期刊论文

Physiological Response of Keteleeria davidiana to NaHCO3 Stress

中文

绿色科技

1674-9944

2022

24

9

77-81

10.3969/j.issn.1674-9944.2022.09.017

国家林业局重点学科（编号：林人发[2016]21号）； 湖南省“双一流”培育学科（编号：湘教通[2018]469号）； 国家林业局“十三五”重点学科项目（编号：[2015]44）； 湖南省林业科技创新专项（编号：XLK201902）； 2021年林业科技推广补助资金（编号：湘财资环指（2021）9号）；

本校为第一机构

以铁坚油杉幼苗(Keteleeria davidiana(Bertr.)Beissn.)为材料,用质量浓度为0％(CK)、0.5％、1.0％、1.5％ 和2.0％ 的NaHCO3进行胁迫,研究了铁坚油杉在NaHCO3胁迫的响应机制,为其引种、推广和应用提供理论依据.结果表明:随胁迫时间延长,0.5％NaHCO3处理下,测得的各项生长和生理指标均与CK无显著差异(P>0.05);在1.0％NaHCO3处理下,胁迫至40 d,铁坚油杉叶片的超氧化物歧化酶活性显著低于CK(P

Keteleeria davidiana(Bertr.)Beissn.seedlings were used as experimental materials,which were treated under salt stress of 0%(CK),0.5%,1.0%,1.5%and 2.0%NaHCO3 in the soil.The response mechanism of NaHCO3 stress provides theoretical basis for its introduction,promotion and application.The results showed that with the prolongation of stress time,under 0.5% NaHCO3 treatment,the measured growth and physiological indexes were not significantly different from those of CK(P>0.05).Under 1.0% NaHCO3 treatment,the superoxide dismutase activity was significantly lower than that of CK(P