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Characterization and Evaluation of Pea Germplasm in Bangladesh

MM Rahman
SO
Pulses Research Sub- Station, BARI, Gazipur

M.Shain-uz- Zaman
SSO
Pulses Research Center, BARI, Ishurdi, Pabna

MS Iqbal
SO
Pulses Research Center, BARI, Ishurdi, Pabna

N Naher
SO
Pulses Research Sub- Station, BARI, Gazipur

MM Hossain
SO
Pulses Research Sub- Station, BARI, Gazipur

Abstract/ Executive Summary:

Two hundred and twenty two genotypes of pea were evaluated to estimate the variation among the genotypes and to find out the short duration line for fitting rice based cropping system in between rice, fighting climate change in Bangladesh. All the genotypes were grouped into twelve clusters. The composition of various clusters varied from 1 to 40. Cluster V comprised of 40 genotypes followed by cluster XI, II, IX, IV and VII consisting of 30, 26, 24, 22 and 20 genotypes, respectively. There were 15 genotypes in clusters VI, 13 in cluster XII, 11 in cluster X, 9 in cluster I, 8 in cluster VIII while 1 genotype in cluster III. Cluster VII exhibited the lowest mean value for days to flower (28) and days to maturity both in fresh pod and seed harvest followed by cluster XII. The highest pod length and hundred seed weight also observed in cluster VIII but the highest yield per plant was recorded in cluster III followed by cluster VI. Cluster III also showed the highest number (6.7) of branch and pods (31.0) per plant whereas cluster I had genotypes with the highest plant height (152 cm) and highest number of seeds per pods.

Keywords: Field Pea, Pisum sativum, Characterization, Evaluation, Cluster analysis

Location: PRC Ishurdi.

Start Date:

End Date:

Program Area: Variety and Species

Non-commodity: Performance

Objectives:

1. To find out the short duration lines with economically important traits for releasing as a variety,

2. To characterized the field pea genotypes as per the DUS guidelines,

3. To estimate the genetic parameters of variability for yield and its attributing traits,

4. To screen out characters based on the direct and indirect effect towards yield,

5. To identify suitable genotypes for yield and quality attributing traits and also their further utilization in the breeding programs.

Methodology:

A total of 220 germplasm from exotic and local sources collected earlier were evaluated at PRC Ishurdi. Each entry was planted on 13 November, 2011 in one/two rows plot of 2 m length with plant spacing of 40 cm x about 5 cm. Data was recorded on quantitative traits from five randomly selected plants where as rust and powdery mildew disease score was recorded from whole plot. Selection emphasis was given on short duration (early/extra early) and disease reaction (Powdery mildew and Rust) to fit them in between Aman and Boro rice (project objective). Some were also selected for their high yield and disease reaction so that they can be grown as relay crop or sole crop. The screening of rust and powdery mildew diseases were done just in natural environment. At maturity best individual lines were selected on the basis of earliness, disease reaction, insect susceptibility (against pod borer) and higher yield. The traits were included Days to flower, Days to maturity, plant height, Pods per plant, Pods per cluster, Cluster per plant, Pod length (cm), Seeds per pod, 100 SW (gm) and Grain yield/plant (gm). The genetic diversity was studied following the generalized distance (D²) of Mahalanobis extended by Rao. The accessions were grouped into clusters using canonical vitiate analysis. The statistical analysis was done using Genstate 5 computer software.

Source of Information: Eco-friendly Agril. J. 10(04):40-44, 2017 (April)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

There are 7 genotypes 244105, EARLY-97, BD4223, 34223, EARLY-94, PEA-88 and BD-4245 were selected for extra early and 15 genotypes 250428,BD-7216,BD-7211,BD-9053,BD-9045,BD9047,BD-4228,BD-4209,BD-9052,BD-9041,BD-4222, BD-4493,210618,347516 and 244227 were selected for seed purpose pea genotypes for next multiplication trial to find out the desired lines of pea as per utilized in crop improvement program.

Knowledge Management: Journal