Contrasting response of biomass and grain yield to severe drought in Cappelle Desprez and Plainsman V wheat cultivars.

ABSTRACT: We report a case study of natural variations and correlations of some photosynthetic parameters, green biomass and grain yield in Cappelle Desprez and Plainsman V winter wheat (Triticum aestivum L.) cultivars, which are classified as being drought sensitive and tolerant, respectively. We monitored biomass accumulation from secondary leaves in the vegetative phase and grain yield from flag leaves in the grain filling period. Interestingly, we observed higher biomass production, but lower grain yield stability in the sensitive Cappelle cultivar, as compared to the tolerant Plainsman cv. Higher biomass production in the sensitive variety was correlated with enhanced water-use efficiency. Increased cyclic electron flow around PSI was also observed in the Cappelle cv. under drought stress as sh

SUBMITTER: Paul K 

PROVIDER: S-EPMC4815492 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature