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Kumbhar, C. T.
- Efficacy of Triazole Fungicides in Controlling Fruit Rot of Chilli
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Authors
C. T. Kumbhar
1,
S. M. More
2
Affiliations
1 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S.
2 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S., IN
1 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S.
2 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S., IN
Source
International Journal of Plant Protection, Vol 6, No 2 (2013), Pagination: 257-261Abstract
Field experiments were conducted for three consecutive Kharif seasons of 2009, 2010 and 2011 at the experimental farm of Zonal Agricultural Research Station (Sub-montane Zone), Shenda Park, Kolhapur, to study the efficacy of five fungicides of triazole group viz., tebuconazole 25.9% EC, difenconazole 25% EC, hexaconazole 5% SC, tricyclazole 75% WP and propiconazole 25% EC against fruit rot disease of chilli caused by Colletotrichum capsici. Performance of these triazole fungicides was compared with mancozeb 75% WP, propineb 70% WP, copper oxychloride 50% WP and carbendazim 50 WP. Fungicide, tebuconazole appeared the most effective amongst the fungicides tested, with reduction in fruit rot incidence and intensity to the tune of 69.96% and 73.56%, respectively over unsprayed control, followed immediately with similar efficacy by other two triazoles viz., difenconazole and hexaconazole. Highest dry fruit yield of 25.91 q ha-1 was recorded in the plots sprayed with tebuconazole and was at par with that obtained in difenconazole, hexaconazole, tricyclazole, propineb and mancozeb sprayed plots. Although, the maximum increase in yield was obtained by spraying tebuconazole, the maximum benefit:cost ratio was obtained with hexaconazole. It means that tebuconazole though increases the yield, the cost of fungicide could not be yet met out with the increased yield. Conclusively, the present investigation reveals that four sprayings of fungicide, hexaconazole 5% SC at the concentration of 0.1%, first in the early fruiting stage and subsequent three sprays at 14 days' interval, are most effective and economical for controlling fruit rot disease of chilli under Maharashtra conditions.Keywords
capsicum Annuum, colletotrichum Capsici, Fruit Rot of Chilli, Triazole Fungicides
- Studies on Weed Fungi Encountered in the Cultivation of Pleurotus eous (Berk.) Sacc.
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Authors
Affiliations
1 Department of Plant Pathology, Zonal Agricultural Research Station (sub-montane Zone), Kolhapur, M.S., IN
1 Department of Plant Pathology, Zonal Agricultural Research Station (sub-montane Zone), Kolhapur, M.S., IN
Source
International Journal of Plant Sciences, Vol 8, No 2 (2013), Pagination: 270-275Abstract
A sum of 6 fungal species belonging to 6 different genera was found associated with the contaminated beds of Pleurotus eous. These were: Aspergillus niger, Alternaria alternata, Fusarium semitectum, Rhizopus sp., Sclerotium rolfsii and Trichoderma viride. Formaldehyde at the concentrations of 1, 2 and 4 per cent caused cent-per-cent inhibition of Pleurotus eous and S. rolfsii even after 12 hours of exposure period. Fungicide bavistin at the concentrations of 25, 50, 75 and 100 ppm exerted total inhibitory effect on all the contaminants. However, all the fungicides tested in the investigation viz., captan, bavistin and kavach were toxic to Pleurotus eous even at the lowest concentration of 25 ppm. There was no antagonistic reaction between Pleurotus eous and various weed fungi viz., A. niger, A. alternata, F. semitectum, Rhizopus sp., S. rolfsii and T. viride.Keywords
Pleurotus Eous, Contaminants,weed Fungi- Response of Finger Millet (Eleusine coracana L.) Cultivated on Steep Hill Slopes to Foliar Nutrition
Abstract Views :268 |
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Authors
Affiliations
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
Source
International Journal of Plant Sciences, Vol 13, No 1 (2018), Pagination: 183-187Abstract
Field experiments were conducted at Zonal Agricultural Research Station, Shenda Park Farm, Kolhapur on Entisol, Sub-montane Zone of Maharashtra during the Kharif seasons of 2014 to 2016 to study the response of finger millet crop to foliar nutrition of nitrogen, phosphorus and potassium. The finger millet was transplanted and fertilized by basal general recommended dose of fertilizer (45 kg N: 22.5 kg P2O5: 00 kg K2O through briquettes) + FYM @ 5 t ha-1. Foliar spray was applied at 50 days after transplanting. The fertilizers used for spray were urea, di-ammonium phosphate, muriate of potash, complex 19-19-19 and calcium nitrate applied @ 2 % foliar spray while combination treatment of urea, di-ammonium phosphate and muriate of potash @ 0.5 % each was applied to the experimental plots.The findings of the field experiments revealed that the application of foliar spray increased the yields of finger millet crop. The highest yield was recorded by the treatment foliar spray of 19-19-19 @ 2% (22.68 q ha-1) over the recommended dose of fertilizer (17.75 q ha-1). It was followed by the treatment urea spray applied @ 2 % (20.86 q ha-1), DAP @ 2.0 % (19.85 q ha-1) and at par with rest of the treatments on foliar nutrition while it was superior over water spray (17.94 q ha-1). The similar trend was observed by straw yield of finger millet crop to that of grain yield. The data on plant uptake revealed that the treatment of foliar spray 19-19-19 @ 2% recorded higher uptake of N, P and K as compared to no foliar spray application. The application of foliar spray 19-19-19 @ 2% recorded significantly highest B:C ratio (1.46). The soil analyses after harvest of the crop revealed that the nitrogen, phosphorus and potassium contents in the soil after harvest of the crop did not differ amongst the different treatments.Keywords
Foliar, Finger Millet, Nutrient, Rice, Yield.References
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- Malinda, S. Thilakarathna and Raizada, Manish N. (2015). A review of nutrient management studies involving finger millet in the semi-arid tropics of Asia and Africa Agron., 5 : 262-290.
