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Evaluation of Single Cross Yellow Maize Hybrids (2011-12)

M. Amiruzzaman
Principal scientific Officer
Plant Breeding Division, BARI,Gazipur

M.N. Amin
scientific Office
Plant Breeding Division, BARI,Gazipur

Abstract/ Executive Summary:

Combined analysis was carried out for grain yield (t/ha), days to tasseling, days to silking, daya to maturity, plant height and ear height with 4 genotypes across five different locations namely Joydebpur, Rahmatpur, Hathazari, Burirhat and Ishurdi. Mean sum of square obtained from combined analysis of variance showed the presence of genetic variability among the genotypes and environments for all the characters under studies except days to maturity. Genotype × Environment interaction was found significant for days to silking, days to maturity and yield. From the overall mean yield and other desirable characters two entries were found promising across locations. Among the tested hybrids L-18 X BIL-28 produced the highest yield. Considering across locations grain yield two hybrids viz, L-18 X BIL-28 and L-26 X BIL-31 were found good and out yielded the best check hybrid BHM-9 (9.15t/ha). Burirhat location was produced highest grain yield followed by Rahmatpur and Ishurdi, while it was lowest at Joydebpur location.

Keywords: Evaluation, yellow maize, grain yield

Location: Gazipur, Rahmatpur, Hathazari, Burirhat, Ishurdi

Start Date: 24-11-2011

End Date: 09-04-2012

Program Area: Variety and Species

Commodity: Maize

Objectives:

The experiment was conducted to evaluate locally developed hybrids under different agro-ecological zones of Bangladesh and to select the best one(s).

Methodology:

The experiment was conducted at five locations viz. Joydebpur, Rahmatpur, Hathazari, Burirhat and Ishurdi during rabi 2011-2012. Three locally developed single cross maize hybrids and a local check BHM-9, were evaluated in this study. Seeds were sown between November 24-27, 2011 following RCBD with 3 replications. The unit plot size was maintained at 5.0 m × 1.5m. Spacing was 75cm × 20cm between row to row and hill to hill, respectively. After seedling emergence one healthy plant per hill was kept after proper thining. Fertilizers were applied @ 250, 55, 110, 40, 5 and 1.5 kg/ha of N, P, K, S, Zn, B, respectively. Standard agronomic practices were followed (Quayum, 1993) and plant protection measures were taken as required. Data on days to 50% tasseling and silking were recorded on whole plot basis. Ten randomly selected plants were used for recording observations on plant and ear height. All the plants in two rows were considered for plot yield. Combined analysis was done for grain yield, days to tasseling, days to silking, plant height, ear height and thousand kernels weight. All recorded data were processed and analysed using the MSTATC programme.

Source of Information: Annual Research Report 2011-12, Plant Breeding Division, BARI

Article Link (Online Journal):

Funding Source:

1.	Budget: Tk.80,000/-

Total Budget (Tk.) : Tk.80,000/-

Achievement/Findings:

From the study it was found that all of the tested hybrids were dwarf than check variety BHM-9. Most of the tested hybrids produced short ear height than check variety BHM-9. Burirhat location produced highest grain yield followed by Rahmatpur and Ishurdi, while it was lowest at Joydebpur location. Among the tested hybrids L-18 X BIL-28 produced the highest grain yield. Considering across locations grain yield, two hybrids viz, L-18 X BIL-28 and L-26 X BIL-31were found promising and out yielded the check variety BHM-9.

Knowledge Management: Report/Proceedings