Which one of the following chemical is most effective in

C4 plants have some advanced anatomical characters,Which crop has C ₄ photosynthesis pathway ?

Banana is propagated through: 

In nutrient uptake studies, which element is primarily associated with the regulation of stomatal movement and enzyme activation?

Plants with very short life spans and complete several life cycles in a season is called 

Which among the following is a major constraint in the rice–wheat system of Indo-Gangetic plains affecting long-term sustainability?

Industrial relations consists of the relations between .....................?

Which of the following is NOT correctly matched?

What will be the colour reaction with iodine of a plant kept in dark for few days?

Central Potato Research Institute is situated in_____

Which of the following field crops is most susceptible to lodging due to its tall stature and heavy panicle weight under high fertility and irrigation?