Studies on the maize with multiple ears and tillers (MET), 1; effects of plant densities on the major characteristics of MET hybrid IK x IRI
1987
Seo, Y.W. | Choe, B.H. | Lee, H.B. (Chungnam National Univ., Taejon (Korea R.). Coll. of Agriculture) | Kim, B.H. (Heungnong Inc. Breeding Station, Jochiwon (Korea R.)) | Park, K.Y. (Rural Development Administration, Suwon (Korea R.). Crops Experiment Station)
Agronomic and morphological characteristics of a maize hybrid(IK x IRI) with multiple ears and tillers were evaluated under different planting densities. The genetic capacity of producing tillers and ears per plant was confirmed under different planting densities. The average number of tillers per plant in IK x IRI was 3.8 irrespective of plant densities, while the Suwon 19, check hyb1809rid, showed no tillers. In IK x IRI hybrid the average number of effective tillers per plant tended to increase as the plant densities decreased. The number of effective ears seemed to increased as the plant densities decreased from 70cm x 30cm to 70cm x 50cm. The leaf area index of the IK x IRI 90 days after sowing the density of 70cm x 30cm and 70cm x 50cm were 6.27 and 5.66, respectively, while those of Suwon 19 were 3.98 and 2.50. The fresh and dry weight of the IK x IRI measured at different growing stage were exceeding those of check hybrid in later part of gr
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