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Management of Foot and Root Rot Disease of Fennel

K. M. Khalequzzaman
Principal Scientific Officer
Spices Research Centre, BARI, Shibganj, Bogura, Bangladesh

Abstract/ Executive Summary:

This study was conducted at Spices Research Centre, BARI, Shibganj, Bogura, Bangladesh during Rabi season of 2018-2019 to find out the suitable control measures in controlling foot and root rot disease of fennel (Foeniculum vulgare Mill.). Four fungicides, turmeric powder, poultry refuse and one control were the treatment. Foot and root rot incidence of fennel under different treatments ranged from 7.14 - 29.39%, while the lowest incidence was observed in seed treatment and soil drenching with Provax 200 WP (Carboxin + Thiram) at 0.25%, which was followed by Seed treatment and soil drenching with Autostin 50 WDG (Carbendazim) at 0.25%, and the highest foot and root rot incidence was observed in untreated control. Seed treatment and soil drenching with Provax 200 WP (Carboxin + Thiram) at 0.25% gave the highest number of seeds per plant (6588), weight of seeds per plant (20.57 g) and seed yield (2.01 t/ha) which was followed by seed treatment and soil drenching with Cabriotop (0.3%) and seed treatment and soil drenching with Autostin (Carbendazim) at 0.25%, and the lowest of these parameters were recorded in Control plots. So, farmers and researchers may Provax 200 WP (0.25%) or Autostin 50 WDG (0.25%) to decrease foot and root rot disease and increase seed yield of fennel.

Keywords: Management; Provax 200 WP; Autostin 50 WDG; Foot and root rot; Fennel

Location: Spices Research Centre, BARI, Shibganj, Bogura, Bangladesh

Start Date: 01-11-2018

End Date: 30-04-2019

Program Area: Pest Management

Commodity: Fungal Disease, Fennel

Objectives:

To find out the control measures of foot and root rot of fennel.

Methodology:

The experiment was conducted at Spices Research Centre, BARI, Shibganj, Bogura, Bangladesh during Rabi season of 2018-2019. The experimental plot was prepared with five ploughing and cross ploughing 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. Cowdung at 5 t/ha, Urea at 180 kg/ha, TSP at 175 kg/ha and MOP at 140 kg/ha were applied. The entire quantity of cowdung, TSP and MOP was applied during final land preparation. Urea was applied in two equal splits one half at 20 days after germination and the other half at flowering stage followed by irrigation (Anonymous, 2017). The experiment was carried out following Randomized Complete Block Design (RCBD) with three replications. Size of the unit plot was 2.5 m × 1.2 m and plant spacing was 40 cm × 10 cm. BARI Mouri-1 was used in the experiment. The treatments were T₁= Seed treatment and soil drenching with Turmeric powder at 0.5%, T₂= Poultry refuse at 3.5 t/ha (Soil amendment before 3 weeks of seed sowing), T₃= Seed treatment and soil drenching with Autostin (Carbendazim) at 0.25%, T₄= Seed treatment and soil drenching with Cabriotop (Matiram 55% + Pyraclostrobin 5%) at 0.3%, T₅= Seed treatment and soil drenching with Provax 200 WP (Carboxin + Thiram) at 0.25%, T6= Seed treatment and soil drenching with Iminant Pro (Tetraconzole + Carbendazim) at 0.1% and T₇= Control. Seeds were treated before sowing as per treatment and crop base at soil level was sprayed with the fungicides five times at an interval of 7 days from seedling stage. Treated seeds were sown on November 8, 2018. Three weeding were done at 25, 50, and 75 days after emergence and three irrigation were also applied just after five days of each weeding. Other intercultural operations were done to maintain the normal hygienic condition of crop in the field. The plots were inspected regularly to take observations on foot and root rot disease from seedling to maturity stage of the crop. Dead plants were counted and removed from the field. Disease plant parts were collected in the laboratory for identifying foot and root rot causal pathogens. The crop was harvested from April 15-20, 2019. Data were recorded on foot and root rot incidence, plant survival, number of primary and secondary branches per plant, plant height at harvest, number of umbels per plant, number of umbel lets per umbel, number of umbel lets per plant, number of seeds/umbel, weight of seeds/umbel, number of seeds per umbel, weight of seeds per umbel, number of seeds per plant, weight of seeds per plant, and seed yield. The incidence of foot and root rot of fennel was recorded at every alternate day. The incidence of foot and root rot of fennel was calculated by a formula. The recorded data were analyzed statistically using Duncan’s New Multiple Range Test (DMRT) according to Gomez and Gomez (1984).

Source of Information: Nippon Journal of Environmental Science, 1(4): 1012 (1-7), 2020

Article Link (Online Journal): https://www.nipponpub.com/wp-content/uploads/2020/07/NJES-1012.pdf

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Seed treatment and five times soil drenching at an interval of 7 days from seedling stage with Provax 200 WP (Carboxin + Thiram) @0.25% and Autostin 50 WDG (Carbendazim) @0.25% were found significantly individually reduced foot and root rot disease and increased seed yield of fennel. Therefore, farmers and researchers may use Provax 200 WP (0.25%) or Autostin 50 WDG (0.25%) to decrease foot and root rot disease and increase seed yield of fennel.

Knowledge Management: Journal