Stabilitas Hasil Jagung Pulut Varietas Bersari Bebas pada Dataran Rendah Tropis

M. Yasin HG, Suarni Suarni, Sigit Budi Santoso, Faesal Faesal, A. Haris Talanca, Made Jana Mejaya


Waxy corn is consumed as a fresh cob like sweet corn. The kernel is glutinous and has good taste due to the low content of amylose, less than 10.0%. The
yield of waxy corn is commonly low, between 2.0-3.0 t/ha, but it is early maturing, harvested at 85 days after seeding (DAS). The cob yield had been
purposedly improved through the intra population of S1 families selection. Nine genotypes were chosen to be evaluated to select the best population, adaptive
under low elevation land condition in the corn production areas. The aims of this research were to identify waxy corn population having good yield stability
and above average yield over all locations. Randomized complete block design with four replications was used for the experiment conducted in five districts
in the main corn production areas, namely Maros, Polman, Manado, Probolinggo, Pakanbaru during the dry and wet seasons of 2011. The plant spacing was 75 cm x
20 cm, one plant per hill. Each genotype was planted 5.0 m long of four rows, and fertilized with Urea, SP36 and KCl (300-200-100) kg/ha. There was
significant effect of interaction between genotypes x environments x seasons (g x e x s) and the yield increased in accordance with the better quality of the
environmets (b>1.0). Population PMS-D (Pulut Muneng Synthetics), with the dent grain type, produced 5.56 t/ha and 5.82 t/ha, each under wet and dry season,
or 17.0% more than that of local check variety (PH). Simple correlation analysis between yield of PMS-D, and the yield components, were found significant for
grain yield with ears weight, number of grains per ear, and 1000 grain weight. There were no significant correlation between yield with amylose,
carbohydrate, protein and fat content. The plant habitus was scored one on plant aspect, husk cover, and ear aspect. The position of ear was on the middle of
plant height, flowering in 45 days. The best population PMS-D was promising as a candidate for new improved open pollinated variety, that could replace the
low yield of local waxy variety.


Waxy corn; yield stability; amylosa; amylopectine

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P-ISSN: 2541-5166
E-ISSN: 2541-5174
Terakreditasi No.646/AU3/P2MI-LIPI/2015 oleh Lembaga Ilmu Pengetahuan Indonesia

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