PKM1, a variety of Moringa oleifera, has created a global impact, especially in countries such as Senegal, Rwanda and Madagascar in the African continent.
Leaves and flowers of this tree provide macronutrients and micronutrients that are believed to combat malnutrition among children in these countries.
Before the arrival of PKM1, there were about six native varieties of moringa (Murungai).
All these varieties were perennial crops, with trees surviving up to 30 years.
In the late 1980s, the PKM1 variety was introduced by the Horticulture College and Research Institute at Periyakulam in Dindigul district.
Unlike the native breed, PKM1 grows only to a height of six feet, thus it is easier for plucking.
Tamil Nadu accounts for 24% of world moringa production and the largest producer in India.
Districts like Theni, Dindigul, and Karur are well-known for moringa cultivation.
The major moringa-growing districts namely Madurai, Theni, Dindigul, Thoothukudi, Ariyalur, Tiruppur would be declared as 'Moringa Export Zone'.