I would say "no" but I'm not a grass expert. Also I'm not sure if by "most" you mean most species of grass, most individual grass plants, greater than 51% or what. But I do know that there are a whole lot of grasses that don't have a main tap root.
No. Most grasses have fibrous roots.
No, most of them have a fibrous root system.
If you mean tap root, carrots and dandelions have tap root systems.
Tap root and fibrous root are two systems. Tap root system is prevalent in dicots and fibrous root system in monocots.
The two main types of root systems are fibrous roots and taproots. Fibrous roots form a dense network close to the surface of the soil, while taproots have a main central root that grows deep into the ground with smaller lateral roots branching off.
Tap root and Adventitious roots
Shoe flower plants have fibrous root systems, which consist of many thin roots that spread out in various directions to help anchor the plant in the soil and absorb water and nutrients efficiently.
A tap root system is identified by a single main root that grows vertically downward, with smaller lateral roots branching off from it. It has a carrot-like appearance with a dominant central root. Plants with tap root systems typically have deep root penetration into the ground.
Tap root
it grows in tap root but some try it is fibres root i recommed that you use tap root thought
Most monocotyledon plants such as grass and onions have fibrous foot systems. The actual root structure differs from the dicots. Monocots tend to have parallel vein systems in their stems. [A rare few monocots such as Cordyline australis also develop a substantial tap root. A NZ Cordyline of 1m tall, will have a tap root of 250 - 300 mm long and 30 - 40 mm dia. Used as a food source by the Maori. Again, this plant increases its trunk diameter, unlike most of the family.]
Most monocotyledon plants such as grass and onions have fibrous foot systems. The actual root structure differs from the dicots. Monocots tend to have parallel vein systems in their stems. [A rare few monocots such as Cordyline australis also develop a substantial tap root. A NZ Cordyline of 1m tall, will have a tap root of 250 - 300 mm long and 30 - 40 mm dia. Used as a food source by the Maori. Again, this plant increases its trunk diameter, unlike most of the family.]