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Kerala Agricultural University, Thrissur

The history of agricultural education in Kerala can be traced back to the year 1896 when a scheme was evolved in the erstwhile Travancore State to train a few young men in scientific agriculture at the Demonstration Farm, Karamana, Thiruvananthapuram, presently, the Cropping Systems Research Centre under Kerala Agricultural University. Agriculture was introduced as an optional subject in the middle school classes in the State in 1922 when an Agricultural Middle School was started at Aluva, Ernakulam District. The popularity and usefulness of this school led to the starting of similar institutions at Kottarakkara and Konni in 1928 and 1931 respectively. Agriculture was later introduced as an optional subject for Intermediate Course in 1953. In 1955, the erstwhile Government of Travancore-Cochin started the Agricultural College and Research Institute at Vellayani, Thiruvananthapuram and the College of Veterinary and Animal Sciences at Mannuthy, Thrissur for imparting higher education in agricultural and veterinary sciences, respectively. These institutions were brought under the direct administrative control of the Department of Agriculture and the Department of Animal Husbandry, respectively. With the formation of Kerala State in 1956, these two colleges were affiliated to the University of Kerala. The post-graduate programmes leading to M.Sc. (Ag), M.V.Sc. and Ph.D. degrees were started in 1961, 1962 and 1965 respectively. On the recommendation of the Second National Education Commission (1964-66) headed by Dr. D.S. Kothari, the then Chairman of the University Grants Commission, one Agricultural University in each State was established. The State Agricultural Universities (SAUs) were established in India as an integral part of the National Agricultural Research System to give the much needed impetus to Agriculture Education and Research in the Country. As a result the Kerala Agricultural University (KAU) was established on 24th February 1971 by virtue of the Act 33 of 1971 and started functioning on 1st February 1972. The Kerala Agricultural University is the 15th in the series of the SAUs. In accordance with the provisions of KAU Act of 1971, the Agricultural College and Research Institute at Vellayani, and the College of Veterinary and Animal Sciences, Mannuthy, were brought under the Kerala Agricultural University. In addition, twenty one agricultural and animal husbandry research stations were also transferred to the KAU for taking up research and extension programmes on various crops, animals, birds, etc. During 2011, Kerala Agricultural University was trifurcated into Kerala Veterinary and Animal Sciences University (KVASU), Kerala University of Fisheries and Ocean Studies (KUFOS) and Kerala Agricultural University (KAU). Now the University has seven colleges (four Agriculture, one Agricultural Engineering, one Forestry, one Co-operation Banking & Management), six RARSs, seven KVKs, 15 Research Stations and 16 Research and Extension Units under the faculties of Agriculture, Agricultural Engineering and Forestry. In addition, one Academy on Climate Change Adaptation and one Institute of Agricultural Technology offering M.Sc. (Integrated) Climate Change Adaptation and Diploma in Agricultural Sciences respectively are also functioning in Kerala Agricultural University.

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Subject: Plant Pathology × Author: KAU × Author: Vimi, Louis × End date: 1994 × Start date: 1994 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of selected medicinal plant extracts on the incidence of pumkin mosaic
    (Department of Plant Pathology, College of Horticulture, Vellanikkara, 1994) Vimi, Louis; KAU; Balakrishnan, S
    The inhibitory effect of certain medicinal plant extracts on the incidence of pumpkin mosaic was studied using ten day old pumpkin seedlings as the test host. Preliminary screening of 30 species of medicinal plant extracts against pumpkin mosaic virus (PMV) revealed that eight plants possessed 80 or more percent inhibition of the infection. Of these five plants, namely, Basella alba, Glycyrrhiza glabra, Phyllanthus fraternus, Plumbago rosea and Thespesia populnea which showed very high virus inhibitory property were subjected to detailed studies. When the selected medicinal plant extracts were tested at five and ten per cent concentrations, two plants, B. alba and P. rosea showed more inhibition at lower concentration. P. fraternus and T. populnea were more effective at higher concentration. G. glabra showed equal effectiveness at both the concentrations. When the extracts of medicinal plants were mixed with partially purified virus preparation, B. alba, G. glabra and T. populnea showed more inhibition, than when used crude virus preparation. All the five medicinal plant extracts showed more inhibition by pre-inoculation application, than by post inoculation application. Pre – inoculation application of medicinal plant extracts at different time intervals revealed that inhibitory properties of B. alba and G. glabra decreased gradually, whereas, that of P. fraternus and T. populnea reached a maximum after a time gap. Inhibitory property of P. rosea did not show any gradual trend. Among the five selected medicinal plants, B. alba possessed a high degree of systemic effect (88.09%) followed by G. glabra (78.57%). The extracts of P. fraternus and P. rosea showed maximum reduction in percentage transmission of PMV by the vector (Aphis gossypii) when applied before acquisition and before inoculation feeding respectively. All the medicinal plant extracts showed more inhibition of infection in the case of mechanical transmission than in vector transmission. Spread of pumpkin mosaic in the field is not random and the data revealed that it is more or less concentrated around the initially infected plants.