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Sources of Resistance in Mungbean Germplasms to Mungbean Yellow Mosaic Virus (mymv) and It’s Management

AHMM Haque
Department of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

R Hasan*
Department of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

MM Islam,
Department of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

E Nousraat
Department of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

SR Modak
Department of Plant Pathology and Seed Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at Pulses Research Sub-Station (PRSS), Bangladesh Agricultural Research Institute, Joydevpur, Gazipur and Regional Agricultural Research Station (RARS), Jessore, Bangladesh during kharif-1, 2014 under rain fed condition to find out the tolerant genotypes against Mungbean Yellow Mosaic Virus (MYMV) where viz. Gk -22, SMZ -134, VC -3669, VC -3960 A -88, VC -3960 A-89, VC 6144, VC -6144 (47 -28 -2), VC -6148 (50 -12), VC -6153 -B -20, VC -6153 -20P, VC-6173, VC -6173 B -33, VC -6372 -(45 -8), VC-6773 -B -6, VC -6897 and BARI Mung -4 Mungbean genotypes were screened. It was found that the genotype VC -6153 -B -20 may be a wonderful source of MYMV tolerance. In the same time another experiment was carried out at Golapgonj, Sylhet and PRSS, Joydevpur for development of management package against the vector of this virus. For these reason five different treatments namely Furadan 3G, Furadan + Admire, Furadan + Neem leaf extract (NLE), Furadan +Sobicron and control were used, where Furadan treated as a basal dose. It was observed that Furadan + Admire treated plots have the lowest incidence (score -2) of MYMV at both locations and produced the highest yields as compared to the other treatments. It is recommended that Admire can be used as a package for controlling MYMV.

Keywords: Mungbean, MYMV, Genotypes, Fungicides, Screening.

Location: Pulses Research Sub-Station (PRSS), Bangladesh Agricultural Research Institute, Joydevpur, Gazipur and Regional Agricultural Research Station (RARS), Jessore, Bangladesh during kharif-1, 2014

Start Date: 00-00-2014

End Date: 00-00-2014

Program Area: Pest Management

Commodity: Fungal Disease, Mungbean

Objectives:

To find out the tolerant genotypes and determine the efficacy of selected chemicals in reducing the incidence and severity of Mungbean yellow mosaic virus and also determine the relationship among the virus, vector and seed yield of Mungbean.

Methodology:

Screening of short duration Mungbean germplasm against MYMV: Fifteen genotypes and a check variety BARI Mung-4 were screened against MYMV at Pulses Research Sub-Station (PRSS) and Regional Agricultural Research Station (RARS), Jessore during kharif-1, 2014 under the rain fed condition. The germplasms viz. Gk -22, SMZ -134, VC -3669, VC -3960 A -88, VC -3960 A -89, VC 6144, VC -6144 (47 -28-2), VC -6148 (50 -12), VC -6153 -B -20, VC -6153 -20P, VC-6173, VC -6173 B -33, VC -6372 -(45 -8), VC -6773 -B -6, VC -6897 and BARI Mung-4 were collected from Bangladesh Agricultural Research Institute, Joydevpur, Gazipur. The experiment was laid out in RCBD with three replications. The plot size was 3 m × 4 m and seeds were sown on 20^th March and the crop was harvested within June 2014 at both locations. General cultural practices were adopted to maintain the experiment except that insecticidal sprays were not applied to encourage the population of the vector for natural disease spreading. Assessment of different germplasms were carried out on the basis of percentage of disease infection and scoring them using recommended 1-9 scale (Singh, 1995) at reproductive stage from 10 randomly selected plants of each plot. The yield was calculated from the grain of whole plot (t ha^-1) and analyzed statistically using MSTAT-C (Gomez and Gomez, 1984). Development of management package for controlling Mungbean Yellow Mosaic Virus (MYMV): Healthy seeds of mungbean variety BARI Mung-4 (susceptible) were directly sown in two different locations Golapgonj, Sylhet, and PRSS, Joydebpur during Kharif-1 2014 for development of management package against MYMV. The plot size was 3 m × 2 m with RCBD having three replications. There were five treatments, namely, Furadan 3G, Furadan + Admire, Furadan + Neem leaf extract (NLE) (spraying), Furadan + Sobicron and control. The insecticides were sprayed at 20, 30 and 40 days after sowing. During the growing period, plots were inspected regularly to record the incidence of MYMV disease from seedling to maturity stage of the crop. MYMV affected plants were counted regularly. For both the locations, the disease was rated on 1 -9 scoring scale (Singh, 1995) for MYMV. The scale was 1= 0% mortality (R), 2 -3 = 10% or less mortality (MR), 4 -5 = 11 –20% mortality (T), 6 -7 =21 -50% mortality (MS) and 8 -9 = 51% or more mortality (S).

Source of Information: J. Sylhet Agril. Univ. 3(1):19-23, 2016 ISSN: 2308-1597

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Screening these sixteen gremplasms, it was found that only one genotype showed tolerance against Mungbean Yellow Mosaic Virus with higher yield. Lack of resistant varieties necessitates the development of virus resistant varieties through genetic engineering and biotechnology in future. Several trails will be required in different locations and years to recommend Admire as a management package of whitefly.

Knowledge Management: Journal