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Effect of Spacing and Seed Rate on the Seed Production of Sesbania (sesbania Rostrata)

N. M. A. Badsha
Field Officer
Seed Certification Agency, Thakurgaon

M. A. Samad
Professor
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

M. O. Hoque
Senior Scientific Officer
Agricultural Research Station, BARI, Thakurgaon

Abstract/ Executive Summary:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, during the period from April to October 1999, to ascertain the suitable spacing and optimum seed rate for maximum seed production of Sesbania rostrata. The experiment consisted of four spacings viz. 40, 50, 60 cm and broadcasting and five different seed rates viz. 10, 20, 30, 40, 50 kg per hectare. The experiment was laid out in split plot design with three replications. The highest number of flowers per plant, number of branches per plant, number of pods per plant and 1000 seed weight was found in 60 cm spacing. The 10 kg per hectare seed rate gave the highest value of the same parameters. The seed yield was also influenced significantly by the spacing. The highest seed yield (1.36 t/ ha) was found in the closest spacing (40 cm) and the lowest yield (0.73 t/ha) was found in the broadcasting method. In case of seed rate the highest seed yield ((1.43t/ha) was obtained from 40 kg per hectare while the lowest seed yield (0.61 t/ha) was in 10 kg seed per hectare. Combined effect of spacing and seed rate had also significant effect on seed yield. The highest seed yield (1.74 t/ha) was observed from 40 cm spacing coupled with 40 kg seed per hectare.

Keywords: Spacing, Seed rate and seed production, Sesbania.

Location: Agronomy Field Laboratory , BAU, Mymensingh

Start Date: 00-04-1999

End Date: 00-10-1999

Program Area: Crop-Soil-Water Management

Commodity: Sesbania

Objectives:

To ascertain the proper spacing and optimum seed rate and for maximum yield realization of Sesbania rostrata.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory , BAU, Mymensingh during the period from April to October 1999 to ascertain the suitable spacing and optimum seed rate for maximum seed production of Sesbania rostrata. The experiment consisted of four spacing’s viz. 40 cm (S?),50 cm (S₂ ),60 cm (S₃) and broadcasting (S₀) and five level of seed rates 10 (D₁), 20 (D₂), 30 (D₃), 40 (D₄), 50 (D₅) kg per hectare. The experiment was laid out in split plot design with three replications. The unit plot size was 3m x 4m. Spacing treatments were applied in the main plot and seed rates in the subplots. Thus the total number of unit plots was 60. The land was fertilized with TSP at 6he rate of 40kg and MOP at the rate of 25kg per hectare as basal during final land preparation. No urea fertilizer was applied in the crop. The Seeds of Sesbania rostrata were sown on 4 May 1999 and the crop was harvested on 25 October 1999. Weeding and irrigation was done as and when necessary. Data on different parameters were collected from randomly selected 10 plants and statistically analyzed following the method as suggested by Gomez and Gomez (1984). Duncun’s Multiple Range Test (DMRT) was used in comparing the means of different treatments and treatment combinations.

Source of Information: Bangladesh J. Seed Sci. & Tech. 16 (1 & 2): 1-6 (2012), ISSN 1029 - 8800

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present investigation suggested that 40 cm spacing was the best for Sesbania rostrata production and 40 kg seed per hectare was optimum seed rate to achieve the maximum yield of the crop.

Knowledge Management: Journal