About Lesson
Morphology
- Root system :
A) Temporary root system :
- It contains primary root and seminal root
- It originate in the form of embryo in the form of radicle followed by seminal root.
- Dies after crown root development.
B) Permanent root system :
- Contains secondary root and crown root.
- It originates from basal node of stem at around 21-25 DAS.
- New tillers develops aditional crown roots.
- Shoot system
- Stem / culm : 6 ndes and internodes , uppermost node is called peduncle which terminate with spike.
- Leaves are short an have hairy auricle as compared to barley.
- Spikelet : The main axix on which spikelet are arranged is called rachis. Spikelet contains glumes and 2-5 florets. Flora contains lemma , palea and stamens , single pestil , lodicules .
- Grain : caryopsis , pericarp is fused to seed coat.
