Rice Genotypes Express Compensatory Root Growth With Altered Root Distributions in Response to Root Cutting.

ABSTRACT: Root systems play a pivotal role in water and nutrient uptake from soil. Lateral root (LR) growth is promoted to compensate for inhibited main root growth. Compensatory LR growth contributes to maintaining total root length (TRL) and hence water and nutrient uptake in compacted soils. However, it remains unclear how shoot and root phenotypic traits change during the compensatory growth and whether there are genotypic variations in compensatory root growth. This study analyzed shoot and root morphological traits of 20 rice genotypes, which includes mutants with altered root morphology, during the vegetative stage using a semihydroponic phenotyping system. The phenotyping experiment detected large variation in root and shoot traits among the 20 genotypes. Morphological changes induced by roo

SUBMITTER: Kawai T 

PROVIDER: S-EPMC8919052 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature