水楊酸檸檬酸對菊花保鮮過程中生理特征的影響論文(已修改)
2025-07-04 18:24 本頁面
【正文】 目 錄摘要 31 引言 42 材料與方法 5 5 5 5 5 53 結(jié)果與分析 檸檬酸處理對葉片內(nèi)光合色素含量的影響 檸檬酸處理對葉片和花內(nèi)可溶性糖含量的影響 檸檬酸處理對葉片SOD活性的影響 檸檬酸處理對葉片POD活性的影響 84 小結(jié)與討論 8參考文獻： 9致謝 10 水楊酸、檸檬酸對菊花保鮮過程中生理特征的影響李金杰，生命科學(xué)學(xué)院摘 要：本文以秋菊鮮切花為材料，用不同濃度的水楊酸、檸檬酸配制成保鮮劑，測定秋菊瓶插過程中葉片和花內(nèi)部分生理特征的變化，結(jié)果表明：隨著瓶插時間的延長，各組秋菊葉片內(nèi)色素含量均增加，其中B組（50 mg/ L水楊酸）、D組（50 mg/ L檸檬酸）增幅較小，也反映出失水較少；在瓶插過程中，總體上各處理組秋菊鮮切花葉片和花內(nèi)可溶性糖含量較對照組高（后期葉片除外），其中D組處理含量最高，在保鮮后期， mg/ mg/ g；葉片內(nèi)POD活性的動態(tài)變化與糖相似：D組處理始終最高；葉片內(nèi)SOD活性的變化差異不大。結(jié)合形態(tài)表現(xiàn)，綜合判斷：加有50 mg/ L的水楊酸和50 mg/ L的檸檬酸的兩種保鮮劑，對秋菊鮮切花有較好的保鮮作用。關(guān)鍵詞：秋菊鮮切花；保鮮劑；水楊酸和檸檬酸；生理特征The Effect on Physiological Characteristics of SA and CA during the Preservation Process of Dendranthema morifolium Cut FlowerLI Jinjie, College of Life SciencesAbstract: In this paper, Dendranthema morifolium cut flower used as the experiment material, treated with different concentrations of SA and CA and the physiological characteristics of the leaves were studied. The results showed that the longer the bottle inserting process, the more the contents was of chlorophyll in each group, and it was a relatively small increase in group B(50 mg/ L SA)and group D(50 mg/L CA), which reflected less water loss. During the bottle inserting process, the soluble sugar content in the leaves and flowers of the Dendranthema morifolium cut flower of the experimental group were higher than that of the control group (except the leaves in the later process). Group D has the highest processing content, and in the later the processing, sugar content in the leaves and the flowers had reached mg/g and mg/g respectively. The dynamic change of the activity of POD in the leaves was similar to that of the carbohydrate: POD activity in group D was highest. The dynamic change of the SOD activity in the leaves was not obviously. Combining the form of each group, this paper conclud
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