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使用夏菊品种“夏黄”为材料研究了定植日期和摘心对夏菊切花产量分布及品质的影响,结果表明:秋季到春夏季扦插定植都不影响夏黄正常开花,但是随着定植时间的延迟,花枝长度明显缩短,切花品质下降,始花期也延迟,而扦插到开花的天数却减少,产量分布也随着定植日期的延迟而趋于失衡,因此露地栽培时夏黄的扦插时间不能迟于3月下旬,但是以春季尽早定植最为经济。6月28日摘心使产量分布更加均衡,但是对产花高峰没有影响,而花枝长度却下降。施用尿素及摘心位置可能会影响切花的外观品质。本文对夏菊的春化过程及形态发育与生态因子的关系进行了讨论,并对夏黄的反应时间进行了推测。
The effect of planting date and topping on the yield and quality of cut chrysanthemum cuttings was studied by using the summer chrysanthemum variety Xia Xia. The results showed that the cuttings from autumn to spring did not affect the flowering of summer chrysanthemum, but with the planting time Delay, the length of flowering branches was significantly shortened, the quality of cut flowers decreased, the initial flowering period was delayed, and the number of cuttings to flowering days was reduced. The yield distribution also became unbalanced with the delay of planting dates. Therefore, In late March, planting as early as spring is the most economical. Topping on June 28 made the production distribution more balanced, but had no effect on the peak of flower production while the length of flowering branches declined. Urea and topping locations may affect the quality of cut flowers. In this paper, the relationship between the vernalization process of summer chrysanthemum and morphological development and ecological factors was discussed, and the reaction time of summer yellow was presumed.