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Influence of Sowing Date on Growth, Yield and Quality of Cotton

Kamrul Hassan
Cotton Agronomist
Cotton Research, Training and Seed Multiplication Farm, Jagadishpur, Jessore

Md. Rezaul Amin
Senior Scientific Officer
Cotton Research Centre, Mahigonj, Rangpur

Khalequzzaman
Scientific officer
Cotton Research, Training and Seed Multiplication Farm, Sreepur, Gazipur

Abstract/ Executive Summary:

Influence of sowing dates commencing from 20 June to 20 July with 15 days interval, on seed cotton yield of CB- 12 and Rupali- 1 were studied during 2011-2012 at three Cotton Research Farms under the district of Jessore, Gazipur and Dinajpur. The difference in the yield of seed cotton was found to be significant. The three locations average results revealed that the highest seed cotton yield of 2675 kg/ha was obtained on 5th July sowing the variety Rupali-1 followed by 2484 kg/ha sown on the same date using the variety CB-12. About 95% seed cotton was harvested within December for both the varieties sowing on 20th June and 5th July.

Keywords: Cotton, Hybrid, Sowing date, yield,

Location: Sreepur,Gazipur; Jagadishpur, Jessore and Sadarpur, Dinajpur

Start Date: 01-07-2011

End Date: 28-02-2012

Program Area: Crop-Soil-Water Management

Commodity: Cotton

Objectives:

To find out the optimum sowing date of cotton with the aim to harvest seed cotton within December.

Methodology:

Field experiment was conducted during 2011-12 to determine the influence of sowing dates viz. D₁ (20th June), D₂ (5th July), D₃ (20 th July), on the yield of two cotton cultivars viz. V1(CB-12) and V2 (Rupali-1) at three Cotton Research Farm of Cotton Development Board All the required cultural operations regarding irrigation, weeding and plant protection measures were adopted uniformly in all the plots throughout the growing periods in all locations. The data in respect of plant growth, seed cotton yield and ginning were collected and subjected to analysis of variance to discriminate the superiority of treatment means by Duncan’s new multiple range test. The seeds of all the varieties were drilled in four replicated complete block design with two factors in net plot size of 3.6 x 4.5 meters. The distance between rows and plant to plant was 90 x 45 cm. All chemical fertilizers were applied as per recommended dose. located at (i) Jagodishpur, Jessore, (ii) Sadarpur, Dinajpur and Sreepur, Gazipur. The crop was sown well in time according to the schedule.

Source of Information: Annual Research Report, Cotton Development Board, Ministry of Agriculture, Bangladesh. 2012

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The result revealed that no. of vegetative branches/plant, no. of secondary fruiting branches/plant, days to first flowering, were significantly varied at 1% level and no. of primary fruiting branches/plant, days to first boll split and seed cotton yield were also significantly varied at 5% level as the effect of variety at Jagadishpur farm. But plant population/ha, node no. of first fruiting branch/plant, plant height, no. of bolls/plant and single boll weight did not vary significantly. The highest seed cotton yield (2576 kg/ha) was obtained from the treatment V₂ and lowest was in V₁. Besides, days to first boll split, no. of bolls/plant seed cotton yield were highly significant responded for sowing date. Days to first flowering was significant at 5% level. Other growth and yield attributes were statistically similar. The treatment D₂ (15 days earlier sowing) produced the highest seed cotton (2743 kg/ha) which was statistically similar to the treatment D₃ and the lowest seed cotton was produced by the treatment D₁ (2174 kg/ha). The highest no. of bolls/plant (25.4) was also recorded in D2 and lowest (21.4) was in D₁. The interaction effect of variety and sowing date for the trait of vegetative branches/plant, days to first boll split, no. of bolls/plant and seed cotton yield were statistically different but similar results were found for the traits of plant population/ha, node no. of first fruiting branch/plant, primary fruiting branches/plant, secondary fruiting branches/plant, plant height and single boll weight. The treatment V₂xD₂ produced the highest seed cotton yield (2796 kg/ha) and the lowest seed cotton yield was in V₁xD₁.

Knowledge Management: Report/Proceedings