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以菊花“兼六香菊”品种为试材,研究了定头至花芽分化期喷施10、15、20mg/L 3种浓度的马来酰肼(MH)水溶液对“兼六香菊花期”生理生化动态及花径、株高和花期的影响。结果表明:各处理花瓣中的可溶性蛋白与可溶性糖含量都有一定程度的下降,超氧化物歧化酶(SOD)与过氧化物酶(POD)活力均受到不同程度的抑制,而丙二醛(MDA)含量、超氧阴离子(O2.)产生速率以及花瓣浸出液的相对电导率等不利的生理指标降低较为明显。总体反应为负面生理指标的减低幅度大于正面生理指标。处理组花径减小,株高降低,开花推迟,花期延长。其中以MH15mg/L处理优化观赏价值、延长花期最为适中。
The effects of 10, 15 and 20 mg / L maleic hydrazide (MH) aqueous solution on the quality of Chrysanthemum ’Physiological and Biochemical Dynamics and Flower Size, Plant Height and Flowering. The results showed that the content of soluble protein and soluble sugar in the petals decreased to a certain extent, the activities of superoxide dismutase (SOD) and peroxidase (POD) were inhibited to some extent, but malondialdehyde MDA content, the production rate of superoxide anion (O2.) And the relative conductivity of the petal leachate decreased more obvious adverse physiological indicators. The overall response to negative physiological indicators of the reduction is greater than the positive physiological indicators. The flower diameter of treatment group decreased, plant height decreased, flowering delayed and flowering prolonged. Among them, the optimal ornamental value was treated with 15 mg / L MH15, and the most suitable flowering period was extended.