论文部分内容阅读
目的:探讨增加光照强度对高纬度地区黑龙江人参生理生化的影响,为提高人参产量提供理论依据。方法:比较春、秋季节适时全光照并增施水杨酸(实验组)与正常遮阴(对照组)下人参超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)活性,丙二醛(MDA)含量及叶绿素a、b含量差异。结果:实验组与对照组相比,人参叶片各酶活性均明显升高,SOD、CAT、POD分别升高27.52%、41.96%、37.70%;MDA含量明显低于对照组,降低了11.23%;叶绿素a无明显变化,但叶绿素b略低于对照组。结论:适时撤去遮阴棚,增加光照强度可以提高黑龙江人参保护酶系统活性,降低MDA含量,不会对人参造成伤害,为人参高产技术提供理论依据。
Objective: To explore the effects of increasing light intensity on the physiology and biochemistry of ginseng in Heilongjiang province at high latitudes, and to provide a theoretical basis for increasing the yield of ginseng. Methods: Compared with the normal shading (control group), the sunshine time and total light of spring and autumn were increased and the contents of superoxide dismutase (SOD), catalase (CAT) and peroxides Enzyme (POD) activity, malondialdehyde (MDA) content and chlorophyll a, b content. Results: Compared with the control group, the activity of each enzyme in the leaves of Ginseng increased obviously, while the contents of SOD, CAT and POD increased by 27.52%, 41.96% and 37.70% respectively. The content of MDA was significantly lower than that of the control group by 11.23%. Chlorophyll a no significant change, but chlorophyll b slightly lower than the control group. Conclusion: The timely removal of the shade shed and the increase of light intensity can increase the activity of protective enzyme system of ginseng in Heilongjiang and reduce the content of MDA, which will not cause harm to ginseng and provide a theoretical basis for the high yielding technology of ginseng.