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采用３ 种不同浓度的赤霉素（２０、５０、１００ μｇ／ｇ）和矮壮素（５００、１ ０００、１ ５００ μｇ／ｇ）对高羊茅进行叶面喷施，以研究其对高羊茅生长特性及品质的影响。结果表明：赤霉素显著促进地上部分伸长生长，１００ μｇ／ｇ 赤霉素处理生长速度最快。５０ μｇ／ｇ 赤霉素处理高羊茅的干草产量及粗蛋白产量均最高，分别为对照的２．０１、１．８４ 倍。矮壮素抑制地上部分的伸长生长，并促进分蘖，使叶片加宽。１ ５００ μｇ／ｇ 矮壮素处理的高羊茅干草产量、粗蛋白产量分别比对照提高２１．８７％ 、４０．８６％ 。赤霉素处理使高羊茅粗纤维含量有所提高，粗蛋白含量比对照有所下降。矮壮素处理使高羊茅粗蛋白含量提高，粗纤维含量降低。
Three different concentrations of gibberellin (20, 50, 100 μg / g) and CCC (500,1 000,1 500 μg / g) Effect of Fescue Growth Characteristics and Quality. The results showed that gibberellin significantly promoted the growth of above-ground part, and the treatment with 100 μg / g gibberellin had the fastest growth rate. The hay yield and crude protein yield of tall fescue treated with 50 μg / g gibberellin were the highest, 2.01 and 1.84 times of the control, respectively. Chlormequat inhibits the elongation of shoots and promotes tillering, widening the leaves. The yield and crude protein yield of 1 500 μg / g CCC-treated tall fescue increased by 21.87% and 40.86% respectively compared with the control. Gibberellin treatment increased the content of crude fiber of tall fescue and the content of crude protein decreased compared with the control. CCC treatment increased the content of crude fescue and decreased the content of crude fiber.