葡萄糖酸钙对氯胁迫下苋菜叶绿素及光合作用的影响  

Effects of Calcium Gluconate on the Chlorophyll Content and Photosynthetic Parameters of Amaranthus tricolor Seedlings Under Chloride Stress

作　　者：周晓琳 李子双 李洪杰 冯艳 隋方功[3] ZHOU Xiaolin;LI Zishuang;LI Hongjie;FENG Yan;SUI Fanggong(Dezhou Academy of Agricultural Sciences,Dezhou,Shandong 253015;Baodu Street Service Center for Agriculture of Changle County,Wei fang,Shandong 262400;Institute of Agricultural Resource and Environment,Qingdao Agricultural University,Qingdao,Shandong 266109)

机构地区：[1]德州市农业科学研究院,山东德州253015 [2]昌乐县宝都街道农业农村综合服务中心,山东潍坊262400 [3]青岛农业大学资源与环境学院,山东青岛266109

出　　处：《北方园艺》2020年第11期32-36,共5页Northern Horticulture

基　　金：农业部公益性农业行业科研专项资助项目(201103004)。

摘　　要：以花红苋菜为试材,通过向氯胁迫下幼苗期苋菜施加外源葡萄糖酸钙,研究其对叶绿素及光合参数的影响,以期利用葡萄糖酸钙来缓解生产中遇到的植物氯毒害。结果表明:不同浓度葡萄糖酸钙均可减弱氯胁迫对苋菜生长的抑制作用。葡萄糖酸钙能在不同时间(3、6 d)使氯胁迫造成的叶绿素组成和总量的降幅减小。各葡萄糖酸钙处理的叶面积系数比对照均有显著增加。苋菜叶片的净光合速率(Pn)、气孔导度(Gs)和蒸腾速率(Tr)施氯后呈下降趋势,而外源葡萄糖酸钙处理明显减少了其降低幅度,使Pn维持在一个较高的水平。Amaranthus tricolor was used as the material,effects of calcium gluconate on the chlorophyll content,photosynthetic parameters of Amaranthus tricolor seedlings under chloride stress were studied.In order to relief the chloride stress of plant production by using calcium gluconate.The results showed that different concentrations of calcium gluconate all could decrease the inhibition of chloride stress on Amaranthus tricolor seedlings growth.The calcium gluconate decreased amplitude reduction for chlorophyll content in different times.All of the treatments applied calcium gluconate increased LAI significantly higher than CK.Pn,Gs,Tr and Ci of Amaranthus tricolor seedlings showed downtrend under chloride stress,while calcium gluconate reduced the decreasing amplitude,maintained Pn a high level.

关 键 词：苋菜 氯胁迫 葡萄糖酸钙 

分 类 号：S636.4[农业科学—蔬菜学]