基质配比对向日葵容器苗根系生长的影响  

Effects of different treatments on root and shoot biomass of sunflower

作　　者：夏康生 郭晶晶 沈雅君 李炳宇 王红兵[1] XIA Kangsheng;GUO Jingjing;SHEN Yajun;LI Bingyu;WANG Hongbing(College of Life Sciences,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]上海师范大学生命科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2020年第6期671-676,共6页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海市科委项目(18DZ1204703,FG201900188,17DZ2252700)。

摘　　要：采用单因素完全随机设计,设置3种基质配比(火山石、黏土),对向日葵(Helianthus annuus)生长季末的苗高、茎粗、生物量,以及根系体积、表面积、长度、根尖数、平均直径进行分析。结果表明:基质配比对向日葵生长的影响显著,主要体现在干物质积累、根系发育,及土壤物理指标方面。通过对比,提供了一种较理想的基质配比,可培育高质量向日葵一年生容器苗,并提高向日葵产量。The experiment was designed in a completely random way using a single factor of cultivation substrate compositions(lapilli and clay soil).Sunflower(Helianthus annuus)lived in the substrates were analyzed on their height,stem diameter,biomass,root volume,root surface area,length,root tip number at the end of the growing season.The results showed that there were significant influences of substrate compositions on sunflower growth,which mainly embodied in the accumulation of dry biomass,root system development,and soil physical indicators.Finally,an optimal substrate composition was found and used for the annual container seedlings of sunflower to increase its quality and yield.

关 键 词：向日葵(Helianthus annuus) 小规格容器苗 基质配比 生物量 根系生长 

分 类 号：S62[农业科学—园艺学]