Occurrence of tiller and and its effects on grain yield of barley under different plant densities
1987
Shin, M.G. (Rural Development Administration, Iri (Korea R.). Honam Crops Experiment Station) | Maeng, D.J. (Chungang Univ., Ansung (Korea R.). Industry Coll.) | Ha, Y.W. (Rural Development Administration, Suwon (Korea R.). Wheat and Barley Research Inst.)
This experiment was carried out to investigate the occurrence of tiller and its proportion to grain yield under 5 different plant densities. Plant density 5 x 5cm was more favorable for increasing the number of spikes per unit area, where led to improve grain yield. Effective tillers showed only main stem, M1-axil and M2-axil, indication more effective tillers in M1 rather than main stem. Every tillers held at least 6 leaves to bear spikes, indicating that main stem has 12-13 leaves. Leaves attached on main stem M0 and M1 were very important as main source of photosynthesis, especia1243lly under more compact plant densities while leaves of M1 occupied 66.8% in a plant. The proportion of grain yield of each tiller to total grain yield per plant was high in main stem under compact plant density, in M1 stems under less compact plant density, and in M2-stems under wide plant density, indicating the same result on multiple regression anal
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