摘要
采用双套盆法,以丝瓜品种‘江蔬1号’为材料,研究了不同时间(淹水0、14、21 d和恢复7 d后)和不同程度淹水处理(根淹、半淹)后丝瓜幼苗生长及呼吸代谢的变化规律。结果显示:与对照相比,淹水胁迫下丝瓜幼苗生长受到抑制,叶绿素含量降低,相对电导率、MDA含量、O2·^-产生速率、H2O2含量、乳酸脱氢酶(LDH)活性、乙醇脱氢酶(ADH)活性、脯氨酸含量和可溶性糖含量均升高,而苹果脱氢酶(MDH)活性显著降低;半淹处理丝瓜幼苗的上述指标的变化幅度显著大于根淹处理的,且淹水14 d后与淹水21 d后测定的各指标有显著性差异。
The change rule of the plant growth and respiratory metabolism were studied under different treatment times(0,14,21 d,recovery 7 d)and different levels(root flooded and half submerged)of the luffa variety‘Jiangshu No 1’.The results showed that the plant growth were inhibited,the chlorophyll contents and the malate dehydrogenase(MDH)activities were decreased,while MDA contents,O2·^-producing rate and H2O2 content,the activities of the lactate dehygrogrnase(LDH)and alcohol dehydrogenase(ADH),contents of proline and soluble sugar were significantly increased.The change of half submerged was significantly higher than that of root flooded,and there was a significant difference between the indexes measured after 14 days and 21 days of submersion.
作者
刘晓慧
伍海兵
张圣美
尚静
张爱冬
朱宗文
田守波
吴雪霞
LIU Xiao-hui;WU Hai-bing;ZHANG Sheng-mei;SHANG Jing;ZHANG Ai-dong;ZHU Zong-wen;TIAN Shou-bo;WU Xue-xia(Shanghai Ocean University,Shanghai 201306,China;Horticultural Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China;Shanghai Key Laboratory of Protected Horticultural Technology,Shanghai 201403,China)
出处
《江西农业学报》
CAS
2020年第3期48-54,共7页
Acta Agriculturae Jiangxi
基金
国家大宗蔬菜体系(CARS-25)
上海市农业科学院卓越团队建设项目[农科创2017(B06)]。
关键词
丝瓜
淹水胁迫
幼苗生长
呼吸酶活性
Luffa
Waterlogging stress
Seedling growth
Respiratory enzyme activity
作者简介
刘晓慧(1996─),山西人,硕士,从事蔬菜作物生理生化研究;通信作者:吴雪霞。
