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Banana

life science Maturity 9-11 Next article →

A banana is a tasty, elongated fruit that people enjoy all over the world.

Bananas
Bananas

Even though they look like trees, bananas actually grow on the largest herbaceous flowering plants. This means they are not true trees, but large herbs. The fruit is technically a berry. It has a soft flesh that is rich in starch. Most bananas have a protective peel that can be many different colors when ripe.

Bananavarieties
Bananavarieties

Watching a banana plant grow is a fascinating thing that happens. The plant does not have a wooden trunk. Instead, it has a pseudostem, which is a fake stem made of many leaf stalks. These stalks pack tightly together to support the plant. All the parts above the ground grow from a base called a corm. When the plant is ready, a flower spike emerges from the top. This is often called a "banana heart."

Inside a wild-type banana
Inside a wild-type banana

The fruit grows in large hanging clusters called bunches. A single bunch can weigh as much as 35 kilograms.

Humans have a very long history with these plants. The ancestors of modern bananas are native to tropical Australia and Indomalaya. Scientists believe people first began growing them in New Guinea.

Banana ancestors (Musa acuminata and Musa balbisiana) original range
Banana ancestors (Musa acuminata and Musa balbisiana) original range

These early farmers used transplantation to grow them. Over many years, the bananas spread from New Guinea into Southeast Asia. From there, they traveled along ancient sea paths to Africa and South Asia. This helped the banana become a food used by many different cultures.

Today, bananas are grown in 135 different countries. In 2022, India and China were the largest producers. Together, they made about 26% of all bananas in the world.

Banana production, World, 2023 (cropped)
Banana production, World, 2023 (cropped)

Most of the bananas we eat in the West are a type called Cavendish. This type is a hybrid, which is a mix of two wild species. These ancestors are named Musa acuminata and Musa balbisiana. Scientists must work hard to protect them from diseases like Panama disease. This disease is caused by a fungus called Fusarium.

You might know bananas in two different ways depending on where you live. In many places, people divide them into dessert bananas and plantains. Dessert bananas are sweet and eaten raw. Plantains are starchy and are often cooked in recipes like curries or fritters.

Farm Workers
Farm Workers

However, this rule is not the same everywhere. In Southeast Asia, many more kinds of bananas are grown. Some are used for food, while others are grown just to look pretty. Whether sweet or starchy, they are a huge part of life for many people.

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🖼️ Images & Media (21)
File:Bananavarieties.jpg
Bananavarieties.jpg
File:Nedravazhakola.jpg
Nedravazhakola.jpg
File:Banana_ancestors_(Musa_acuminata_and_Musa_balbisiana)_original_range.svg
Banana_ancestors_(Musa_acuminata_and_Musa_...
File:Inside a wild-type banana.jpg
Inside a wild-type banana.jpg
File:Chronological dispersal of Austronesian people across the Pacific (per Benton et al, 2012, adapted from Bellwood, 2011).png
Chronological dispersal of Austronesian...
File:Bananas Muslim world.JPG
Bananas Muslim world.JPG
File:Acta Eruditorum - III musa arabum pala plinii, 1734 – BEIC 13446956.jpg
Acta Eruditorum - III musa arabum pala...
File:Banana Plantation Panabo City.jpg
Banana Plantation Panabo City.jpg
File:Farm_Workers.jpg
Farm_Workers.jpg
File:Bananas.jpg
Bananas.jpg
File:Overripe banana 20211221 152406.jpg
Overripe banana 20211221 152406.jpg
File:Banana production, World, 2023 (cropped).svg
Banana production, World, 2023 (cropped).svg

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