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Paper Title |
Abstract |
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| 1 |
PHYTOCHEMICAL ANALYSIS AND ANTICANCEROUS ACTIVITY OF SELECTED MEDICINAL PLANTS
Author(s):
Jose John , Aswathy Anna Jose.
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1-13 |
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PHYTOCHEMICAL ANALYSIS AND ANTICANCEROUS ACTIVITY OF SELECTED MEDICINAL PLANTS
Abstract
Detection of phytoconstituents in plants makes the primary step in drug evaluation. In the present study, preliminary phytochemical studies were conducted on the Andrographis paniculata, Nees., Centella asiatica, L. and Murraya koenigii, L.. Extracts were prepared in ethanol, methanol and distilled water using powdered leaves. For the detection of primary and secondary metabolites preliminary qualitative phytochemical tests were conducted based on standard procedures described by Harbourn. Among the three constituents selected for study, carbohydrate was the major primary metabolite. Alkaloids, tannins and phenols were also present in all. As the present study is qualitative analysis, it helped in detection of various phytoconstituents in the selected plants under study. Anticancerous activity of Andrographis paniculata, Nees., Centella asiatica, L. and Murraya koenigii,L. were studied and showed positive results.
| 2 |
Effect of different carbon and nitrogen sources on the vegetative growth of Shiitake mushroom ( Lentinula edodes (Berk.) Pegler).
Author(s):
Deepa Rani C. V , Dr. Lulu Das .
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14-19 |
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Effect of different carbon and nitrogen sources on the vegetative growth of Shiitake mushroom ( Lentinula edodes (Berk.) Pegler).
Abstract
Study was conducted to optimize the effect of different carbon and nitrogen sources for the vegetative growth of Lentinula edodes in both solid and liquid media. Out of six different carbon sources viz. sucrose, lactose, galactose, fructose, dextrose and mannitol tested, fastest growth was obtained with dextrose as carbon source in solid media. In the broth, mannitol supported maximum mycelial dry weight of Lentinula edodes. Peptone when used as nitrogen source gave best result in solid media. Maximum mycelial dry weight was obtained in liquid media when ammonium nitrate was used as nutrient source.
| 3 |
SOCIO – ECONOMIC STATUS OF FARMERS REARING NATIVE BREEDER CHICKEN INTENSIVELY IN WESTERN TAMIL NADU
Author(s):
P. Balamurugan , S. Ezhil Valavan , R. Asha Rajini , N. K. Sudeep Kumar , A. Sundaresan , A. Serma Saravana Pandian.
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20-25 |
pdf |
SOCIO – ECONOMIC STATUS OF FARMERS REARING NATIVE BREEDER CHICKEN INTENSIVELY IN WESTERN TAMIL NADU
Abstract
The present study was conducted to analyze the socio-economic status of farmers rearing native breeder chicken under intensive management system in Western district of Tamil Nadu viz, Erode, Tirupur and Coimbatore. A total of 45 farms, 15 farms in each district were selected by simple random sampling and the data were collected through a semi-structured interview schedule. The selected farms were classified as small (up to 1500), medium (1501 - 3000) and large (more than 3000) with the average farm capacity of 600, 2271 and 5017 birds respectively. The result of the study showed majority of farmers rearing native breeder chicken were graduates, middle (36 to 45 years) aged males who owned the farms and the involvement of women appeared to be consistently low. Native breeder chicken farmers had more than two hectare of lands, low level of experience (less than five years) and used their own lands for native breeder chicken farming in Western district of Tamil Nadu. Native breeder farmers started their practice to earn main income from the native breeder farm and majority of the farmers were not participated any training program.
Key words: Native breeder chicken, intensive rearing, socio-economics
| 4 |
A review on agronomical aspects of potato production in north-eastern region of India
Author(s):
Sanjay Kumar Yadav , A. K. Srivastava.
