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.
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)
关键词
光强
胡麻
生长
light intensity
Linum us itatissmum L.
growth
