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Poornima, K.
- Management of Rice Root Nematode, Hirschmanniella gracilis (de Man) Luc & Goodey with Pseudomonas fluorescens Migula
Abstract Views :232 |
PDF Views:112
Authors
Affiliations
1 Department of Nematology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, IN
1 Department of Nematology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, IN
Source
Journal of Biological Control, Vol 12, No 2 (1998), Pagination: 135-141Abstract
Field experiments were conducted with rice cvs. C043, DT36 and ADT 38 during Kuruvai (June-September); Samba (August- January), and Navarai (January-April) seasons, respectively, to evaluate the efficacy of plant growth promoting rhizobacterium, Pseudomonas fluorescens Migula strain Pf-1 available with Tamil Nadu Agricultural University, Coimbatore, as commercial formulation in the control of the rice ischolar_main nematode Hirschmanniella gracilis (de Man) Luc & Goodey. The biocontrol agent was evaluated as seed treatment and nursery soil application separately and either with or without soil application of carbofuran 3G and compared with soil application of carbofuran 3G @ 1.3 g a. i./m2 and an untreated control for the management of the nematode. Application of the biocontrol agent as seed treatment at a dosage of 10 g/kg of seed was superior to all the treatments. Maximum bacterial colonization and nematode suppression was observed in plants treated with P. fluorescens as seed treatment and it increased yield by 13 per cent.Keywords
Heterodera spp., Hirschmanniella gracilis, Meloidogyne incognita, Rice.- Free Radical Scavenging Activity of Tree Turmeric (Coscinium fenestratum)
Abstract Views :190 |
PDF Views:0
Authors
V. Suseela
1,
K. Poornima
1
Affiliations
1 Department of Biochemistry, Karpagam University, Coimbatore - 641 021, IN
1 Department of Biochemistry, Karpagam University, Coimbatore - 641 021, IN
Source
The Indian Journal of Nutrition and Dietetics, Vol 46, No 5 (2009), Pagination: 199-203Abstract
Coscinium fenestrafum Colebr. (menispermaceae), commonly known as tree turmeric, grows widely in the Western Ghats (India) and Sri Lanka, The plant has been mainly used for treating diabetes mellitus in the traditional Ayurvedic and Siddha systems of medicine.- Low Temperature Synthesis and Annealing effect of Transparent ZnO Thin Films on ITO Substrate by Sol-Gel Method
Abstract Views :135 |
PDF Views:0
Authors
Affiliations
1 Department of Electronics, S.N.R. Sons College, Coimbatore - 641006, Tamil Nadu, IN
2 Department of Physics, Government Arts College, Udhagamandalam - 643 002, Tamil Nadu, IN
1 Department of Electronics, S.N.R. Sons College, Coimbatore - 641006, Tamil Nadu, IN
2 Department of Physics, Government Arts College, Udhagamandalam - 643 002, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 22 (2016), Pagination:Abstract
Objectives: Transparent Zinc oxide (ZnO) thin films to be prepared and annealed on the Indium tin oxide - ITO substrate using simple solution gel dip coating technique. Methods/Analysis: Thin films have been carried out by different characterization techniques such as X-ray diffractometer - XRD, Scanning Electron Microscopy - SEM, Energy dispersive analysis - EDAX, UV spectroscopic and FTIR spectroscopy. In the contemporary work, the ZnO films have been prepared on ITO substrate by dipping in the solution and annealed at the 300 °C. Findings: XRD pattern reveals that the annealed thin film is standard wurtzite zinc oxide hexagonal structure. SEM Morphological studies have been investigated using scanning electron microscopy and the elemental analysis confirmed by EDAX. Optical measurement shows the greatly transparent and the thin films are direct energy gap Eg of 3.70eV. FTIR confirm the metal oxide bond in the molecular structure. Novelty/Improvement: This research work helps for the future researcher’s preparation of undoped Zinc oxide thin film for solar cell applications.Keywords
ITO Substrate, Sol-Gel Method, ZnO Thin Film- Screening of Banana Hybrids for Resistance to Pratylenchus coffeae
Abstract Views :201 |
PDF Views:102
