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在日光温室内对影响夏菊品种‘夏黄’设施栽培的几个因素(苗龄、施肥、补光及赤霉素处理)进行了初步研究。育苗期以高压钠灯补光及赤霉素(GA3)处理均能促进‘夏黄’拔高及节间伸长,并且使花期提前:两者的区别是补光处理使苗期叶数明显增加,而赤霉素处理后苗期叶数并未增加。脚芽苗龄较大时开花较早,而施肥对花期影响不大。‘夏黄’的自然花期在6月下旬,通过补光及赤霉素处理可提前至3月中旬,花期提前3个多月。
A few preliminary studies were conducted on the factors influencing summer cultivar ’Xiahuang’ in summer greenhouse (seedling age, fertilization, fill light and gibberellin treatment) in a solar greenhouse. Seedling raising with high pressure sodium lamp and gibberellin (GA3) treatment can promote ’summer’ elevation and internode elongation, and the early flowering: the difference between the two is the light treatment to significantly increase the number of leaves at seedling stage, The gibberellin treatment seedling leaf number did not increase. Feet sprout older flowering earlier, and fertilization on the flowering has little effect. ’Summer’ natural flowering in late June, by light and gibberellin treatment can be advanced to mid-March, flowering more than 3 months.