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Effect of Pruning on Seed Quality of Sweet Gourd (cucurbita Moschata)

M.S. Rahman
Department of Horticulture, BSMRAU, Gazipur.

M. M. Hossain
Department of Horticulture, BSMRAU, Gazipur.

M. A. K. Mian
Department of Genetics and Plant Breeding, BSMRAU, Gazipur.

M. F. Hossain
Department of Plant Pathology, BSMRAU, Gazipur.

Abstract/ Executive Summary:

A study was conducted to evaluate the pruning response on seed quality of sweet gourd at four different treatments viz.T₁ (Maintaining three secondary vines after pruning), T₂ (Maintaining four secondary vines after pruning), T₃ (Maintaining five secondary vines after pruning) and T₄ (control).Number of seed and moisture content (%) showed insignificant variation among the treatments conducted in sweet gourd. The highest germination percent (90.34 %), viability percent (90.07%) and 1000 seed weight (114.0g) were found in the treatment T₁ (3-vine) and the lowest in control treatment, T₄ (80.22%, 60.69% and 91.33 g respectively). The highest seed yield per plant (53.59g) and seed yield per ha (178.5 kg) were found in T₃ treatment (5 vine) which was statistically similar with T₂ treatment (4 vine). The lowest yield of seed per plant (38.16g) and per ha (127.2 kg) were found in T₁ treatment. In addition, relationship against germination percent with 1000 seed weight and viability percent were found. The percentage of germination increased with the increase in 1000 seed weight and increase in seed viability. Results of pruning revealed that T₁ treatment with three vines produced better quality seed and T₃ treatment with five vines produced the highest seed yield (178.5 kg/ha).

Keywords: Pruning response, Sweet gourd, Seed quality.

Location: Seed technology laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur.

Start Date: 00-08-2008

End Date: 00-01-2009

Program Area: Crop-Soil-Water Management

Commodity: Sweet gourd

Objectives:

To evaluate the pruning response on seed quality of sweet gourd.

Methodology:

The experiment was conducted at the research farm as well as in the seed technology laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) during the period from August, 2008 to January, 2009. An advanced sweet gourd line (23 self) collected from Genetics and Plant Breeding Department of BSMRAU was included in this study. The experiment was conducted using Randomized Complete Block Design (RCBD) with three replications. The seeds were sown in 9cm diameter polyethylene bags on 3rd August 2008. Two seeds were sown in each bag. The experimental land was prepared properly. After final land preparation the experimental plots were laid out according to design and raised 10 cm from the ground level. In each 5m x 3m size plot, five pits of 30 cm x 30 cm x 30 cm were prepared. The fertilizers cow dung, TSP, Urea and MP were applied at the rate of 15000, 125, 150 and 100 (Anonymous, 2005). Old seedlings of 28 days were transplanted in well prepared experimental plot on 31 August, 2008. Five plants under each treatment were accommodated in each replicated plot. Careful observations were always kept on the seedlings. Necessary intercultural operations were done throughout the cropping season for proper growth and development of the plant. Main vines were pruned when they attained a length of about 1.00 m to 1.50 m. Plots were selected randomly. Only 3, 4 and 5 secondary vines (T₁, T₂ and T₃ treatments) developed on each of the main vines were kept randomly and others were removed. Tertiary small branches and buds developed from secondary branches were pruned regularly and cut ends were buried. In case of control treatment the plants were totally unpruned. Three plants were selected at random from each plot for recording data.The fruits were harvested from the selected plants when the peduncle dried on maturity and the dried seeds were sealed treatment wise in polythene bags. All bags containing seeds were stored in refrigerator in the laboratory. Data of number of seeds per fruit, 1000 seed weight (g), germination (%), moisture content (%), viability (%) and seed yield per plant (g) and per kilo gram were collected. The recorded data on different parameters were statistically analyzed by using MSTAT software to find out the significance of variation resulting from the experimental treatments. The difference between the treatment means were judged by Duncan's Multiple Range Test (DMRT).

Source of Information: Ann. Bangladesh Agric. (2013) 17 (1 & 2): 263-268 ISSN 1025-482X

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Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Results of pruning revealed that T₁ treatment with three vines produced better quality seed and T₃ treatment with five vines produced the highest seed yield (178.5 kg/ha).

Knowledge Management: Journal