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在大麦（ＨｏｒｄｅｕｍｓａｔｉｖｕｍＬ．）拔节期喷施不同浓度烯效唑（２０、４０、６０ｍｇ／Ｌ）的试验结果表明：①喷施对产量直接影响不大，年度间反应不同，品种间存在一定差异．但各品种经烯效唑加钾混合处理后，因穗、粒、重产量构成因素均明显改善，均显著或极显著增产；②烯效唑具有延缓衰老作用，处理后明显提高大麦生育后期功能叶的光合色素含量、叶面积指数、根系活力；加钾处理能强化延缓衰老作用．其原因与生育后期保持较高的超氧物岐化酶（ＳＯＤ）和过氧化物酶（ＰＯＤ）活性有关；③提高植株总氮量，灌浆初期，促进氮元素向籽粒运转；也可进一步提高植株总钾量．加钾和赤霉素可提高烯效唑作用；④烯效唑对三类型大麦（二棱、四棱和六棱）敏感性基本一致，均有５０％左右品种（系）不敏感或敏感性较弱，１０％左右品种（系）极敏感，３５％左右品种（系）敏感性较强．
The results of spraying different concentrations of uniconazole (20, 40, 60 mg / L) at the jointing stage of barley (Hordeum sativum L.) showed that: ① spray had little direct effect on the yield, different reaction during the year, and there were some differences among varieties. However, the combination of uniconazole and potassium increased the yield of all the cultivars significantly increased due to the increase of spike, grain and weight of all varieties, both significantly and extremely significantly. (2) Uniconazole had anti-aging effects, Leaf photosynthetic pigment content, leaf area index, root activity; plus potassium treatment can enhance anti-aging effect. The reason is related to the higher superoxide dismutase (SOD) and peroxidase (POD) activity maintained in the late growth period; (3) Increasing the total nitrogen content of the plant and the early filling can promote the movement of nitrogen to the grain; Plant total potassium. Adding potassium and gibberellin can enhance the action of uniconazole; (4) Uniconazole sensitivity to three types of barley (two edges, four edges and six edges) are basically the same, about 50% are insensitive or sensitive Weak, about 10% of varieties (lines) very sensitive, about 35% of varieties (lines) strong sensitivity.