Abstract
We tested whether root exudation confers high P acquisition efficiency (PAE) in rice by quantifying 13C allocation and rhizosphere phosphatase activity for three contrasting genotypes. Phosphatase activity per root surface was similar for all genotypes, indicating that it is not conferring PAE in rice. DJ123 allocated more 13C from shoots to roots compared to Nerica4 and Chomrong Dhan in accordance to increased root biomass of this genotype. The allocation of 13C from roots to the soil was similar between genotypes indicating no difference of root exudation. However, DJ123 showed lower PAE compared to the other two genotypes. We conclude that in the tested genotypes, root systems size rather than root exudation confers PAE.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
