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在秋菊品种姹紫嫣红的营养生长期,分别用0.05 mmol·L-1,0.25 mmol·L-1和1.25 mmol·L-1 Fe2+(Fe2+来自于FeSO4.7H2O)的水溶液对其进行叶面喷施,初步研究了不同浓度Fe2+溶液对菊花花期花瓣营养状态和花色的影响。结果表明,除了0.25 mmol·L-1 Fe2+处理对菊花花瓣中可溶性蛋白含量表现出提高效应外,不同浓度Fe2+处理降低了菊花花期花瓣干重与鲜重的比值、可溶性糖含量和可溶性蛋白的含量,同时提高了花青素的含量,使菊花花色均有不同程度地改善。其中0.05 mmol·L-1 Fe2+处理对可溶性蛋白含量的下降幅度相对较大,其花期花瓣中花青素的含量也最高,分别为蒸馏水+吐温-80对照1的1.37倍、蒸馏水+吐温-80+PEG的对照2的1.35倍,对菊花花色的改善效果最佳。
In the Qiu Ju variety of colorful vegetative growth period, the leaves were sprayed with 0.05 mmol·L-1, 0.25 mmol·L-1 and 1.25 mmol·L-1 Fe2 + (Fe2 + from FeSO4.7H2O) The effects of different concentrations of Fe2 + on the nutritional status and flower color of petals at daisy stage were studied. The results showed that addition of 0.25 mmol·L-1 Fe2 + increased the content of soluble protein in the petals of chrysanthemum, different concentrations of Fe2 + decreased the ratio of dry weight to fresh weight, soluble sugar content and soluble protein content , While increasing the content of anthocyanins, chrysanthemums have improved to varying degrees. Among them, 0.05 mmol·L-1 Fe2 + decreased the content of soluble protein, and also had the highest content of anthocyanin in the flowering petal, which was 1.37 times that of distilled water + Tween-80 control 1 respectively. The distilled water + tween -80 + PEG 1.35 times the control 2, the best improvement on the chrysanthemum flower color.