Informatics Publishing Limited

Rajesh Kumar , Debu Moni Baruah , Ashwani Tapwal , R. K. Borah

Abstract

Verticillium dahliae was identified as a pathogen causing wilt disease of Polyalthia longifolia. It was isolated from the infected ischolar_mains of the seedlings collected from Central Forest Nursery of Imphal, Manipur, India. Four fungicides viz. Bavistin 50% WP, Dithane M-45, Dithane Z-78 and Fytolan 50% WP were screened against the pathogen at different concentrations using poison food technique in vitro and then in field-conditions using soil drenching technique. The results revealed that Bavistin 50% WP was most effective at 75 ppm with 100% growth inhibition followed by Dithane M-45, Dithane Z-78 and minimum efficacy was observed by Fytolan 50% WP with 31.27% growth inhibition in laboratory conditions. All selected fungicides were evaluated against pathogen in field conditions at 0.1% and 0.2 % concentrations. Bavistin 50% WP was found to be the most effective at 0.2% concentration. Thus the present study recommends soil drenching with Bavistin 50% WP at aminimal concentration of 0.2% for management of the disease.

Keywords

Verticillium dahliae, Wilt, Polyalthia Longifolia, Disease Management

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Ashwani Tapwal ¹, Shruti Kumari ², N. S. K. Harsh ²

Affiliations
1 Forest Pathology Division, Forest Research Institute, Dehradun, Uttarakhand-248 006, IN
2 Lovely Professional University, Phagwara, Punjab, IN

Abstract

In present study, the efficacy of Trichoderma harzianum and four isolates of Trichoderma longibrachiatum were evaluated in laboratory conditions for the management of Rhizoctonia solani. The results revealed that the selected Trichoderma species has restricted 10.6-48.8% mycelial growth in dual culture and 2.0-20.0% by volatile metabolites.

Keywords

Biocontrol, Rhizoctonia Solani, Trichoderma Harzianum And Trichoderma Longibrachiatum.

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Rajesh Kumar ¹, Ashwani Tapwal ¹, N. S. Bisht ¹, Shailesh Pandey ¹, Raja Rishi ¹

Affiliations
1 Rain Forest Research Institute, Jorhat, Assam, IN

Abstract

The natural occurrence of the edible basidiomycete, Pleurotus pulmonarius is reported for the first time in Nagaland state of India. The mushroom was collected on the dead logs from Puliebezie forest of Kohima. This mushroom is being consumed and sold in local market by the ethnic people of the area. Keeping in view the nutritional value and market demand, cultivation of this species was attempted on paddy straw and the analysis for protein, carbohydrate and fiber contents was also investigated for the cultivated fruit-bodies and results revealed the protein content 37.63%, fat 1.93%, carbohydrate 43.40% and the crude fiber content 4.12%.

Keywords

Pleurotus pulmonarius, Edible Mushroom, Nagaland, Mushroom Cultivation.

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