Chlorophyll fluorescence transient as a genetic marker of productivity in barley

✍ Scribed by C. Planchon; A. Sarrafi; R. Ecochard

• Publisher: Springer
• Year: 1989
• Tongue: English
• Weight: 327 KB
• Volume: 42
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00034464

✦ Synopsis

The photosynthetic characteristics of the penultimate leaf in barley genotypes (reciprocal F1 combinations and varieties) were studied at the flowering stage in order to analyze the relationship between these traits and the biological yield and the economic yield . The biological yield was correlated with the leaf area whereas the economic yield was more dependent on the green area duration of the leaf or the combination of the two factors, leaf area and green area duration . The net photosynthesis per unit leaf area, determined at anthesis, was not a factor of productivity . On the other hand, the chlorophyll fluorescence (P), which was negatively correlated with the leaf area (+ 0 .5) and with the combination of leaf area and green area duration (+ 0 .5), was found to be a good marker of the economic yield . In view of its high heritability, it may provide an effective selection criterion .