不同浓度硅、钙对留兰香幼苗生长和生理特性的影响  

Effects of different concentrations of silicon and calcium on the growth and physiological characteristics of Mentha spicata seedlings

作　　者：王梦琦 王菲 赵琬璐 刘彦奇 崔灿 严俊鑫[1] WANG Meng-qi;WANG Fei;ZHAO Wan-lu;LIU Yan-qi;CUI Can;YAN Jun-xin(Northeast Forestry University,College of Landscape Architecture,Harbin 150040,China)

机构地区：[1]东北林业大学园林学院,黑龙江哈尔滨150040

出　　处：《草业学报》2025年第3期154-163,共10页Acta Prataculturae Sinica

基　　金：中央高校基本科研业务费专项资金(NO.2572021BK01)资助。

摘　　要：为探究施用硅和钙对留兰香幼苗生长的影响,设置不同浓度硅(500、1000、2000 mg·kg^(-1))和钙(400、800、1200 mg·kg^(-1))处理,测定幼苗生长和生理指标。结果表明:与对照组相比,除2000 mg·kg^(-1)硅外,其他浓度硅、钙处理对留兰香的生长起促进作用,1000 mg·kg^(-1)硅和800 mg·kg^(-1)钙的促进作用较强。硅处理后可溶性糖和可溶性蛋白含量相比对照有所下降,2000 mg·kg^(-1)硅显著提高了脯氨酸含量、过氧化氢酶和过氧化物酶活性,丙二醛含量和细胞膜相对透性相比对照有所增加;多数钙处理后渗透调节物质含量和抗氧化酶活性相比对照均有增加,丙二醛含量和细胞膜相对透性均有降低。主成分和隶属函数分析表明,800和400 mg·kg^(-1)钙、1000 mg·kg^(-1)硅能促进留兰香生长,可为筛选出适宜留兰香生长的硅、钙浓度提供参考。In order to investigate the effects of silicon and calcium application on the growth of Mentha spicata seedlings,treatments comprising different concentrations of silicon(500,1000,2000 mg·kg^(-1) applied as sodium metasilicate,NaSiO_(3)·9H2O)and calcium(400,800,1200 mg·kg^(-1) applied as anhydrous calcium chloride CaCl2)were set up to determine the growth and physiological parameters of the seedlings.The results showed that,compared with the control group,all concentrations of silicon and calcium treatments,except 2000 mg·kg^(-1) silicon,promoted the growth of M.spicata,with 1000 mg·kg^(-1) silicon and 800 mg·kg^(-1) calcium having the strongest promotional effect.Soluble sugar and soluble protein contents decreased after silicon treatment,2000 mg·kg^(-1) silicon significantly increased proline content,catalase and peroxidase activity,and malondialdehyde content and cell membrane relative permeability increased compared with the control;most of the calcium treatments increased levels of osmotic regulatory substances and antioxidant enzyme activities compared with the control,while malondialdehyde content and cell membrane relative permeability were decreased.Principal component and subordinate function analyses showed that 800 and 400 mg·kg^(-1) calcium and 1000 mg·kg^(-1) silicon promoted the growth of M.spicata.These results provide reference data for selecting suitable silicon and calcium concentrations in soil for M.spicata growth.

关 键 词：留兰香 硅、钙 生长形态 渗透调节物质 抗氧化酶 膜脂过氧化 

分 类 号：S573.9[农业科学—作物学]