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Evaluation of Selected Single Cross Hybrids of Maize (set Ii)

Kamrun Nahar
Scientific Officer
Plant Breeding Division BARI, Gazipur

M. K. Sultan
Senior Scientific Officer
RARS Ishurdi

M. M. Haque
Scientific Officer
RARS, Jamalpur

Abstract/ Executive Summary:

Combined analysis was carried out for grain yield, days to tasseling, days to silking, days to maturity, plant height, ear height and 1000-kernel weight with 6 genotypes across three different locations. 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 studied. From the overall mean yield and other desirable characters two entries were found promising across locations and will be further evaluated in large plots.

Keywords: Maize, Hybrid, Evaluation, Single cross, Yield

Location: Gazipur, Jamalpur and Ishurdi

Start Date: 02-12-2007

End Date: 01-05-2008

Program Area: Variety and Species

Commodity: Maize

Objectives:

Evaluation of locally developed hybrids in different agro-ecological conditions and select the best one(s).

Methodology:

Four locally developed hybrids and two local checks, viz. BARI Hybrid Maize 3 (BHM3), and BARI Hybrid Maize 7 (BHM7) were evaluated in BARI, Gazipur; RARS, Jamalpur and RARS Ishurdi. Seeds were sown following RCBD with three replications. The unit plot size was 5.0 × 1.5 m. Spacing adopted was 75 × 20 cm between rows and hill, respectively. One healthy seedling per hill was kept after proper thinning. Fertilizers were applied @ 250,120,120, 40 and 5 kg/ha of N, P₂O₅, K₂O, S and Zn, respectively. All intercultural operations were done as and when necessary. Data on days to 50% tasselling, silking and maturity 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, days to maturity, plant height, ear height and 1000-kernel wt. using the MSTATC program.

Source of Information: Annual Research Report 2007-08, Plant Breeding Division, BARI

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Tk. 16,000/-

Total Budget (Tk.) : Tk. 16,000/-

Achievement/Findings:

Considering yield potentiality and other desirable characters two entries viz. Ishurdi-12 (10.95 t/ha) and P4 × P5 (10.28 t/ha) were found as promising hybrids, where Minimum days to tasseling (91), days to silking (93) and days to maturity (141) was observed in the hybrid P3 × P6

Knowledge Management: Report/Proceedings