Morphology of Corn

Morphology of Corn

1 . root

 

Corn has root fibers with three kinds of roots , namely the seminal root , adventitious roots , and the roots latch or buffer . Seminal roots are roots that develop from the radicle and embryo . Seminal root growth will slow after plumula emerges from the ground and seminal root growth will stop at the V3 phase . Adventitious roots are roots that originally evolved from the book at the end mesokotil , then sets adventitious roots growing from each book in sequence and continues up between 7-10 books , everything below the ground surface . Adventitious roots growing into thick fibrous roots . Seminal roots just a bit role in the life cycle of corn . Adventitious roots play a role in nutrient and water uptake . The total weight of the roots of corn consists of 52 % seminal adventitious roots and 48 % of nodal roots . Root latch or buffer is adventitious roots that appear in two or three books on the surface of the ground . The function of the root of the buffer is to keep the plant in order to remain upright rods and tackle fall . This root also helps the absorption of nutrients and water


2 . cornstalk

Corn plants have stems unbranched , cylindrical , and consists of a number of segments and book sections . In the book there is a section which shoots develop into cob . The top two buds develop into productive cob . Trunk has three main network components , namely the skin ( epidermis ) , a network of vessels ( vascular bundles ) , and the central stem ( pith ) . Vascular bundles are arranged in concentric circles with bundles of high density , and perikarp circles close to the epidermis . Bundles density decreases so approaching the center of the rod . High concentration of vascular bundles beneath the epidermis causing bacillus fall . Maize genotypes that have strong stems have more layers of thick -walled sklerenkim tissue below the epidermis and peripheral stem vascular bundles ( Paliwal 2000) . There are variations in skin thickness antargenotipe that can be used for the selection of plant tolerance to stem fall .

Corn stalks upright and easily visible , as sorghum and sugarcane , but not like rice or wheat . There mutant stem is not growing rapidly so the rosette -shaped plants . Jointed rod . Wrapped in leaf midrib segments emerging from the book . Corn stalks sturdy enough but does not contain much lignin .


3. leaf

Corn leaf is perfect leaf. Elongated shape. Between midrib and leaf blade are ligula. Bone leaf veins parallel to the mother. Leaves no slippery surface and there is hair. Stomata on leaves of corn dumbbell-shaped, which is typical familia owned Poaceae. Each stomata epidermal cells surrounded by fan-shaped.


4. cornflower

Corn has a flower jantandan separate female flowers (diklin) in one plant (monoecious). Each flower has the typical structure of the tribe Poaceae flowers, called florets. In maize, two florets bounded by a pair glumae (singular: gluma). Male flowers grow at the top of the plant, a bouquet of flowers (inflorescence). Pollen distinctive yellow and flavorful. Female flowers are arranged in a cob.


5. corncob

Cob grows from the book, in between the stem and the leaf midrib. In general, a single plant can produce only one cob productive despite having a number of female flowers. Corn is ready to harvest some fruit yielding varieties can produce more than one cob productive, and is referred to as a prolific varieties. Male flowers are ready for pollination of corn tends 2-5 days earlier than female flowers (protandri).
plant corn cobs have one or two, depending on variety. Corn cobs covered by leaves cornhusk. Corn cobs are located on the top of the first established and generally larger than those at the bottom. Each cob consists of 10-16 seed line whose number is always even.