In which crops is the method of mass selection applied

Which one of the following methods of selection is mainly useful for cross pollinated crops ?

Which of the following crops was subjected most to continuous selection and domestication by man:

Which of the following crops was subjected most to continuous selection and domestication by man:

Correct the statements, if required by changing the underlined word Mass selection is the simplest method of plant self-pollinated crops.

Which is the oldest method of crop improvement ?

The methods of crop improvements are

Best method of improving crop yield is:

What is the role of selection in crop improvement.

What is the role of selection in crop improvement?