Which one of the following pairs is not correctly

Agronomic efficiency is expressed as

The disease of apple trees can be controlled using Carbendazim during the "Petal fall" stage is 

Choose the incorrect option

______________ formulated water grid

The fungus coletotrichum falcatum causes which disease in sugarcane?

India has a monopoly in the production of which type of silk? 

Which propagation method is correctly matched with the fruit crop in horticulture?

How many pollen grains are developed from a pollen mother cell?

Bitterness of beer is due to

Quincunx system accommodates how much more plants than  square system of planting?