不同光强对胡麻幼苗生长发育特性的影响  

Effects of Light Intensity on Growth Characteristics of Linum usitatissmum L.

作　　者：徐大鹏[1] 姚泽恩[1] 尹永智[1] 

机构地区：[1]兰州大学核科学与技术学院兰州大学教育部中子应用技术工程研究中心,甘肃兰州730000

出　　处：《现代农业科技》2013年第8期9-10,13,共3页Modern Agricultural Science and Technology

基　　金：兰州大学中央高校基本科研业务费专项(lzujbky-2012-174);甘肃省青年科技基金计划(1107RJYA036)

摘　　要：通过田间遮光试验和实验室弱光试验，探讨不同光照强度对胡麻幼苗生长发育的影响。结果表明：光照强度为自然光的5％～50％N，胡麻的出苗率高于对照组；光照强度为自然光的65％时，胡麻的成苗率最高。随着光照强度的降低。胡麻的株高和节间距呈上升趋势；很弱的光照强度（450lx）使胡麻的幼茎变细，硬度降低，无法发育成苗。The growth characteristics of flax seedling were studied under different light intensity by field test and laboratory test.The results showed that the emergence rate was higher under 5%-50% of natural light, compared with natural light.Seedling rate of Linum usitatissmum L. was max under 65 % of natural light.With the decrease of light intensity, plant height and internode length increased.Weak light intensity （450 lx）made flax young stems thin and lower hardness, which couldn＇t developed into seedlings.

关 键 词：光强 胡麻 生长 

分 类 号：S563[农业科学—作物学]