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Control of Foot and Root Rot of Lentil by Using Different Management Tools

K. M. Khalequzzaman
Principal Scientific Officer (Plant Pathology)
Spices Research Centre (SRC), Bangladesh Agricultural Research Institute (BARI), Shibganj, Bogura, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the sick plot, Pulses Research Centre, Ishurdi, Pabna, Bangladesh during 2011-12 to find out the effect of chemical, botanicals, biocontrol agents and healthy looking seeds against foot and root rot of lentil. Chemical, botanicals, biocontrol agents and healthy looking seeds were used as treatments in this experiment. The lowest foot and root rot (21.67%) was obtained from when seed treatment with Provax 200 (2.5 g/kg seed) which was followed by seed treatment with Trichoderma harzianum compost (1:5) and apparently healthy looking seeds, and the highest incidence (41.50%) was obtained from untreated control. The highest number of pod/plant (45.26), number of seeds/plant (87.80), weight of seeds/plant (2.44 g) and yield (1845 kg/ha) were recorded in seed treatment with Provax 200 (2.5 g/kg seed) which were followed by seed treatment with Trichoderma harzianum compost (1:5) and apparently healthy looking seeds, and the lowest of these parameters were obtained from untreated control.

Keywords: Management Tools, Foot and root rot, Lentil

Location: Pulses Research Centre, Ishurdi, BARI, Pabna, Bangladesh

Start Date: 01-11-2011

End Date: 30-04-2012

Program Area: Pest Management

Commodity: Diseases, Lentil

Objectives:

To find out the effect of different management tools viz. chemical, botanicals, biocontrol agents and healthy looking seeds against foot and root rot of lentil.

Methodology:

The experiment was conducted in the sick plot, Pulses Research Centre, Ishurdi, BARI, Pabna, Bangladesh during 2011-12. The experimental plot was prepared with five ploughings and cross ploughings followed by laddering to break the clods as well as level the soil. The weeds and stubbles of previous crops were collected and removed from the soil. Urea @ 50 kg/ha, TSP @ 90 kg/ha, MP @ 40 kg/ha and Boric acid 5 kg/ha were applied during final land preparation (Anonymous, 2011). The experiment was carried out following Randomized Complete Block Design with three replications. Size of the plots was 2.0 m × 1.6 m and plant spacing was 30 cm with continuous sowing. Eight treatments were T1=Seed treatment with Neem leaf extract (1:5), T2=Seed treatment with Neem oil (1:5), T3=Seed treatment with Garlic extract (1:5), T4=Seed treatment with Trichoderma viride compost (1:5), T5=Seed treatment with Trichoderma harzianum compost (1:5), T6=Seed treatment with Provax 200 (2.5 g/kg seed), T7=Apparently healthy looking seeds and T8=Untreated Control. The susceptible lentil variety was used BARI Lentil-1. Seeds were sown on November 15, 2011. Intercultural operations were done as per needed and to maintain the normal hygienic condition of crop in the field. Insecticide (Tufgor @ 0.2%) and fungicide (Rovral 50 WP @ 0.2%) were sprayed after flowering when aphid infestation and Stemphylium blight disease were observed, respectively. During the growing period the plots were inspected regularly to record the incidence of foot and root rot disease from seedling to maturity stage of the crop. Dead plants were removed from the field after counting. Disease plant parts were collected in laboratory for identifying foot and root rot pathogens. The crop was harvested on February 28, 2012. Data were recorded on foot and root rot, plant survival, plant height number of pods/plant, number of seeds/plant, weight of seeds/plant and yield. The incidence of foot and root rot of lentil was recorded at every alternate day. The incidence of foot and root rot disease of lentil was calculated.

The recorded data were analyzed statistically to find out the level of significance and the variations among the respective data were compared following Duncan’s New Multiple Range Test (DMRT) according to Gomez and Gomez (1984).

Source of Information: ABC Journal of Advanced Research, Volume 5, No 1 (2016); ISSN: 2304-2621(p); 2312-203X (e)

Article Link (Online Journal): https://pdfs.semanticscholar.org/a242/5b83f13bd1bbb2b1f2789d0d1f5d2727efd5.pdf

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Seed treatment with Provax 200 (2.5 g/kg seed) showed better performance followed by seed treatment with Trichoderma harzianum compost (1:5) and apparently healthy looking seeds to control foot and root rot and increase yield of lentil.

Knowledge Management: Journal