期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2018

44

1

45-50

10.13331/j.cnki.jhau.2018.01.009

湖南农业大学国家重点实验室培养基地开放项目

本校为第一机构

采用室内发芽试验,设置温度、光照、土壤含水量、激素浸泡和播种深度等处理,通过分析发芽率、发芽势、发芽指数、活力指数、胚芽长和胚根长等指标,研究环境因子和播种深度对南荻种子萌发及幼苗生长的影响。结果表明:南荻种子在10 ℃下不萌发,在35 ℃时的发芽率最大,达92.00%;对发芽率、发芽势、发芽指数和活力指数进行综合比较后,认为南荻种子萌发的最适温度为30~35 ℃,属于喜高温型种子;南荻种子对光照敏感,光照24 h条件下南荻种子的萌发率最高,达95.33%,且幼苗生长良好;5%土壤含水量即能维持种子发芽所需的水分,表明南荻种子具有一定的耐干旱能力,15%的土壤含水量更适合南荻种子萌发;50 mg/L ...

Effects of environmental factors and sowing depth on the germination and seedling growth of Miscanthus lutarioriparius, an endemic species in central China and a promising potential energy crop, were researched based on set up different treatments including temperatures, illuminations, soil moistures, growth hormones and sowing depths by means of adopting germination rate, germination potential, germination index, vigor index, length of plumule and radicle as indicators. The result indicated that the M. lutarioriparius seed belongs to high temp...