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Chavan, A. A.
- Effect of Different Culture Media, Temperature, Ph, Carbon and Nitrogen Sourceson Mycelial Growth and Sporulation of Alternaria Carthami Causing Alternaria Blight of Safflower
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Affiliations
1 Department of Plant Pathology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Prabhani (M.S.), IN
1 Department of Plant Pathology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Prabhani (M.S.), IN
Source
International Journal of Plant Protection, Vol 7, No 2 (2014), Pagination: 349-353Abstract
Eight culture media, eight temperature levels, nine pH levels, seven carbon and six nitrogen sources tested exhibited better growth of Alternaria carthami. Results revealed that Potato dextrose agar gave significantly highest growth (90.00 mm), followed by Potato malt agar (84.16 mm) with excellent sporulation. Temperature levels indicated that highest mean mycelial growth (85.66 mm) was recorded at 30°C followed by 25°C (83.83 mm) and 20°C (66.33 mm). However, maximum mean mycelial growth (85.83 mm) was recorded at pH 6.5 with excellent sporulation, followed by at pH 6 (82.00 mm) and pH 7 (70.33 mm) with excellent and good sporulation, respectively. The carbon sources exhibited varied radial mycelial growth and sporulation of the test pathogen. However, highest radial mycelial growth (86.00 mm) and excellent sporulation was recorded on glucose, followed by on maltose (82.83 mm) and starch (80.33 mm) with excellent sporulation. Nitrogen sources resulted highest radial mycelial growth (82.55 mm) and excellent sporulation on potassium nitrate, followed by on peptone (75.83 mm) with good sporulation. Least radial mycelial growth (19.00 mm) was recorded on urea with poor sporulation.Keywords
Alternaria Carthami, Mycelial Growth, Carbon And Nitrogen Sources
- In Vitro Evaluation of Fungicides and Botanicals against Stem Rot of Chilli Caused by Sclerotium Rolfsii
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Authors
Amreen Begum
1,
M. S. Dadke
1,
S. S. Wagh
2,
D. P. Kuldhar
2,
D.V. Pawar
2,
A. A. Chavan
2,
D. S. Thaware
2
Affiliations
1 Department of Plant Pathology, College of Agriculture, Latur (M.S.), IN
2 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M. S.), IN
1 Department of Plant Pathology, College of Agriculture, Latur (M.S.), IN
2 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M. S.), IN
Source
International Journal of Plant Protection, Vol 7, No 2 (2014), Pagination: 437-440Abstract
Stem rot caused by Sclerotium rolfsii Sacc. has been observed to cause rapid mortality in chilli plantations. Among eight fungicides and eight botanicals tested in vitro against S. rolfsii, the result revealed that maximum (100%) inhibition was observed in carboxin, propiconazole, hexaconazole, difenconazole and carbendazim at all three concentrations viz., 500, 1000 and 1500 ppm followed by captan (79.30, 82.76 and 85.23%) and triadimenfon (49.13, 60.23 and 65.33%) over control. Minimum per cent of inhibition was observed in the plates poisoned with copper oxychloride (47.26, 51.63 and 54.40%), respectively at all three concentrations. Among botanicals, at 5 and 10 per cent concentrations, significantly highest average inhibition was recorded with neem (74.81%), followed by tulsi (67.10%) and nirgudi (65.81%). Significantly least average inhibition was recorded with sorghum (47.23 %). The rest of the botanicals recorded more than 50.00 per cent average inhibition of mycelial growth over untreated control (00.00%).Keywords
Chilli, S. Rolfsii, Stem Rot, in Vitro Evaluation, Fungicides, Botanicals- Nutritional and Physiological Studies of Fusarium oxysporum f. sp. Ciceri (Padwick) Snyder and Hansen Causing Wilt of Chickpea
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Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), IN
1 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), IN
Source
International Journal of Plant Sciences, Vol 11, No 2 (2016), Pagination: 213-217Abstract
Nutritional and physiological requirements of Fusarium oxysporum f. sp. ciceri were studied using most virulent isolate FOC-2 (Jalna). Effect of different culture media on mycelial growth of Fusarium oxysporum f. sp. ciceri showed significant differences in growth and sporulation. In vitro, culture media studied, Potato dextrose agar (89.66 mm) and Richard agar medium (85.66) produced significantly highest mean mycelial growth and sporulation. The temperature in the range of 25°C to 30°C and pH having range of 6.0 to 7.0 produce significantly highest mean mycelial growth and sporulation of the test pathogen.Keywords
Nutritional, Physiological, Chickpea.References
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- Exploration of Fungicides against Fusarium oxysporum f. sp. Ciceri (Padwick) Snyder and Hansen Causing Wilt of Chickpea
Abstract Views :236 |
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Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), IN
1 Department of Plant Pathology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), IN
Source
International Journal of Plant Sciences, Vol 11, No 2 (2016), Pagination: 255-261Abstract
Six systemic, six non-systemic and contact fungicides were evaluated, in vitro against Fusarium oxysporum f. sp. ciceri; however, the percentage mycelial growth inhibition was found to be increased with increase in concentrations of the test fungicides. All the systemic, non-systemic and contact fungicides tested, however, among the systemic fungicides, carbendazim, carboxin and benomyl and among non-systemic and contact fungicides, carbendazim + mancozeb, benomyl+ thiram and carbendazim + thiram were found inhibit the growth of the test pathogen completely .Keywords
Systemic Fungicides, Non-Systemic Fungicides, Contact Fungicides.References
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- Host Range of Pythium ultimum Infecting Tomato
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Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, Marathwada Agricultural University, Parbhani (M.S.), IN
1 Department of Plant Pathology, College of Agriculture, Marathwada Agricultural University, Parbhani (M.S.), IN
Source
Asian Journal of Bio Science, Vol 7, No 2 (2012), Pagination: 237-240Abstract
Tomato crop face the problem of pre-emergence damping off and post emergence damping off, reducing production of tomato crop. Damping off of seedlings in crop is caused by a group of fungi belonging to class oomycetes amongst which Pythium species are most important. There are two clear phases of the damping off i.e. pre-emergence and post-emergence.Keywords
Phythium ultimum, Host Plants, Seedling Mortality.- Varietal Screening Against Pythium ultimum Trow by Sick Soil Method in Heavy Black Cotton Soil
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Authors
Affiliations
1 Rajiv Gandhi Agriculture College, Parbhani (M.S.), IN
2 Department of Plant Pathology, Marathwada Agricultural University, Parbhani (M.S.), IN
1 Rajiv Gandhi Agriculture College, Parbhani (M.S.), IN
2 Department of Plant Pathology, Marathwada Agricultural University, Parbhani (M.S.), IN