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Influence of Sowing Date on Quality Seed Production of Bitter Gourd

M.S. Rahman
Principal Scientific Officer
Seed Technology Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

M.N. Islam
Scientific Officer
Seed Technology Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

P.C. Sarker
Senior Scientific Officer
Seed Technology Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

A. Nessa
Chief Scientific Officer
Seed Technology Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

M.R. Shaheb
Scientific Senior Officer
On-Farm Research Division, BARI, Sylhet, Bangladesh

M.H. Sarker
Scientific Officer
Farm Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

Abstract/ Executive Summary:

Sowing of seed at optimum time is important for quality seed production. Hence, a study was conducted at the field research farm of Seed Technology Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during September 2009 to May 2011 to select the optimum sowing date for quality seed production of bitter gourd and to find out a relationship between seed quality parameters and prevailing weather condition. Six different sowing dates viz., 1 October, 1 November, 1 December, 1 January, 1 February and 1 March were used in this study. Results revealed that there was significant difference on fruits plant-1, seeds fruit-1, 100 seed weight and seed yield ha-1. Seed yield of bitter gourd increased gradually from 1 November sowing to 1 February sowing. This might be due to prevailing higher temperature at flowering stage. The highest seed yield (176.42 kg ha^-1) was obtained from 1 February sowing. This treatment also showed better seed quality in respect to seed germination (93.33%) and vigor index (10.66).

Keywords: Sowing date, Bitter gourd, Seed yield, Seed germination, Vigour index

Location: Field laboratory of Seed Technology Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

Start Date: 00-09-2009

End Date: 00-05-2011

Program Area: Crop-Soil-Water Management

Commodity: Bitter gourd

Objectives:

To select the optimum sowing date for quality seed production of bitter gourd
To find out a relationship between seed quality parameters and prevailing weather condition

Methodology:

The experiment was conducted at the field laboratory of Seed Technology Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh during September 2009 to May 2011. The experiment was carried out in randomized complete block design with 4 replications. The treatments were six (6) sowing dates viz., 1 October, 1 November, 1 December, 01 January, 1 February and 1 March. Each bed was 4.0 m long having 2.0 m width. Plant to plant spacing was maintained 1.0 m × 1.0 m comprising 8 plants per bed. One plant was maintained in each pit. Bamboo made trellis with net rope was provided for creeping of the plants. NPKSBZn @ 70-30-50-20-1-5 kg ha^-1 was applied along with cowdung @ 10 t ha^-1. The full amount of cowdung, P, K, S, and 1/3 of N were applied during final pit preparation. The remaining amount of N was top dressed in two equal splits at 25-30 and 45-60 days after planting. The variety of bitter gourd was BARI Karola-1. Weeding, irrigation and plant protection measures were done as and when necessary. Data on fruits plant^-1, seeds fruit^-1, 100 seeds weight and seed yield ha^-1 etc. were recorded and analyzed statistically with the help of MSTAT-C. Treatment means were compared following Least Significant Difference. Seed germination and vigor index were calculated on the basis of the fomulae.

Source of Information: Int. J. Sustain. Crop Prod. 9(2):17-21, 2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The study concluded that 1 February sowing recorded the maximum seed yield and quality characters and it was on pared with 1 March sowing. The environmental condition prevailed during this month enhanced the growth and yield parameters. Hence for bitter gourd, 1 February or 1 March is the suitable for seed production with maximum seed quality.

Knowledge Management: Journal