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Effect of Genotype-environment Interaction of Grain Yield and Plant Height of Maize (zea Mays L.)

M. S. Uddin
Plant Breeding Division, BARI, Gazipur-1701

K. Nahar
Plant Breeding Division, BARI, Gazipur-1701

M. M. Haque
Plant Breeding Division, BARI, Gazipur-1701

B. R. Banik
Plant Breeding Division, BARI, Gazipur-1701

Abstract/ Executive Summary:

Combined analysis and genotype environment interaction was carried out for plant height and grain yield with 16 maize hybrids across four different locations. Significant variation for genotypes, environment and G x E interaction were found for the both the characters. Significant liner component of genotype x environment interaction on grain and plant higher was also observed. The hybrids Barnali x IPB 911-18, IPB 911-22 x Barnali and IPB 911-36 x Barnali appeared to be more or less stable for plant higher. The environment of Gazipur and Ishurdi were rich or favorable and Hathazari and Jamalpur were the poor or unfavorable environments for grain yield. Three hybrids viz., Barnali x IPB 911-18, BM 7 x IPB 911-16 and IPB 911-2 x E-32 were stable for grain yield and found promising across locations and suggested to be released for future cultivation.

Keywords: Maize, Grain yield, Maize plant height, Environment.

Location: Gazipur, Ishurdi,Hathazari and Jamalpur

Start Date: 01-07-2006

End Date: 30-06-2007

Program Area: Variety and Species

Commodity: Maize

Objectives:

to evaluate locally developed hybrids at different locations of Bangladesh and
to select the best one for general cultivation.

Methodology:

The experiment was conducted at four locations viz. Gazipur, Ishurdi,Hathazari and Jamalpur during rabi 2006-07. Thirteen locally hybrids and three local checks viz, BARI Hybrid Maize 2 (BHM 2), BARI Hybrid Maize 3 (BHM 3), BARI Hybrid Maize 5 (BHM 5) were evaluated in this trail. Seeds were sown on 20-24^th November at Gazipur, Ishurdi,Hathazari and Jamalpur following Alpha lattice design with 3 replications. The unit plot size was 5.0 x 1.5 m. spacing adopted was 75 x 20 cm between row and hill. One healthy seedling per hill was kept after proper thinning. Fertilizers were applied @ 250, 120, 120, 40 & 5 kg/ha of N, P2O5, K2O, S & Zn respectively. All intercultural operations were done as per recommendation of BARI. Ten randomly selected plants were used for recording observations on plant height. The stability parameters, regression coefficient and deviation from regression were estimated. Significant different among value and unity was tested by t-test, between S²d_i & zero by F-test.

Source of Information: Bangladesh Journal of Agricultural, vol 35 (2), 2010,(page no:61-66),ISSN 0253-5408, BARC

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The hybrids Barnali x IPB 911-18, IPB 911-22 x Barnali and IPB 911-36 x Barnali appeared to be more or less stable for plant higher. The environment of Gazipur and Ishurdi were rich or favorable and Hathazari and Jamalpur were the poor or unfavorable environments for grain yield. Three hybrids viz., Barnali x IPB 911-18, BM 7 x IPB 911-16 and IPB 911-2 x E-32 were stable for grain yield and found promising across locations and suggested to be released for future cultivation.

Knowledge Management: Journal