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Characterization of Brinjal Germplasm (set-ii) (2019--2020)

K U AHAMED
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

RU CHOUDHURY
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

M S UDDIN
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

R AFROZ
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

S RAHMA
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

M N ISLAM
Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

Abstract/ Executive Summary:

The study was conducted at Regional Plant Genetic Resources Center, Regional Agricultural Research Station, Ishurdi, Pabna during the rabi season of 2019-2020 to identify the important traits of brinjal accessions. The experiment involved thirty-six brinjal germplasm. Variations among brinjal accessions were observed in different qualitative characteristics. Upright, intermediate to prostrate plant growth was observed. Leaf bade lobing was found weak, intermediate to strong, and very acute, acute to intermediate in leaf blade tip angle were observed. Variations were found in the number of prickles and leaf hair. Among the accessions, different flower colour were observed like pale violet, light violet, and bluish violet. Plant growth habit was upright for 20 accessions, intermediate for 5 accessions (17.94%), and strong for 11 accessions (30.56%). Leaf-blade lobing was weak for 4 accessions (11.11%), intermediate for 12 accessions (33.33%) and strong for 17 accessions (47.22%), and very strong for 3 accessions (8.33%). Fruit curvature was straight for 26 accessions (72.22%), slightly curved for 2 accessions (5.56%), curved for 5 accessions (13.89%), and snake-shaped for 3 accessions (8.33%). Fruit colour was green for 13 accessions (36.11%), milk-white for 5 accessions (13.89%), scarlet red for 2 accessions (5.56%), lilac grey for 3 accessions (8.33%), purple for 8 accessions (22.22%), purple-black for 3 accessions (8.33%) and black for 2 accessions (5.56%). Variations among brinjal accessions were observed in respect of days to first flowering, days to first edible fruiting stage, plant height, number of fruits per plant, fruit weight (g), fruit weight per plant (kg), and 100- seed weight. The first flower initiation was noticed in SM Ish-017 (82 days). The highest fruit weight per fruit (266.38 g per fruit) was recorded from SM Ish-001 and the lowest fruit weight (77.65 g per fruit) from SM Ish-014. The highest fruit weight per plant (5.38 kg per plant) was recorded from SM Ish-015 and the lowest fruit weight per plant (2.09 kg per plant) from SM Ish-032.

Keywords: Genetic diversity, Accessions, Brinjal, Characterization, IBPGR

Location: Regional Plant Genetic Resources Center, Regional Agricultural Research Station, Ishurdi, Pabna

Start Date: 00-00-2019

End Date: 00-00-2020

Program Area: Variety and Species

Commodity: Brinjal

Objectives:

The experiment was undertaken to study the genetic diversity, identify salient features that distinguish accessions from one another, and identify the accessions having useful traits. The present investigation was conducted with the specific objective of identifying suitable local brinjal accessions.

Methodology:

The experiment was conducted at Regional Plant Genetic Resources Center, RARS, Ishurdi, Pabna during 2019-2020. The experiment involves thirty-six brinjal accessions. The main field was prepared 10 days before transplanting the seedlings. The recommended doses of manure and fertilizers such as 5 ton ha^-1 cow dung, 120 kg N, 36 kg P, 90 Kg K, 15 kg S, and 2.0.kg ha-1 Zn in the form of urea, triple superphosphate, murate of potash, gypsum and zinc sulphate (monohydrate), respectively were applied in the experimental field (FRG, 2018). The full doses of cowdung, TSP, gypsum, and zinc sulphate were applied during land preparation before one week of transplanting. Urea and MP were applied in the three equal splits at 21,35 and 50 days after transplanting as ring method around the plant followed by irrigation (10-15) days interval during the dry season. The experiment was conducted in a non-replicated design. The unit plot size was 3 m X 2 m and 9 plants were accommodated in a plot with a plant spacing of 75 cm apart and row to row distance of 100 cm (excluding 50 cm drain). The seedlings were transplanted on 19 October 2019. The plants were given the support of 1 m height bamboo sticks. Admire (0.5 ml per litre) was applied for controlling aphids. Twenty-five observations on qualitative (12) and quantitative (13) characteristics were classified into descriptor states as per Descriptors for Eggplant (IBPGR, 1990). Range, mean, standard deviation, and coefficient of variation of quantitative characters were calculated.

Source of Information: Annual Research Report 2019--2020, Plant Genetic Resources Centre, BARI, Joydebpur, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Variations among 36 brinjal accessions were observed in different qualitative characteristics. Upright, intermediate to prostrate plant growth was observed. Leaf bade lobing was found weak, intermediate to strong, and very acute, acute to intermediate in leaf blade tip angle were observed. Variations were found in the number of prickles and leaf hair. Among the accessions, different corolla colour were observed like pale violet, light violet, and bluish violet. The accessions SM Ish-001, SM Ish-015, SM Ish-018, SM Ish-010, SM Ish-011, SM Ish-012, SM Ish-024, and SM Ish-027 germplasm gave high edible fruit weight per fruit and per plant (4.77 to 5.38 kg/plant) and it may be considered as better accessions. These accessions may be used in the brinjal improvement program.

Knowledge Management: Report/Proceedings