首页> 外文OA文献 >Identification of constraining experimental-design factors in mycorrhizal pot-growth studies
【2h】

Identification of constraining experimental-design factors in mycorrhizal pot-growth studies

机译:菌根贮藏研究中约束性实验设计因素的鉴定

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In the objective of testing the design of pot-growth experiments, we conducted two greenhouse studies of a “dwarf ” sunflower cultivar and an arbuscular mycorrhizal (AM) fungus to determine how pot size and inoculum distribution affect plant growth and AM symbiosis. As predicted, large-potted plants developed a greater overall biomass and root colonization than smallpotted ones which we attributed to the larger “rootable” volume. Furthermore, plants grown in a band of high density inoculum substrate showed a higher prevalence of fungal vesicles (sites of lipid storage) indicating amore advanced level of root colonization compared to those grown in a dispersed inoculum substrate; this likely being due to the higher frequency of interaction between roots and fungal propagules. In a second experiment, large-potted AM plants showed a greater tolerance to water deficit than non-AM control plants; however, this mycorrhizal effect was not detected among small-potted plants. We conclude that careful consideration should be made toward design parameters to limit result biases and ultimately facilitate comparison of findings between studies.
机译:为了测试盆栽试验设计的目的,我们对“矮”向日葵品种和丛枝菌根(AM)真菌进行了两次温室研究,以确定盆栽大小和接种量如何影响植物生长和AM共生。正如预测的那样,大盆栽植物的整体生物量和根部定植要比小盆栽植物更大,这归因于“可生根”量更大。此外,在高密度接种底物带中生长的植物显示出比在分散接种底物中生长的植物更高的真菌囊泡(脂质储存位点)的根定植水平。这可能是由于根与真菌繁殖体之间相互作用的频率更高。在第二个实验中,大盆栽AM植物比非AM对照植物对水分缺乏的耐受性更高。但是,在小盆栽植物中未发现这种菌根作用。我们得出结论,应该对设计参数进行仔细考虑,以限制结果偏差并最终促进研究之间的发现比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号