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Influence of Planting Date on the Growth and Yield of Double Top Cross Hybrid Maize Varieties During Winter

M. Biswas
SSO
RARS, Jamalpur

M. Asaduzzaman
SO
RARS, Jamalpur

Abstract/ Executive Summary:

An experiment was conducted at the Regional Agricultural Research Station Jamalpur during rabi 2007-2008 and 2008-2009 to find out favourable planting time for better growth and higher yield of double top cross hybrid maize. There were five planting dates viz. November 15, November 30, December 15, December 30 and January 15 and three varieties viz. BARI hybrid maize-6, double top cross hybrid maize-09 and -14 in the experiment. Design of the experiment was RCB (Factorial) having three replications. Averaged over years grain yields differed significantly among the planting dates and varieties/lines. Interaction between variety and planting date showed significant difference in respect of grain yield (pooled over two years). All varieties sown on November 30 gave the highest grain yields which were statistically at par with the combinations of November 15 sowing with BHM-6 & DTCHM-09, December 30 sowing with DTCHM-09 and DTCHM-14 and January 15 sowing with BHM-6 and DTCHM-09.

Keywords: Planting date, Growth, Yield, Hybrid maize varieties, Winter

Location: RARS, Jamalpur

Start Date: 00-11-2007

End Date: 00-05-2008

Program Area: Crop-Soil-Water Management

Commodity: Maize

Objectives:

To find out appropriate planting time for the BARI developed maize varieties and advanced lines developed through different cross combinations.

Methodology:

The experiment was conducted at the Regional Agricultural Research Station, Jamalpur Bangladesh during November 2007 to May 2008 to evaluate the influence of planting dates on the growth and yield of three-way and double top cross hybrid maize. The experimental treatment consists of five planting dates viz. 15 November, 30 November, 15 December, 30 December and 15 January and three hybrid maize varieties viz. BARI hybrid maize-6, Double Top Cross hybrid maize-09 and -14. Design of the experiment was RCB (factorial) with three replications. Direct planting of maize was done @ 20 kg ha^-1 in a spacing of 75 cm × 25 cm. The unit plot size was 4.5 m x 3 m. The plots were fertilized @ N250P55 K110 S55 Zn5 kg ha^-1 in the form of urea, TSP, MP, gypsum and Zinc sulphate, respectively. Two-third N and all other fertilizers were applied as basal and the remaining N was top dressed at 40 DAS after irrigation. Darsban was sprayed @ 2 ml L^-1 to control cutworm during seedling stage. Weeding was done as and when necessary. Irrigation was given at 20-25, 35-40, 70-75 and 90-95 DAS. Earthing-up was done after 2nd irrigation at 8-12 leaf stage. Destructive sampling was done for collection of data on growth parameters with a sample size of two plants at each sampling dates. Data on yield attributing characters were collected from 10 randomly selected plants while the yield data was calculated from the harvest area of 10.5 m². Collected data were analyzed statistically with the help of a computer package programme MSTAT and means separation was done as per LSD test at 5% level of significance.

Source of Information: Annual Report, Agronomy Division 2008-2009, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

The results obtained from the experiment indicated that the entry DTCHM-09 showed better performance both at optimum and late planting conditions. At present, most of the varieties yield poor under late planting conditions and hence, maize production can be increased through introduction of double top cross hybrid maize like Double Top Cross Hybrid Maize-09.

Knowledge Management: Report/Proceedings