Authors
Affiliations
1 Department of Fruit Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, IN
2 International Network for the Improvement of Banana and Plantain - Asia and the Pacific, c/o IRRI Khush Hall, Los Banos, Laguna 4031, PH
3 Laboratory of Tropical Crop Improvement, Catholic University Leuven (K.U. Leuven), Kasteelpark, Arenberg 13, 3001 Leuven, BE
1 Department of Fruit Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, IN
2 International Network for the Improvement of Banana and Plantain - Asia and the Pacific, c/o IRRI Khush Hall, Los Banos, Laguna 4031, PH
3 Laboratory of Tropical Crop Improvement, Catholic University Leuven (K.U. Leuven), Kasteelpark, Arenberg 13, 3001 Leuven, BE
Source
Journal of Horticultural Sciences, Vol 3, No 1 (2008), Pagination: 57-61Abstract
The reaction of twenty-four new synthetic banana hybrids to Pratylenchus coffeae was studied under artificially inoculated pot conditions. Two banana hybrids, H-04-05 and H-04-06 were found to be resistant and ten hybrids, H-04-01, H-04-03, H-04-04, H-04-07, H-04-09, H-04-11, H-04-16, H-04-19, H-04-21 and H-04-24 were found to be tolerant to the lesion nematode, Pratylenchus coffeae and the remaining were rated as susceptible.Keywords
Resistance, Banana, Hybrids, Pratylenchus coffeae.- Horticultural Nurseries and Nematode Dissemination
Abstract Views :293 |
PDF Views:96
Authors
K. Poornima
1,
R. K. Walia
2
Affiliations
1 Department of Nematology, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 ICAR-All India Coordinated Research Project (Nematodes), New Delhi 110 012, IN
1 Department of Nematology, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 ICAR-All India Coordinated Research Project (Nematodes), New Delhi 110 012, IN
Source
Current Science, Vol 120, No 2 (2021), Pagination: 278-284Abstract
Horticultural nurseries are often contaminated with nematodes, especially the ischolar_main-knot nematode, Meloidogyne spp. Nematodes are concealed in the ischolar_mains of planting materials (plantlets in polybags). Due to unawareness about nematode infection in planting materials among nurserymen, growers and horticulture field staff, the nematodes have spread across India. The infected plants often do not grow well and slowly succumb to nematode infection on ischolar_mains that is accentuated due to secondary attack by fungal (Fusarium spp.) pathogens. Recently, this problem has cropped up in a big way in guava plantations across the country and a suspected exotic species, Meloidogyne enterolobii (the guava ischolar_main-knot nematode) has been intercepted in 11 states. Methods to contain nematode infection in nurseries and prevent further spread through planting material are suggested in this study.Keywords
Horticultural Nurseries, Dissemination, Guava, Planting Materials, Root-Knot Nematode.References
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- Ashokkumar, N. and Poornima, K., Occurrence and distribution of ischolar_main knot nematode, Meloidogyne enterolobiiin guava (Psidium guajava L.) in Tamil Nadu. J. Pharmacogn. Phytochem., 2019, 8, 1922–1924.
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- Poornima, K. and Walia, R. K., Orchardists and nurserymen: beware of nematodes. All India Coordinated Research Project on Nematodes in Cropping Systems, ICAR, IARI, New Delhi, 2017, p. 24.
- Ganeshan, K., Poornima, K., Renukadevi, P. and Nakkeeran, S., Synergistic effect of ischolar_main knot nematode, Meloidogyne enterolobii and Fusarium oxysporum in causing guava decline in Tamil Nadu. Pest Manage. Hortic. Ecosyst., 2019, 25, 252–256.
- Suresh, P., Poornima, K., Nakkeeran, S., Kalaiarasan, P. and Vijayakumar, R. M., Isolation and characterization of the causal organism of wilt in guava (Psidium guajava L.). J. Pharmacogn. Phytochem., 2019, 8, 1231–1235.
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- Ashokkumar, N., Poornima, K., Kalaiarasan, P. and Kavino, M., Screening and histological characterization of guava (Psidium guajava L.) cultivars against ischolar_main knot nematode, Meloidogyne enterolobii. Pest Manage. Hortic. Ecosyst., 2019, 25, 84–92.