Filament attached along the whole length of anther is the condition called _____.

The attachement of filament to the anthers determines the classification of stamens. When the filament is attached along the entire/whole length of the anther, it is called adnate. It is seen in Nicotiana, Magnolia.

B. In dorsifixed condition, filaments are attached to the dorsal side of the anthers.

C. In basifixed condition, filaments are attached to the base of the anthers.

D. In versatile condition, filaments are attached to a point on the connective so that anthers can swing freely.

Hence, the correct answer is 'Adnate'.