【摘 要】
:
Effects of cinnamic acid on the physiological characteristics of cucumber(Shandong Mici)seedlings under salt stress were studied,and the best concentration and
【机 构】
:
Horticultural College,Northeast Agricultural University,Harbin 150030,China
论文部分内容阅读
Effects of cinnamic acid on the physiological characteristics of cucumber(Shandong Mici)seedlings under salt stress were studied,and the best concentration and treatment time were ascertained.The results showed that cinnamic acid relatively increased the leaf relative water content and the chlorophyll content,decreased plasma membrane permeability,mitigated membrane damage,inhibited the accumulation of malondialdehyde(product of membrane lipid peroxidation),and promoted the activity of membrane protective enzymes such as super oxide dismutase and peroxidase,therefore improving the adaptabilities of cucumber to salt stress.It is concluded that the best treatment time of cinnamic acid is in the two euphylla period,and the best treatment concentration of cinnamic acid is 50 μmol/L.
其他文献
求平面内的图形关于某一点(即对称中心)或某一直线(即对称轴)对称图形的问题,是中学数学里常见的几何问题,很多学生在解决这类问题时常感到苦恼:一种原因是解题不得要领,不能
今年,在社会新闻的采访写作上,记者朱巍同志初露锋芒,从4月至8月连续在《河南日报》周末版发稿6篇。其中,《魔球》(1988年4月23日,同黄润涛合写)和《魔风》(1988年8月13日,
叶色突变体是自然界中比较常见的一种突变类型,很早就被人们所关注。叶绿素是绿色植物叶绿体内参与光合作用的主要色素,当与叶绿素代谢途径相关的基因发生突变时或者叶绿体发
芭蕉属植物线粒体基因组是父系遗传,选择进化速率适中的线粒体基因组序列可进一步探究香蕉种质资源的分类和遗传关系;帮助我们认清香蕉的父系系谱关系,扩大香蕉种质资源的遗传
很多高职院校都面临图书馆资源利用率低的问题,这与馆藏建设及服务水平有着深刻的关联。图书馆工作人员应在科学原则的指导下,努力改善采购工作,以用户需求为采购的根本,发展馆际
A molecular map of melon (Cucumis melo L.) was constructed with SRAP (Sequence-Related Amplified Polymorphism) markers using a population consisting of 114F2 in
(一)台湾著名油画家冉茂芹,是我于20世纪50和60年代、在广州美术学院附中和大学时代的老校友。在我准备动笔为他写文章的时候,很自然就在记忆中浮现出了今年五月著名雕塑大师
The effects of upland cotton root exudates on the growth and development of Verticillium dahliae were studied, through the compared analysis of the root exudate
重要的两步如何采访,方法很多,有专门的采访学。我以为,采访过程最重要的是两步。第一步、寻找、挑选、确定线索。前面已经提到:采访就是为了挑选新闻事实,而新闻事实又是置
Hypersensitive response(HR)is one of the most efficient and common resistance mechanisms in plants.Cloning signaling genes are very important to elucidate the r