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Screening of Different Organic Materials Against Root-knot Nematode of Tomato

M. I. Faruk
Senior Scientific Officer
Plant Pathology Division, Gazipur

F. Elahi
Scientific Officer
Plant Pathology Division, Gazipur

Abstract/ Executive Summary:

A field experiment was conducted to evaluate the organic materials for management of root knot nematode (Meloidogyne incognita) of tomato. Root knot nematode infested soils were treated with Furadan 5G, saw dust, rice husk, poultry refuse contained poultry bedding materials and tea waste. All the treatments gave appreciable reduction of gall development on roots and increased plant growth as well as yield of tomato. Among the treatments, poultry refuse contained poultry bedding materials appeared to be the best amended materials for root knot nematode reduction and improvement of plant growth as well as increased yield of tomato followed by saw dust.

Keywords: SCREENING, ORGANIC MATERIALS, ROOT-KNOT, NEMATODE, TOMATO

Location: Joydebpur

Start Date:

End Date:

Program Area: Pest Management

Commodity: Tomato

Objectives:

To screen available and low cost organic materials to manage root-knot nematodes and to increase yield of tomato.

Methodology:

The experiment was conducted during Rabi 2012-13, in the field of Plant Pathlogy Division BARI, Joydebpur, Gazipur with 7 treatments namely i) Furadan (F) 5G @ 40 kg ha-1, ii) Fresh saw dust @ 10 g plant^-1, iii) Dry saw dust @ 10 g plant^-1, iv) Rice husk @ 10 g plant^-1, v) Poultry refuse contained poultry bedding materials @ 10 g plant^-1, vi) Tea waste @ 10g plant^-1 and vii) Untreated control. The experiment was laid out in a randomized complete block design with 3 replications. The plants were inoculated with one gram of severely infected galled chopped roots of tomato. The unit plot size 3m x 2.5m keeping 1m distance from plot to plot. Plant to plant distance 50 cm and line to line distance 60 cm was maintained. All the organic materials were applied two days before seedling transplanting. After application the organic materials were properly mixed with the soil and kept moist. Furadan 5G was used at the time of transplanting of seedling. Thirty days old tomato seedlings cv. Ratan, grown on sterilized soils was transplanted. An additional 10 seedlings were transplanted in between two lines in each plot and fertilizers were applied during final land preparation, weeding and irrigation were done as and when necessary. After 65-70 days transplantation, the additional 10 seedlings from each plot was uprooted carefully without disturb the root system for data recording. Data collection: Data on plant height, plant weight, root length, root weight and yield were recorded. Gall index was recorded following 0-10 scale (Zeck, 1971) at 65 days after transplanting and after final harvesting of tomato.

Source of Information: Annual Report, Plant Pathology Division, 2012-13

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It is observed that all the treatments had significant effect on the suppression of root-knot nematodes and increasing plant growth and yield of tomato. The maximum average gall index value 4.94 at 65 days after transplanting and 6.27 at harvest were recorded from the control and the minimum average gall index value 1.94 at 65 days after transplanting and 2.80 at harvest were recorded in poultry refuse contained bedding materials treatments. Significantly lower average gall value was also recorded from soil amended with saw dust compared to control which was similar as soil treated with Furadan 5G. The highest shoot height, shoot weight and root length were resulted from the treatments when poultry refuse contained bedding materials was applied followed by soil amendment with saw dust. The lowest shoot height, shoot weight and root length was observed in control treatment. Soil amendments with rice husk and tea waste were found to be less effect on the growth of tomato plant. All the treatments gave significantly higher yield in comparison to control treatment. Under control, fruit number per plant was 23.6 and fruit yield only 49.73 t ha^-1 and it was increased to 26.27-32.27 per plant and 54.56-71.62 t ha^-1 due to different treatments. Soil amendment with poultry refuse contained bedding materials gave the highest number of fruits per plant as well as the highest fruits yield which appeared to be 30.56% higher yield over control followed by soil amendment with saw dust and Furadan 5G application by 22.77% and 17.17% ,respectively. The lowest number fruits as well as yield was recorded from the control treatment. Comparatively lower yield increase was achieved with soil amendment with rice husk and tea waste.

Knowledge Management: Report/Proceedings