Interactive Effects of CO₂ Concentration and Water Regime on Stable Isotope Signatures, Nitrogen Assimilation and Growth in Sweet Pepper.

ABSTRACT: Sweet pepper is among the most widely cultivated horticultural crops in the Mediterranean basin, being frequently grown hydroponically under cover in combination with CO₂ fertilization and water conditions ranging from optimal to suboptimal. The aim of this study is to develop a simple model, based on the analysis of plant stable isotopes in their natural abundance, gas exchange traits and N concentration, to assess sweet pepper growth. Plants were grown in a growth chamber for near 6 weeks. Two [CO₂] (400 and 800 μmol mol^-1), three water regimes (control and mild and moderate water stress) and four genotypes were assayed. For each combination of genotype, [CO₂] and water regime five plants were evaluated. Water stress applied caused significant

SUBMITTER: Serret MD 

PROVIDER: S-EPMC5758588 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature