Node and internode are initiated from transition zone.
It carries the self-pruning gene, a defective dwarf gene and a mutated internode length gene.
This is formed by the swollen lowest rachilla internode and adnate lower glume.
Pedicels of spikelet pair equal, as long as rachis internode; upper glume with 0. 5-1 mm mucro.
At tillering stage, spraying GA solution to the dwarf mutant could promote the elongation of the first and the second internode, but no significant effect on the length of the third internode.
Moreover, it mainly resulted in shortened internode under the rachis internode, with forming good plant shape, and increasing the number of ear bearing tiller, but decreasing the per ear grain number.
The characteristics of vascular bundle in the first internode and grain filling of heavy panicle hybrid rice (HPHR) were studied.
Results showed that the elongation of mesocotyl and internode of coleoptile played important roles in the seedling emergence of the weedy rice from northern China.
The yield had positive direct influence to plant height, stem bottom diameter and distance of internode, and the opposite influence was from width of leaf.
Comparison of regional permeability and translocation across the node and the internode in the etiolated mesocotyl excised from corn Zea mays l.
When plant spacing and row spacing were too small or seedling Numbers per hole was too much, 2nd internode lodging index for two rice varieties increased and resistance ability decreased.
