International Journal of Plant Protection

Ashish Shrivastava ¹

Affiliations
1 Department of Plant Pathology, J.N. Krishi VishwaVidyalaya, College of Agriculture, Ganj Basoda,Vidisha M.P., IN

Abstract

Field survey was undertaken and seventy one samples of chickpea wilted plants were collected from twenty three locations in different districts namely, Bhopal, Raisen, Rajgarh, Sagar, Sehore and Vidisha of Vindhyan Plateau Zone of Madhya Pradesh. Out of seventy one isolates, only twenty were found pathogenic to chickpea. These isolates were categorized into six different groups on the basis of colony diameter, growth pattern and number of micro and macro conidia. The physiological studies of the representative isolates of these six groups were made on six different fungicides at 1000 ppm concentration. All the fungicides differed significantly from each other. The minimum mean radial growth (39.68 mm) was recorded in groups 5 of isolates Ri4, Ri5 and V2 and maximum (41.04 mm) in group one consisting of B2, B3, Se 6 and Se 8. The maximum mean radial growth (84.46 mm) was obtained on untreated control and minimum (15.36 mm) on Thiram. These isolates exhibited three types of growth pattern namely, fluffy partially submerged and submerged. The maximum number of micro conidia were produced on untreated (control) (7.58 million/ml) and minimum (1.29 million/ml) on Thiram. Similarly, the maximum number of macro conidia were produced on untreated control (2.67milion/ml) and minimum (0.19 million/ml) on Thiram.

Keywords

Variability, Chickpea Wilt, Fungicides

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Ashish Shrivastava ¹, Vijay Agrawal ²

Affiliations
1 Department of Plant Patholgy, College of Agriculture, (J.N.K.V.V.), Ganj Basoda, Vidisha M.P., IN
2 Department of Plant Patholgy, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur M.P., IN

Abstract

Field survey was undertaken and Seventy one samples of chickpea wilted plants were collected from twenty three locations in different districts namely Bhopal, Raisen, Rajgarh, Sagar, Sehore and Vidisha of Vindhyan Plateau Zone of Madhya Pradesh. Out of Seventy one isolates, only twenty were found pathogenic to chickpea. These isolates were categorized into six different groups on the basis of mycelia dry weight, growth pattern and the number of micro and macro conidia. The physiological studies of the representative isolates of these six groups were made on six liquid media. All the media differed significantly from each other. The minimum mean mycelia dry weight (66.19 mg) was recorded in groups five of isolates Ri4, Ri5 and V2 and maximum (73.16 mg)in group one consisting of B2, B3,Se6 and Se8. The maximum mean mycelia dry weight (79.00 mg) was obtained on Potato dextrose broth (PDB) and minimum (60.70 mg) on Richard solution. These isolates were exhibited three types of growth pattern namely fluffy, partially submerged and submerged. The maximum numbers of micro conidia were produced on PDB (6.64 million/ml) and minimum (3.42million/ml) on Elliot's Solution. Similarly, the maximum numbers of macro conidia were produced on PDB (2.48 million/ml) and minimum (o.73 million/ml) on Houston's solution. Chickpea (Cicer arietinum Fusarium oxysporum f.sp. ciceri is much dangerous than other diseases Singh et al. (1973). The incidence of the disease varies from 10-100 per cent depending on the locality.

Keywords

Fusarium Oxysporum, Vascular Wilt, Chickpea, Liquid Media

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Mukesh Kumar Bankoliya ¹, Sarvesh Kumar ¹, Ashish Shrivastava ²

Affiliations
1 Krishi Vigyan Kendra (J.N.K.V.V.), Harda (M.P.), IN
2 Department of Plant Pathology, College of Agriculture (J.N.K.V.V.), Ganjbasoda(M.P.), IN

Abstract

Effect of intercropping on the incidence of foot and collar rot disease in soybean. 9 crops, there each among the cereals, pulses, and oilseeds as intercrops along with soybean as a sole crop to see their effect on incidence of the disease. Diseased soybean plants exhibiting typical symptoms of foot and collar rot were collected from the field research experiment at the site and samples were placed in a clean bel jar at room temperature (22-28°C) in the laboratory. The diseased specimens were examined in the laboratory. The influence of ischolar_main exudates from these crops was studied on the biology of pathogen and its known antagonist Trichoderma harizanum in vitro. The incidence of foot and collar rot in soybean was greatly reduced by employing intercrops such as maize, sorghum and pearl millet.

Keywords

Foot and Collar Rot Disease, Intercropping, Soybean.

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