A procedure for maize genotypes discrimination to drought by chlorophyll fluorescence imaging rapid light curves.

ABSTRACT:

Background

Photosynthesis can be roughly separated into biochemical and photochemical processes. Both are affected by drought and can be assessed by non-invasive standard methods. Gas exchange, which mainly assesses the first process, has well-defined protocols. It is considered a standard method for evaluation of plant responses to drought. Under such stress, assessment of photochemical apparatus by chlorophyll fluorescence needs improvement to become faster and reproducible, especially in growing plants under field conditions. For this, we developed a protocol based on chlorophyll fluorescence imaging, using a rapid light curve approach.

Results

Almost all parameters obtained by rapid light curves have shown statistical differences between control and drought stressed maiz

SUBMITTER: de Sousa CAF 

PROVIDER: S-EPMC5530575 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature