摘要
[目的]探明外源钙对苍术幼苗生长及生理指标的影响,为苍术栽培环境的选择提供依据。[方法]以苍术幼苗为试材,分别喷施5、10、15、20 mmol·L^(-1)CaCl_(2)溶液,以未喷施为对照(CK)。比较不同处理下苍术幼苗根茎与叶的生长及生理指标。[结果]10 mmol·L^(-1)CaCl_(2)处理苍术幼苗根茎与叶的鲜质量比(1.92)及叶绿素含量(2.16 mg·g^(-1))均最大,且与CK差异达显著水平;外源钙可提高苍术幼苗根茎和叶的可溶性蛋白含量,5、10、15和20 mmol·L^(-1)CaCl_(2)处理根茎可溶性蛋白含量分别比CK提高了39.72%、36.39%、23.87%、25.44%,叶的可溶性蛋白含量分别比CK提高了25.28%、47.23%、15.26%、23.52%;适量浓度的外源钙可显著提高根茎(5、10和15 mmol·L^(-1)CaCl_(2)溶液)和叶(10、20 mmol·L^(-1)CaCl_(2)溶液)的可溶性糖含量,并降低黄酮含量。[结论]低浓度(10 mmol·L^(-1)CaCl_(2)溶液)外源钙可增强苍术幼苗的光合作用以及抗氧化和渗透调节能力,从而增强其抗逆性。
[Purpose]The effect of exogenous calcium chloride on the growth and physiology of Atractylodis rhizoma seedling was investigated to provide a scientific basis for the establishment of cultivation environment.[Method]After sprayed with or without calcium chloride(0,5,10,15 and 20 mmol·L^(-1)),A.rhizoma seedlings were compared in physiological index and growth of rhizome and leaf.[Result]Treatment with 10 mmol·L^(-1)of calcium chloride resulted in the highest rhizome-leaf fresh weight ratio of 1.92 and greatest chlorophyll content of 2.16 mg·g^(-1),which were significantly different from CK.With the increased concentrations of calcium chloride,the soluble protein contents were increased by 39.72%,36.39%,23.87%,25.44% in the rhizome and 25.28%,47.23%,15.26%,23.52% in the leaf.Meanwhile,appropriate concentration of calcium chloride was contributed to higher soluble sugar contents in rhizome(5,10 and 15 mmol·L^(-1))and leaf(10 and 20 mmol·L^(-1)),while reduced flavonoids contents.[Conclusion]Low concentration(10 mmol·L^(-1))of exogenous calcium chloride can enhance photosynthesis,antioxidant and osmotic regulation capacities of A.rhizoma,and ultimately enhanced its resilience.
作者
赫卫
颜龙
高欣晨
HE Wei;YAN Long;GAO Xinchen(Department of Pharmacy,Guizhou University of Traditional Chinese Medicine,Gui'an,Guizhou 550025,China)
出处
《亚热带农业研究》
2022年第4期246-251,共6页
Subtropical Agriculture Research
基金
贵州中医药大学博士启动基金项目([2020]43号)。
关键词
苍术
外源钙
生理指标
Atractylodis rhizoma
exogenous calcium chloride
physiological index
作者简介
第一作者:赫卫(1981-),女,讲师。研究方向:中药栽培。Email:hw.he@aliyun.com。
