Seed plot technique in potato was developed by . . . . . . . .

The seed plot technique in potatoes was developed by Dr. Puskarnath in 1967.
"Seed Plot Technique" i.e. raising the healthy seed crop during the low aphid population period available in northern plains.
It is a technique of multiplication of disease-free (virus-free) seeds in the Northern plains of the country. The nucleus seed of the potato is produced from April to August when the aphid population is low in the hills.