The round bottle gourd, locally known as lauki, is one of the most commonly used vegetables for daily meals, especially in South Asian cuisines.

People cook it in different ways — making curries, frying it with spices, pairing it with lentils [daal], or adding chutneys and side sauces. The same vegetable also works beautifully in sweets, with popular desserts like kheer and halwa being made from it. However, it’s best to use young round bottle gourds with soft seeds for desserts, rather than mature ones that have harder seeds.

But behind every lauki curry is a plant that takes real care to grow — starting with pollination.

Successful pollination — whether carried out naturally by pollinators or manually through hand pollination — requires the transfer of pollen from the male flower to the centre of the female flower. Even before pollination occurs, female flowers have a small, fruit-like swelling called the ovary just beneath the petals. This ovary also makes it easy to tell male and female flowers apart.

The round bottle gourd is a South Asian........

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