Wheat Seeds

Seeds are an item used in farming. They can be found by tilling grass tiles with a hoe to make farmland or by harvesting fully-grown wheat. The chance of finding seeds while tilling is fairly small compared to harvesting wheat, which yields from 0 to 3 seeds per tile harvested. Seeds can be placed in farmland by right-clicking, where they will grow.

Growth
When left alone, seeds planted in farmland will grow to become wheat which can be harvested. Planted seeds need at least 1 block of air above them to grow, and grow more quickly when planted near abundant water and sufficient light. The image below shows the stages of growth from newly planted seeds to wheat that is ready for harvesting. Allegedly, as of Beta 1.2_02, when harvesting fully matured wheat, there's a chance of it not dropping wheat.



Growing Conditions
Seeds must be grown in an area surrounded by some sort of barrier or your crops are at risk of being trampled. After stepping on tilled dirt with or without seeds, the dirt will revert back to normal after only a few steps (although this is randomly controlled because tests have shown it ranges anywhere from 1 steps to 10). Passive and hostile mobs can both affect these crops. If trampled, the seeds do not drop seeds and they are permanently destroyed.

Finding
Seeds can be found by tilling a dirt block. The dirt randomly yields seeds. The seeds then can be planted into the newly tilled dirt.