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Effect of Drought on Growth and Yield of Sponge Gourd Lines (2017 – 2018)

M.D. Hossain
Horticulture Research Centre, BARI, Joydebpur, Gazipur-1701

Ferdouse Islam
Horticulture Research Centre, BARI, Joydebpur, Gazipur-1701

M. S. Alam
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

Mohd. Moniruzzaman.
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

Abstract/ Executive Summary:

A pot experiment was conducted at the research field of Olericulture Division, Horticulture Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the Kharif season of 2017-18 to investigate the effect of drought on different sponge gourd genotypes. A total of 10 sponge gourd lines/varieties; LC 1-1-3-1-5-9 (SG-1), LC 1-1-3-1-3-4-5 (SG-2), LC 1-7-8-1-4-1-3-5 (SG-3), LC 3-8-1-1-1 (SG-4), LC 13-1-3-1-2-3 (SG-5), LC 9-4-1-4-1-2-3-4-5 (SG-6), LC 9-4-1-4-4-5 (SG-7), LC 1-7-8-1-4-5 (SG-8), Monalisa (SG-9) and Sonali (SG-10) were included in this study. After transplanting into 15-L pots containing soil and recommended doses of manures and fertilizer, the plants were exposed to three levels of drought viz., Control= Irrigation as per requirement, 7 Days Drought (DD) = Irrigation at 7 days interval and 14DD = Irrigation at 14 days interval. The results revealed that drought stress had negative impact on the physiological as well as yield and yield contributing parameters in all sponge gourd genotypes. At control condition, the numbers of fruits per plant were higher in SG-9 followed by SG-4 and SG-5. At 7DD and 14DD, the same lines also provided the maximum number of fruits per plant. However, most of the sponge gourd genotypes did not produced any fruits at 7DD and 14DD. IFW at 7DD was the highest in SG-2, followed by SG-9 and SG-4. At 14DD, IFW was the highest in SG-4, followed by SG-9. In terms of fruits yield per plant, SG-9 produced the maximum yield at normal condition followed by SG-4 and SG-5. However at 7DD and 14DD, SG-9 produced the maximum yield per plant, followed by SG-5. Based on most of the parameter studied, SG-5 and SG-9 were found to be tolerant at 7DD and 14DD

Keywords: Tolerance, Sponge gourd, Genotypes, Drought,

Location: Olericulture Division, Horticulture Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Sponge gourd, Drought

Objectives:

To study the degree of tolerance of sponge gourd genotypes against drought.

Methodology:

The experiment was conducted at the Olericulture Division, Horticulture Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the months of May 2017 to August 2017 following a completely randomized design with three replications for screening the drought tolerant sponge gourd varieties/lines. Seeds of 10 varieties/lines (2 local varieties and 8 advance lines) were sown on plastic pots (3" dia) containing loamy soil and cowdung. When the seedlings were developed 2 true leaves (22 days after sowing), they were transplanted into 15-L plastic pot containing soil and recommended doses of manures and fertilizer. The pots were irrigated with fresh water. After establishment, the plants were exposed to three levels of drought viz., Control= Irrigation as per requirement, 7 Days Drought (DD) = Irrigation at 7 days interval and 14DD = Irrigation at 14 days interval. Moisture content in the pots was monitored by Soil Moisture Meter. Data were collected on vine length, number of lateral vines, nodes and green leaves per plant, fresh and dry weight of vine and root, number of fruits per plant, individual fruit weight and yield per plant. Collected data were statistically analyzed using XLSTAT 2015 software.

Source of Information: Annual Research Report 2017 – 2018, Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on different growth parameters, and yield and different yield contributing characteristics, LC 13-1-3-1-2-3 (SG-5) and Monalisa (SG-9) were found to be tolerant at 7 and 14 Days Drought stresses. However; the experiment may be repeated in the following year for more confirmation.

Knowledge Management: Report/Proceedings