Hybrid maize, economic analysis, South Sulawesi
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Date
2013
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Publisher
Badan Penelitian dan Pengembangan Pertanian
Abstract
Maize productivity increasingin Indonesia must be effortto keep up high demand. Expansion maize
growing in acid soil will be a big potential, but acid soil degree in this areais the main constrain to produce maize.
Create hybrid lines as new candidate varieties which appropriate in the acid soils isthe ones choice. Yield productivity
of maize lines which tested is early maturity acid soil tolerance.Researchwas conducted in Tappalang
DistrictMamujuRegency West Sulawesifrom May-August 2010. The research arranged based on randomized block
design, treatments consist of 9 pure maize lines and 2 early maturity hybrid maize (AS-1 and Bima-3Bantimurung)
and 1 open pollinated maize (Sukmaraga) as the acid soil tolerance check. So there were 12 treatments and 3
replications. This research fertilized of 300 kg ureaha-1+200 kg phonskaha-1+100 kg KClha-1.The results showed that
there were 5hybrid maize lines produce grain yield more than 7ha-1and not significantly different to AS-1 (7.83ha-1),
Bima-3Bantimurung (7.30ha-1) as early maturity cultivar check, and Sukmaraga (7.42ha-1) as acid tolerant cultivar
check. The promising maize lines is GM1, GM2, GM3, GM8 and GM9 which grain yield potential is 8.05 t, 7.70 t, 7.99
t, 8.15 t and 7.90t/ha respectively.