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Field Screening of Selected Mungbean Lines Resistant to Yellow Mosaic Virus (ymv) and Cercospora Leaf Spot (cls) (2017--2018)

M SHAHIDUZZAMAN
Pulses Research Centre, RARS, BARI, Joydebpur, Gazipur

Abstract/ Executive Summary:

An experiment was conducted at Regional Pulses Research Station (RPRS), Madaripur during Kharif-I, 2018 to evaluate the performance of mungbean genotypes for searching of Yellow Mosaic Virus (YMV) and Cercospora Leaf Spot (CLS) disease resistant and high yielding lines. Twenty-one mungbean lines with a check BARI Mung-6 were evaluated in the trial. Results revealed that BMMP-201524 gave the lowest MYMV score (1.66) where the line BMMP-201510 gave the highest (6.66) score. Maximum germplasm showed a resistant reaction against CLS. The highest yield (1750 kg/ha) obtained in BMMP-201518 and BMMP-201519 whereas the lowest (800 kg/ha) in BMMP-201510.

Keywords: Mungbean, Yellow mosaic virus, Cercospora leaf spot

Location: Regional Pulses Research Station (RPRS), Madaripur

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Pest Management

Commodity: Virus, Mungbean

Objectives:

To find out suitable mungbean lines which are more tolerant to MYMV having the high yielding capacity and to use resistant host is most important to find out a useful way of management of this disease.

Methodology:

The field trial was conducted at Regional Pulse Research Station (RPRS), BARI, Madaripur during Kharif-I, 2018 under irrigated conditions. Twenty-one genotypes/lines viz. BD-6941, BD-6943, BMMP-201501, BMMP-201502, BMMP-201503, BMMP-201504, BMMP-201506, BMMP-201508, BMMP-201510, BMMP-201511, BMMP-201512, BMMP-201513, BMMP-201514, BMMP-201515, BMMP-201516, BMMP-201517, BMMP-201518, BMMP-201519, BMMP-201520, BMMP-201524, BMMP-201525 and one check BARI Mung-6 were evaluated in the trial. All the genotypes were selected from the previous year trial consisted of 42 genotypes of Kharif-I, 2017. The experiment was laid out in Lattice design. The spacing was 40 cm X 05 cm. Seeds were sown on March 15, 2017. Two weeding were done to keep the crop weed-free up to the first picking. MYMV data are taken on a 0-8 scoring scale (Malik, I. A. 1992)

Source of Information: Annual Research Report 2017-2018, Pulses Research Centre, RARS, BARI, Joydebpur, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The best (1.66) MYMV score obtained in BMMP-201524 and maximum (6.66) score was found in the line BMMP-201510. There was one entry graded as immune reaction bearing score 1.66, four graded as highly resistant bearing score 2.00-2.66, ten genotypes grouped into resistant bearing score 3.00-3.66, three graded as moderately resistant bearing score 4.00-4.33, two graded as susceptible which took the score 5.00 and two as susceptible bearing score 6.33-6.66. There was twelve entry graded as resistant bearing score 3.33-3.66, nine graded as moderately resistant bearing score 4.00-4.66 and one graded as susceptible which took the score 7.00. Experimental results revealed that all the yield components studied under different environmental conditions varied to a significant level. Days to flower varied from 33-39. Days to maturity was varied from 58-67. The number of branches/plants varied from 2.33-3.00. Plant height ranged from 57.00-80.33. The maximum (80.33) height found in the line BMMP-201511 and the minimum (57.00) in BMMP-201514. The unusual plant growth might be due to excessive soil moisture during the growing season caused by frequent rainfall. The number of pods/plants varied from 11.13-22.00. The maximum (22.00) number of pods/plant produced by the line BMMP-201506 and minimum (11.13) by BMMP-201513. Tall plants produced a lower number of pods results in an imbalanced yield. The number of seeds/pod varied from 8.00-11.00. The highest (11.00) number of seeds/pod was found in BMMP-201518 and lowest in (8.97) in BMMP-201511. Pod length varied from 7.66-9.66 cm. The highest pod length found in BMMP-201514 (9.66 cm) and lowest (7.66 cm) in BMMP-201510 and BMMP-201518. 100 seed weight varied from 4.33-5.80. The maximum (5.80 g) 100 seed weight observed in BARI Mung-6 and lowest (4.33 g) in BMMP-201511.The yield (kg/ha) of the tested genotypes varied from 800-1750. Among the entries, BMMP-201518 and BMMP-201519 produced the highest yield (1750 kg/ha) and the lowest in BMMP-201510 (800 kg/ha). The variation of yield among the germplasm might be due to variation in podding potentiality, seed weight, seed size etc. Among the 21 lines, 15 lines showed immunity to a resistant reaction against YMV.

Knowledge Management: Report/Proceedings