There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
kinin, cytokinin
(noun) any of a class of plant hormones that promote cell division and delay the senescence of leaves
Source: WordNet® 3.1
cytokinin (plural cytokinins)
(hormone) Any of a class of plant hormones involved in cell growth and division
Source: Wiktionary
29 May 2024
(noun) an economic policy adopted in the former Soviet Union; intended to increase automation and labor efficiency but it led eventually to the end of central planning in the Russian economy
There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.