Inciting leaf blight
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Alternaria helianthi the causal agent of sunflower leaf blight was isolated from a monoconidial culture derived from blight infected sunflower leaves of MSFH-8.Alternariahelianthi was first cultured on PDA and then transferred to Potato Dextrose broth. Toxin was purified from the cultural filtrate by treatment with organic solvents. The identity of the toxin was established by estimating carbohydrate and protein content. Based on the quantity of carbohydrate and protein the toxin was identified as glycoproteinaceous in nature.
5p gaocaolon9 22-12-2020 15 2 Download
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The different fungicides were evaluated under in-vitro to know the effective fungicides at lower concentration against the Alternaria leaf blight pathogen.
8p trinhthamhodang1216 19-11-2020 8 1 Download
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Colletotrichum musae inciting margin leaf blight of banana was isolated using the infected samples showing typical symptoms. The changes in growth and sporulation of the obtained culture when exposed to different abiotic factors such as media, hydrogen ion concentration and light were recorded to check their influence on fungal development.
8p kethamoi7 26-08-2020 11 2 Download
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For this study, disease infected leaf samples were collected from pulse pathology block situated at Normon E. Borlaug Crop Research Centre, Pantnagar based on cultural, morphological and disease potential studies and then evaluated the pathogen against five botanicals viz. Calotropis, Ocimum, Aloevera, Neem and Bael at 5, 15, 25 and 35 per cent concentration through poison food technique and two bioagents viz.
10p nguaconbaynhay7 15-08-2020 31 1 Download
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Studies were undertaken to evaluate the plant extracts, fungicides and bio-agents against early blight disease of tomato caused by Alternaria solani under in vitro and vivo conditions. Among the four evaluated plant extracts against A. solani, neem leaf extract at 15% (w/v) was found to be most effective in inhibiting the mycelial growth of the pathogen with inhibition of 52.36 per cent, followed by combination of garlic clove and green chilli extract with the inhibition of 50.42 per cent.
7p angicungduoc6 22-07-2020 17 1 Download
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Banded Leaf and Sheath Blight (BLSB) disease caused by Rhizoctonia solani f. sp. sasakii Exner was studied in 22 inbred lines and 12 hybrids at the Regional Agricultural Research Station farm, Lam, Guntur, during rabi 2014-15 for evaluating resistance. Out of 22 inbred lines, PFSR9-2 had shown resistant reaction whereas PFSR6-1, PFSR6-2 and PFSR18 were found to be moderately resistant to BLSB disease.
10p angicungduoc5 14-06-2020 2 0 Download
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Anthracnose incited by Colletotrichum graminicola (Ces) Wils. is one of the most destructive and wide spread disease, causing yield losses of 21-70 per cent. The fungus C. graminicola cause anthracnose and leaf blight disease in sorghum. Sorghum plants affected with C. graminicola show small red coloured spots on both surface of leaf; the centre of the spot is white in colour encircled by red, purple or brown margins. Numerous small black dots are seen on the white surface of the lesions which are the fruiting bodies (acervuli) of the fungus.
5p nguathienthan5 04-06-2020 18 1 Download
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Maydis leaf blight is a serious foliar fungal disease of maize, may cause up to 41 per cent losses in grain yield. The present studies were undertaken to find out the stable sources of maydis leaf blight resistance. A set of one hundred and two maize inbred lines were evaluated against maydis leaf blight incited by Bipolaris maydis under artificial epiphytotic conditions at Regional Research Station, Karnal, CCSHAU during Kharif 2015 and 2016.
8p angicungduoc4 26-04-2020 5 1 Download
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c Sorghum [Sorghum bicolor (L.) Moench] belongs to family Poaceae. It is termed, as 'poor man's crop' as it performs well even in marginal lands under moisture stress conditions, low availability of fertilizers and other inputs as compared to other crops. The foliar pathogens are potential yield reducers, and may cause substantial yield losses when occur in epidemic form.
13p nguaconbaynhay4 22-03-2020 14 1 Download
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been reported, of these, 65 are known to occur in India (Saxena, 2002). Banded leaf and sheath blight (BLSB) of maize is one of the most widespread and destructive disease of maize in Southeast Asian countries. The disease was first described and reported from Sri Lanka (Bertus, 1927) as sclerotial disease of maize caused by Rhizoctonia solani Kuhn.
8p nguathienthan3 27-02-2020 29 1 Download
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Banded leaf and Sheath blight of maize caused by Rhizoctonia solani f.sp. Sasakii [teleomorph: Thanatephorus cucumeris] is of worldwide occurrence and is known to cause substantial yield losses. It is a major production constraint in high yielding varieties under intensive maize production systems. The pathogen has a very wide host range and exhibits considerable pathogenic and molecular variability. Due to non-availability of highly resistant cultivars, the management of banded leaf and sheath blight primarily relies on chemical control.
9p cothumenhmong3 22-02-2020 25 1 Download