈节较长、弹性好,高抗倒伏。长芒、穗直立。齐穗后主穗和大分蘖穗高度相近,穗层非常整齐。穗长4.5～5cm,穗粒数50～60粒,小穗排列较密集,千粒重30～34克。籽粒黄色,大小较均匀。该品种具有高产、稳产、适应性强等特点,在中上等肥、水条件下亩产可达700～800斤。在肥、水和管理水平高的条件下,亩产可达千斤以上。籽粒内含粗蛋白质11.29～12.45%,淀粉59.1%,赖氨酸含量高达0.827%。成熟的茎叶中,丰含营养成分,为优质粗饲料。为使该品种高产、稳产,需安排在肥、水较好的土地上种植。适时、适量播种,合理密植。
West lead No. 2 barley is a semi-winter hexagonal shell barley. Plant compact, leaf pose jerk, the canopy is good. Plant height of 80 ~ 90cm, stalks stout, shoots above ground is generally 5, the base of the internodes short, stalk wall thickness, panicle longer, good elasticity, high lodging resistance. Long-mans, spike erect. After heading, the main spike and big tillering spike height are similar, and the ear layer is very neat. Spike length 4.5 ~ 5cm, spikelets 50 ~ 60 grains, spikelets arranged more dense, grain weight 30 ~ 34 grams. Grain yellow, more uniform size. The varieties have high yield, stable yield, strong adaptability and other characteristics, in the best fertilizer, water yield up to 700 ~ 800 pounds. Under the condition of high level of fertilizer, water and management, the output per mu can reach above one thousand kilos. The kernels contained 11.29-12.45% crude protein, 59.1% starch and 0.827% lysine. Mature stems and leaves, rich in nutrients, high-quality roughage. In order to make the variety of high yield and stable yield, it needs to be planted on the better land of fertilizer and water. Timely, moderate sowing, reasonable close planting.