Variation in photosynthetic induction between rice accessions and its potential for improving productivity.

ABSTRACT: Photosynthetic induction describes the transient increase in leaf CO₂ uptake with an increase in light. During induction, efficiency is lower than at steady state. Under field conditions of fluctuating light, this lower efficiency during induction may cost > 20% of potential crop assimilation. Accelerating induction would boost photosynthetic and resource-use efficiencies. Variation between rice accessions and potential for accelerating induction was analysed by gas exchange. Induction during shade to sun transitions of 14 accessions representing five subpopulations from the 3000 Rice Genome Project Panel (3K RGP) was analysed. Differences of 109% occurred in the CO₂ fixed during the first 300 s of induction, 117% in the half-time to completion of induction, and 65% i

SUBMITTER: Acevedo-Siaca LG 

PROVIDER: S-EPMC7383871 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature