Effects of root phenotypic changes on the deep rooting of Populus euphratica seedlings under drought stresses.

ABSTRACT:

Background

Deep roots are critical for the survival of Populus euphratica seedlings on the floodplains of arid regions where they easily suffer drought stress. Drought typically suppresses root growth, but P. euphratica seedlings can adjust phenotypically in terms of root-shoot allocation and root architecture and morphology, thus promoting deep rooting. However, the root phenotypic changes undertaken by P. euphratica seedlings as a deep rooting strategy under drought conditions remain unknown.

Methods

We quantified deep rooting capacity by the relative root depth (RRD), which represents the ratio of taproot length to plant biomass and is controlled by root mass fraction (RMF), taproot mass fraction (TRMF), and specific taproot length (STRL). We recorded

SUBMITTER: Ye ZQ 

PROVIDER: S-EPMC6397757 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature