Rice grain

• Rice gain is the ripened ovary with lemma and palea firmly adhered to it.
• The lemma and palea with other smaller components form the null and are removed in shelling rice for consumption.
• The rice fruit is a caryopsis in which single seed is fused with the wall of the ovary (Pericarp).
• The seed consists of endosperm and an embryo.
• The embryo is very small and is found on the ventral side of the caryopsis. It contains plumule (embryonic leaves) and  radicle (root).On submergence in water or on sowing the radicle grows as roots and plumule grows as shoot.