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Comparative Yield Trial of Imported and Local Hybrids Maize Under Rainfed Condition

M.Z.A. Talukder
Scientific Officer
Plant Breeding Division, BAR, Gazipur

M.A.A.Khan
Scientific Officer
RARS, Ishurdi

M.A. Salam
Senior Scientific Officer
ARS, Rajshahi

Md. A.A. Mondal
Chief Scientific Officer
Cheif Scientific Officer, Burirhat, Rangpur

Abstract/ Executive Summary:

Bangladesh under rainfed condition during 2013-14. The AMMI model (additive main effects and multiplicative interaction) was used to analyze the genotype-environment interactions over three locations to select the hybrid having higher yield and other potential attributes. Significant variation for genotypes (G), environment (E) and GEI were observed for the character yield. The environment of Rajshahi and Debigong were poor; but Ishurdi was rich for hybrid maize production in rainfed condition. Ishurdi of Pabna was found highly suitable for hybrid maize cultivation followed by Rajshahi and Debigong. Considering the mean, bi and S²di all the hybrids showed different response of adaptability under different environmental conditions. Among the tested hybrids under rainfed condition varieties 981, NK 40 and NK 41exhibited higher yielding as well as stable over all environments. 8534, 942, Sunshine and Prince were highly stable with moderate yield.

Keywords: Maize , Rinfed, Ammi model.

Location: Ishurdi, Rajshahi and Debigong

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Variety and Species

Commodity: Maize

Objectives:

To evaluate yield potentiality as well as the stability of the imported local maize hybrids under rainfed condition.

Methodology:

The experiment was conducted at three locations viz; Ishurdi, Rajshahi and Debigong during rabi 2013-14. The materials consisted of 21 hybrids imported by different seed companies, 7 from Monsanto Seed Company (9120, Titan, 8534, 8536, 942,981 and 900M Gold) and 3 BARI developed hybrids (BHM 5, BHM 7 and BHM 9) were evaluated in this trial. The experiment was laid out in RCBD with 3 replications. Seeds of each entry were sown in 2 rows, 5m long plot at 75 and 20 cm spacing. Seeds were sown on 9 December, 15 December and 22 December 2013 at Ishurdi, Rajshahi and Debigong, respectively. One healthy seedling per hill was kept after thinning. Only one irrigation was applied after sowing. Fertilizers were applied @ 250, 55, 110, 40, 5 and 1.5 kg/ha of N, P, K, S, Zn and B, respectively. Standard agronomic practices were followed and plant protection measures were taken as required. All data were processed and analyzed using Cropstat 6.1 program.

Source of Information: Annual Research Report 2013-14, Plant Breeding Division, BARI, page: 121-126

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Fifty thousand taka

Total Budget (Tk.) : Fifty thousand taka

Achievement/Findings:

Among the hybrids, 981 showed the highest yield and it was a stable variety over all environments. Varieties NK 40 and NK 41 exhibited higher yielding as well as stable over all environments. 8534, 942, Sunshine and Prince were highly stable with moderate yield potentiality.The AMMI biplot provide a visual expression of the relationship between the first interaction principal component axis (AMMI component 1) and mean of genotypes and environment with the biplot according for up to 98.3 % of the treatment sum of squares. The hybrids BHM9, 25K60 and Heera 101 were unstable due to their dispersed position. 981, 8536 and 786 were appeared to be more stable when plotting the IPCA1 and IPCA2 scores.

Knowledge Management: Report/Proceedings