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The robusta plant has a greater crop yield than that of arabica, contains more caffeine (2.7% compared to arabica's 1.5%), [7] and contains less sugar (3–7% compared to arabica's 6–9%). [8] As it is less susceptible to pests and disease, [ 9 ] robusta needs much less herbicide and pesticide than arabica.
List and origin of arabica varieties TIF. Coffee varieties are the diverse subspecies derived through selective breeding or natural selection of coffee plants.While there is tremendous variability encountered in both wild and cultivated coffee plants, there are a few varieties and cultivars that are commercially important due to various unique and inherent traits such as disease resistance and ...
Due to its rarity and limited supply on a global level, the cost of regular liberica beans is on the higher end, with premium liberica beans carrying a heavier price tag. The caffeine concentration of liberica beans is the lowest of the three cultivars, with 1.23 g/100 g, where arabica has 1.61 g/100 g and Robusta has 2.26 g/100 g. [11]
Liberica beans from Mindoro, Philippines. The shape of the liberica beans is unique among other commercial species (arabica, robusta, and excelsa). It is asymmetric, with one side shorter than the other side, creating characteristic "hook" at the tip. The central furrow is also more jagged in comparison to other coffee beans. [5]
The two most popular are Coffea arabica (commonly known simply as "Arabica"), which accounts for 60–80% of the world's coffee production, and Coffea canephora (known as "Robusta"), which accounts for about 20–40%. [2] [3] C. arabica is preferred for its sweeter taste, while C. canephora has a higher caffeine content.
Ideally, Arabica coffee beans are grown at temperatures between 15 and 24 °C (59 and 75 °F) and Robusta between 24 and 30 °C (75 and 86 °F) and receive between 500 and 3,000 mm (20 and 118 in) of rainfall per year. [18] More rain is needed at the beginning of the season when the fruit is developing and less later in the season as it ripens.
Arabica berries ripen in six to eight months, while robusta takes nine to eleven months. [47] Coffea arabica is predominantly self-pollinating, and as a result, the seedlings are generally uniform and vary little from their parents. In contrast, Coffea canephora, and C. liberica are self-incompatible and require outcrossing.
However, as result of serious infestation caused to this species by coffee rust, an alternative robust species of coffee, appropriately named as robusta and another hybrid between liberica and Arabica, a rust-tolerant hybrid variety of Arabica tree became popular. This is the most common variety of coffee that is grown in the country with ...