- Oosterhuis, D. (2009). Foliar fertilization: mechanisms and magnitude of nutrient uptake. Proceedings of the fluid forum (pp. 15-17).
- Rao, B.K.R., Krishnappa, K., Srinivasarao, C., Wani, S.P., Sahrawat, K.L. and Pardhasaradhi, G. (2012). Alleviation of multinutrient deficiency for productivity enhancement of rain-fed soybean and finger millet in the semi-arid region of India.Commun. Soil Sci. Plant Anal., 43 : 1427–1435.
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- Environmentally Benign Management of Bacterial Wilt of Brinjal Incited by Ralstonia solanacearum (Smith)
Abstract Views :189 |
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Authors
Affiliations
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 30-34Abstract
A field experiment was conducted to study the effect of Pseudomonas fluorescens on wilt disease of brinjal incited by Ralstonia solanacearum, during three consecutive Kharif seasons of 2010, 2011 and 2012 at the experimental farm of Zonal Agricultural Research Station, Sub-montane Zone, Kolhapur (Maharashtra) India. Pooled data of the three years revealed that the wilting was reduced remarkably in the plots, where the plants were drenched with copper oxychloride 40 g + streptocycline 2 g (per 10 L water). This treatment gave outstanding disease control and was the best amongst all the treatments tried, in reducing wilt incidence by 62.77 per cent and yield increase by 71.93 per cent compared to untreated control. However, maximum benefit-cost (B: C) ratio of 3.11 was recorded in the treatment wherein P. fluorescens was inoculated to seed + seedling ischolar_mains + soil. Consequently, on the basis of relative efficacy of P. fluorescens in terms of degree of disease control, additional yield, net profit per hectare and benefit: cost ratio, seed treatment with talc based culture of P. fluorescens @ 10 g kg-1 seed before sowing and seedling ischolar_main dip (2.5 kg of talc based formulation of P. fluorescens in 40 L water) as well as soil application (2.5 kg of talc based formulation of P. fluorescens mixed in 50 kg of FYM acre-1 soil), at the time of transplanting may be recommended to farmers for management of bacterial wilt of brinjal and thereby gaining higher fruit yield.Keywords
Bacterial Wilt, Ralstonia solanacearum, Pseudomonas fluorescens.References
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- Wydra, K. and Semrau, J. (2005). Phenotypic and molecular characterization of the interaction of antagonistic bacteria with Ralstonia solanacearum causing tomato bacterial wilt. In: Zeller W., Ulrich C. (eds). 1st International Symposium on Biological Control of Bacterial Plant Diseases, pp. 112-118, Darmstadt, Germany.
- Effect of Pseudomonas fluorescens and Trichoderma spp. on Growth, Yield and Stem Rot Disease of Groundnut
Abstract Views :287 |
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Authors
R. B. Dhage
1,
C. T. Kumbhar
1
Affiliations
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
Source
Asian Journal of Bio Science, Vol 13, No 1 (2018), Pagination: 10-15Abstract
Effect of Pseudomonas fluorescens and Trichoderma spp. on stem rot of groundnut incited by Sclerotium rolfsii was evaluated in a field experiment conducted during Kharif, 2014-15.Combined seed treatment with tebuconazole, P. fluorescens and Trichoderma spp. in conjunction with application of P. fluorescens and Trichoderma spp. to soil and, the treatment in which both, P. fluorescens and Trichoderma spp were altogether inoculated to seed and soil significantly reduced the intensity and incidence of stem rot disease in groundnut. These two treatments also augmented seed germination, shoot length, branching, dry plant weight and dry pod yield significantly.Keywords
Pseudomonas fluorescens, Trichoderma spp., Sclerotium rolfsii, Stem Rot of Groundnut.References
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