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Assessment of Several Mustard Varieties Resistance to Mustard Aphid, Lipaphis Erysimi (kalt.)

M. S. A. Mamun
Department of Entomology, Bangladesh Agricultural University, Mymensingh

M. H. Ali
Department of Entomology, Bangladesh Agricultural University, Mymensingh

M. M. Ferdous
Department of Entomology, Bangladesh Agricultural University, Mymensingh

M. A. Rahman
Department of Agronomy and Agricultural Extension, Rajshahi University, Bangladesh

M. A. Hossain
Research Fellow
Green Global Foundation(GGF)-International, Dhaka, Bangladesh

Abstract/ Executive Summary:

The field experiment, was conducted at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA) sub-station, Ishuardi. Four varieties namely, MM014-02wf, MM012-02ys, MM2-16-98, MM01l-02rb and Binasarisha-4 one check variety of mustard were tested against the mustard aphid, Lipaphis erysimi (Kalt.) under natural and artificial conditions. The result showed that the resistant or less susceptible variety had lower aphid infestation. Generally, aphid infestation showed trend from flowering stage, reached the peck at pod formation stage, and then trended to decline in all the mutants/variety. The highest yield was observed in the variety MM014-02wf, which had lowest aphid infestation. Considering the results of all parameters responsible for aphid resistance or susceptibility at the field and net house studies, the tested variety.

Keywords: Mustard, Aphid, Resistance, Varieties

Location: The experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA) sub-station, Ishuardi

Start Date:

End Date:

Program Area: Pest Management

Commodity: Mustard

Objectives:

Objectives of the study were

To observe the reaction of several mustard varieties to mustard aphid, L. erysimi (Kalt.) in the field as well as in the net house
To study the effect of damage done by mustard aphid population on the yield and yield contributing characters of four mustard varieties and one check variety.

Methodology:

The field experiment, was conducted at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA) sub-station, Ishuardi and is situated approximately between the latitudes of 24^o 75' N and between the longitudes of 89^o 07' to 90^o 30' E at a height of 18.0 meter above the mean sea level. The net house and laboratory experiments with artificial infestation were conducted at the Entomology Division, BINA, Mymensingh. The climate of the region is sub-tropical characterized by heavy rainfall along with moderately high temperature and humidity. The soil of the experimental field area was under the Calcareous Brown and high Ganges River Floodplain sandy loam soil with fine texture having a pH value of 80. The plots were fertilized with Urea, TSP, MOP and Zypsum at the rate of 260 Kg, 20 Kg, 66 Kg and 40 Kg per hectare respectively. Only one flood irrigation was given at the vegetative stage in the field. Four varieties and one check variety namely MMO14-02wf, MM012-02ys, MM011-02rb, MM2-16-98 and Binasarisha-4 were used for the experiments. The susceptibility of these varieties to aphid infestations were assessed on the basis of field, laboratory and net house experiments. On the basis of nymphal and oviposition periods, fecundity and rate of aphid multiplication, they selected some genotypes for use in future breeding programme for evolving insect resistant varieties. The total number of infested and uninfested plants at flowering stage were counted from two rows randomly selected from each plot. Thus the percentage of infested plant by aphid was calculated using the formula. The population of aphid in the field was counted on 10 randomly selected plants from each plot at flowering stage. The mustard crops were harvested at full maturity. The crops were harvested by uprooting the plants. From each plot 10 plants were randomly selected to obtain various yield attributing parameter such as plant height, number of branch per plant, number of pods per plant, number of seeds per pod. Plant height of the above ground portion of the plant was measured by meter scale. Seed yield was recorded after harvest. Seeds were collected from each plot and were sum-dried. The results were expressed in kg/ha. The plants were at flowering stage, a single plant was selected and infested artificially with field collected aphid in each pot. Each plant was covered with nylon net and tied with a thread (Plate II). After 10 days of artificial infestation, the plants were uprooted carefully and each plant was kept separately and brought to the laboratory. The data were adjusted by using Duncan's New Multiple Range Test (DMRT) and Least Significant Difference (LSD) test at 5% and 1% level.

Source of Information: J. Soil Nature 4(1):34-38, 2010, Mymensingh-2202

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The use of aphid resistant varieties have number of advantages, as the resistance is inherent in the plant itself with no extra cost involved in the control measures. Therefore, the use of resistant varieties such as MM014-02wf, Binasarisha-4 are the most effective and important weapon for controlling aphids without insecticides application and thereby play an important role in Integrated Pest Management (IPM) Program. Hence, the farmer will be suggested to grow aforesaid resistant or less susceptible and high yielding varieties. This will help them to ensure higher yield of mustard and at the same, the risk of health hazard and environment pollution may be avoided.

Knowledge Management: Journal