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26-34 |
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A review on agronomical aspects of potato production in north-eastern region of India
Abstract
Besides more cropping intensity, per capita consumption of potato in the north eastern region is also four times higher than national average. In contrast to requirement, productivity of the same region is almost half of the country which highlights the significance of the crop. The climatic condition of hilly regions belong to the part of Eastern Himalaya of the country is quite suitable for growing more than one crop of potato throughout the year by selecting altitudinal variation. Hence, improving potato productivity is a key importance for farming community of north-eastern region. Efforts have been made to bring to light the previous research in this region and formulating future strategies to reduce the gap between potential and actual yield of potato crop in the land lock region of country. Further, the detection of the limiting factors that could be manipulated to increase productivity of potato is the major goal of such review. An overall examination of the climatic condition, soil fertility, quality seed, method of planting, integrated nutrient management, biofertilizers, potato based cropping system, scope of organic farming, weed management and plant protection measures are presented in this review.
| 5 |
Symptomatology, transmission and molecular detection of phytoplasma infecting Brinjal (Solanum melongena L.)
Author(s):
Saranya S. S , Dr. K. Umamaheswaran .
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35-40 |
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Symptomatology, transmission and molecular detection of phytoplasma infecting Brinjal (Solanum melongena L.)
Abstract
Brinjal or eggplant (Solanum melongena L.) is an important and widely consumed indigenous vegetable crop of India grown round the year. Among the diseases, Brinjal Little leaf (BLL) is one of the most important economic diseases caused by phytoplasma, belonging to the class mollicutes, under which wall less prokaryotic organisms are grouped. The diseased plants showed characteristic symptoms including little, narrow, soft, glabrous and smooth leaves produced as clusters, phyllody, proliferation of axillary shoots along with shortened internodes, stunted growth etc. Graft inoculation was 100% successful and initial symptoms were noticed in the new sprouts of the rootstock 7-10 days after the graft transmission. The molecular detection was done through PCR and it produced an amplification of ~1.8 kb with the primer P1/P7.
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Biochemical basis of resistance in papaya genotypes systemically infected with Papaya ringspot virus
Author(s):
Krishnapriya, P. J , Umamaheswaran, K. , Harikrishnan P.J.
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41-46 |
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Biochemical basis of resistance in papaya genotypes systemically infected with Papaya ringspot virus
Abstract
Papaya ringspot disease caused by Papaya ringspot virus (PRSV) has been identified as a serious threat to papaya in Indian subcontinent. Symptoms of disease include mosaic, shoestring and ringspot symptoms on leaves. Fruits also become disfigured with ringspot symptoms. However little is known about the plant virus interaction. In the present investigation, phenol, total soluble protein content, activities of defense related enzymes like peroxidase, polyphenol oxidase and phenylalanine ammonia-lyase were quantitatively estimated in the leaves of resistant (Pusa Nanha) and highly susceptible (local cultivar) genotypes of papaya (Carica papaya L.). The results revealed a significant increase in amount of phenol, protein and defense related enzymes in inoculated plants of resistant genotype, indicating their positive correlation with disease resistance, thus this can be considered as a biochemical marker for studying host pathogen interactions.
| 7 |
Biofumigation: Success and Prospects in Soilborne Plant Disease Management
Author(s):
Dr. Pramod Prasad , Dr. J. Kumar , Dr. Shailesh Pandey.
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47-59 |
pdf |
Biofumigation: Success and Prospects in Soilborne Plant Disease Management
Abstract
Over the last decade the phasing-out of methyl bromide has brought out the need for alternative strategies for the management of soilborne pests and diseases in to sharp focus. Among the different alternative control methods being touted to replace methyl bromide are the use of other fumigant-like pesticides such as the methyl isothiocyanate generator metam sodium, 1,3-dichloropropene (1,3-D), chloropicrin, or mixtures of these, and various biologically-based options. The attention for bioactive natural molecules has been strongly augmented because public opinion considers them as a mild, safe and reliable option to prevent or to fight several human, animal and plant diseases. Among several bioactive molecules, glucosinolates (GSLs) from Brassicaceae and their enzymatic degradation products especially isothiocyanates (ITCs) via myrosinase as biofumigant stands out as a promising alternative for the management of a variety of pests including weeds, insects and plant pathogens as reported through several researches. However, there are issues such as dose validation, response of other beneficial microbes in the soil to these molecules, etc. which needs to be further addressed
