Genetic parameters of several biochemical compounds from green coffee, Coffea canephora

• Published in: Plant breeding Vol. 117; no. 6; pp. 576 - 578
• Main Authors: Montagnon, C, Guyot, B, Cilas, C, Leroy, T
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-12-1998; Blackwell
• Subjects: additive effect; Agronomy. Soil science and plant productions; biochemical compounds; Biological and medical sciences; caffeine; chemical constituents of plants; chlorogenic acid; Coffea canephora; crop; crop outturn; crop yield; fat; fruits; Fundamental and applied biological sciences. Psychology; genetic correlation; genetic effects; Genetics and breeding of economic plants; genotype-environment interaction; heritability; lipids; phenotypic correlation; ratios; seed weight; seeds; sucrose; trigonelline; Varietal selection. Specialized plant breeding, plant breeding aims; yield components; Yield, quality, earliness, varia; Agronomic character; Coffea canephora; Production quality; Sucrose; Stimulant plant; Chlorogenic acid; Fatty acids; Genetic determinism; Genotype environment interaction; Dicotyledones; Angiospermae; Rubiaceae; Genetic improvement; Spermatophyta; Chemical composition; Trigonellin; Yield component; Caffeine
• ISSN: 0179-9541; 1439-0523
• DOI: 10.1111/j.1439-0523.1998.tb02211.x

A factorial crossing scheme of Cofflea canephora (two parents from the Congolese group crossed to 14 parents of the Guinean group) was used to evaluate genetic parameters of several biochemical compounds, bean weight and crop outturn (ration of dry bean weight 10 fresh berry weight). For most characters studied, additive genetic effects were preponderant. Narrow‐sense heritability was high for caffeine content (h2ns= 0.80), fat matter content (h2ns, = 0.74), bean weight (h2ns= 0.73) and crop outturn (h2ns= 1). It was intermediate for trigonelline (h2ns= 0.38) and chlorogenic acid (h2ns= 0.36) content. Only sucrose content had a low narrow‐sense heritability (h2ns=0.11). There were few genetic and enviromnental correlations, Consequences for breeding, in relation to coffee drinking quality, are discussed.