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Screening of Bitter Gourd Genotypes Against Salinity (2017 – 2018)

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

M.A. Ullah
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

M. A. T Masud
Horticulture Research Centre, BARI, Joydebpur, Gazipur Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the plastic house of Olericulture division, Horticulture Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the Kharif season of 2017-18 to investigate the effect of salinity on different bitter gourd genotypes. Seven bitter gourd varieties / advanced line; BARI Karola-1 (BG-1), BARI Karola-2 (BG-2), AVBG 1308 (BG-3), AVBG 1310 (BG-4), AVBG 1323 (BG-5), MC 115-1 (A)-6-3 (BG-6) and MC 115-1 (C)-9-12 (BG-7) were included in this study. The plants were grown hydrophonically and exposed to control and 8 dS/m salinity stresses. The results revealed that in most cases, soil salinity reduced the number of lateral vines, nodes and green leaves per plant, the length of vine and root, fresh weight of vine and root, dry weight of vine and root, and number of fruits per plant, individual fruit weight and fruit yield per plant in different bitter gourd genotypes. At control condition, BG-1 produced the maximum number of fruits per plant while the genotype BG-4 produced the lowest number. At 8 dS/m salinity stress, BG-1 produced the maximum number of fruits per plant followed by BG-6, and BG-4 did not produce any fruits. At control and stressed condition, BG-5 followed by BG-6 produced bigger sized fruits while BG-3 produced the smallest ones. In case of yields per plant, BG-1 and BG-6 gave higher yield of fruits per plant both at normal and stressful condition. From the current study it can be stated that BG-1 and BG-6 had some salt tolerant potential at 8 dS/m salinity stress, while the rest of the genotypes are salt susceptible.

Keywords: Bitter gourd, Genotypes, Salinity, Salt tolerance

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

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Variety and Species

Commodity: Bitter gourd, Soil salinity

Objectives:

To screen out bitter gourd genotypes against salinity and to investigate the mechanism of salt tolerance and sensitivity.

Methodology:

The experiment was conducted at the plastic house of Olericulture Division, Horticulture Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the months of June 2017 to September 2017 following completely randomized design with three replications for screening the salt tolerant bitter gourd varieties/lines. Seeds of 7 varieties/lines (2 varieties and 5 advance lines) were sown on coco-dust. When the seedlings were developed 2 true leaves (15 days after sowing), they were transplanted into hydrophonic structures made of 4" uPVC pipe (plant to plant distance 1', ten seedlings/pipe) containing Modified Hogland Nutrient Solution. After two weeks of transplanting, Nutrient Solution was changed with fresh nutrient solution incorporated with salt solution (total EC 8 dS/m). For control plants, only nutrient solution (2 dS/m) was applied in to the hydrophonic units. The salinization were repeated in every 15-day and continued upto first harvesting stage. Data were collected on vine length, number of lateral vines, nodes and green leaves/plant, fresh and dry weight of vine and root, number of fruit/plant, individual fruit weight and yield/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 physiological data, yield and yield attributes, it can be stated the BARI Karola-1 (BG-1) and MC 115-1 (A)-6-3 (BG-6) had some salt tolerant potential at 8 dS/m salinity stress, while the rest of the genotypes are salt susceptible. However, the experiment may be repeated for further confirmation.

Knowledge Management: Report/Proceedings