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Effect of Seed Priming on Maize (zea Mays L.) Seedling Emergence Under Different Sowing Dates

M. M. Rahman
Professor
Department of Agronomy, Bangladesh Agricultural University (BAU), Mymansingh, Bangladesh

K. U. Ahammad
Senior Scientific Officer
RARS, Bangladesh Agricultural Research, Institute (BARI), Jessore, Bangladesh

M. Ahmed
Professor
Department of Agronomy, Bangladesh Agricultural University (BAU), Mymansingh, Bangladesh

Abstract/ Executive Summary:

The experiment was carried out at the research field of Regional Agricultural Research Station, Jessore during 2009-10 and 2010-2011 to find out the effect of priming and ambient temperatures due to different sowing dates on emergence of maize seedlings. The experiment consisted of two priming methods viz., i) Priming, ii) Non-priming, and ten sowing dates viz., i) 15 November, ii) 30 November, iii) 15 December iv) 30 December v) 14 January vi) 29 January vii) 13 February viii) 28 February, ix) 15 March, and x) 30 March. The experiment was laid out in a randomized complete block design with three replications. Results showed that germination percentage, germination index, mean germination time and dry matter/plant were influenced significantly by priming. The highest germination percentage, germination index, dry matter/plant and lowest mean germination time were recorded from primed seed sown in March followed by February and November sowings but those were very poor in December and January sowings. So, primed seeds should be sown in November and February for better stand establishment of maize.

Keywords: Seed priming, Maize (Zea mays L.), Sowing date, Seedling emergence.

Location: Regional Agricultural Research Station, Jessore, Bangladesh

Start Date: 00-00-2009

End Date: 00-00-2011

Program Area: Crop-Soil-Water Management

Commodity: Maize

Objectives:

To find out the effect of priming and ambient temperature due to different sowing dates on emergence of Maize seedling

Methodology:

The experiment was conducted in two consecutive years at the research field of Regional Agricultural Research Station, Jessore during 2009-10 and 2010-2011. The experimental site belongs to the High Ganges River Floodplain soil. The soil is characterized by sandy loam to silty clay loam with pH value of 7.0-8.0. Organic matter, total N, and K of the soil were 1.68%, 0.087%, and 0.20 meq/100g soil, and P, S, Zn, and B were 5.09, 20.20, 2.80, and 0.32 μg/g soil. The maximum and minimum average temperatures were 35 and 16 0C in the month of April and December, during 2009-10 and 2010-11. The total rainfalls were 1222.60 and 827.70 mm in 2009-10 and 2010-11. There was no rainfall in the month of November to January during 2009-10 to 2010-11. Monthly average relative humidity ranged from 88.62 to 95.87% in 2009-10 and 90.27 to 95.63% in 2010-11. The treatments of the experiment consisted of two priming methods viz., i) Hydropriming ii) Non priming, and ten sowing dates viz., i) 15 November, ii) 30 November, iii) 15 December, iv) 30 December, v) 14 January, vi) 29 January, vii) 13 February, viii) 28 February, ix) 15 March, and x) 30 March. The experiment was laid out in a randomized complete block design with three replications. Maize (var. BARI Hybrid Maize 5) seeds were taken in plastic bowls and submerged with distilled water for 18 hours. Then seeds were washed under tap water for several times and surface dried for two hours under shade. Seeds were sown in well prepared plots at 2 cm depth in soil maintaining 75 cm × 20 cm spacing. Fertilizers were applied at the rate of 230-48-90-43-3.5-1 kg/ha in the form of N-P-K-S-Zn, and B (BARI, 2006). One-third of Urea and all other fertilizers were applied as basal during final land preparation. One hand weeding was done at 20 days after sowing (DAS) for minimizing weed competition and one irrigation was applied after weeding. The experiment continued up to 30 days.Germination was calculated in percentage using the following formula:Germination = (Number of seeds germinated / Number of seeds sown) x × 100. Plant dry matter at 30 DAS (days after sowing) was recorded after drying plant samples in an oven at 70 oC for 72 hours. Data were subjected to statistical analysis using ANOVA technique through computer based statistical package programme MSTATC. Square root transformations of percentage data were done before the analysis (Gomez and Gomez, 1984). Mean comparison was done by Duncun’s Multiple Range Test (DMRT) at 5% level.

Source of Information: Bangladesh J. Agril. Res. 39(4): 693-707, December 2014, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Primed seeds sown in March showed highest emergence of maize whereas it was very poor when sown in December and January. Primed maize seeds sown in the month of November and February showed higher germination percentage, germination index, dry matter and lower mean germination time compared to primed seeds sown in December and January. So, it may be concluded that primed seeds could be sown in November and February for better production of maize in Bangladesh.

Knowledge Management: Journal