It begins soon after heading. The anthers of the terminal spikelet are first to come out, others follows. Anthesis occurs 25 days after PI, irrespective of the variety. At this stage the panicle is erect in shape.Pollination / fertilization: Rice is highly self pollinated. The florets open from morning to afternoon depending upon variety and weather. The stamens elongate and anthers move out of the glumes as the pollen is shed. The pollens' are received by the pistil and move to the ovary via pollen tubes.

This is the stage when the panicle comes out .Generally 3 weeks after panicle initiation stage.

 

In short and medium duration varieties  it coincides with the maximum tilloering phase. This stage begins when the primordial of the panicle has differentiated and becomes visible; about 50-55 DAS. It occurs first in the main stem and then in the primary and secondary tillers. Availability of sufficient water in field as essential. Unavailability of sufficient water, as can happen in direct seeded rice, delays panicle emergence.

In short and medium duration varieties  it coincides with the maximum tilloering phase. This stage begins when the primordial of the panicle has differentiated and becomes visible; about 50-55 DAS. It occurs first in the main stem and then in the primary and secondary tillers. Availability of sufficient water in field as essential. Unavailability of sufficient water, as can happen in direct seeded rice, delays panicle emergence.

 

Reproductive growth is a one-time process, in other words, determinate. Flower and seed development is a process that is taking place at a growing point at the tip of stem, often called shoot apical meristem (SAM).A growing point goes through reproductive growth only once. On a rice plant, the growing point develop a panicle in the reprocduoion