| Sumario: | The total content of chlorohydrogenic acid in green beans of the following coffee species was studied: Coffea salvatrix, C. canephora, C. liberica, C. dewevrei, C. racemosa, C. eugenioides, C. kapakata, C. stenophylla and C. congensis as well as selections of C. arabica carrying genes for resistance to coffee red disease.
Total chlorohydrex was determined by the Weiss method with modifications. The lowest value was found in C. salvatrix (2.70 percent) and the highest content was determined in C. canephora (10.30 percent). Within C. arabica, the content ranged from 6.63 to 8.20 percent, with the highest value found in the 'Cerd' genotypes and those carrying the SH, SH, and SH genes. The interspecific ploid tetva hybrid C. arabica x C. canephora showed intermediate strains compared with the parental species.
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