Question

what is high yield variety

Answer 1

High-yielding varieties of agricultural crops are usually characterized by a combination of the following traits in contrast to the conventional varieties: higher crop yield per area dwarfness. improved response to fertilizers.

Answer 2

high yield variety are the special types of seeds that are developed scientifically to give more agricultural produce.

these high yield varieties are advantageous in todays world because the food need of the growing population  is met due to these varieties which give high yield.