Thumbnail Image

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.

Browse

20211
Reset filters
Subject: Plant Biotechnology × Author: Anie, Thomas × Author: KAU × Start date: 2021 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Impact of water stress on sucrose metabolism in rice (oryza sativa L.)
    (Department of Plant Biotechnology, College of Agriculture, Vellayani, 2021) Anie, Thomas; KAU; Beena, R
    The study entitled “Impact of water stress on sucrose metabolism in rice (Oryza sativa L.)” conducted at Department of Plant Biotechnology and Department of Plant Physiology, College of Agriculture, Vellayani during 2020-21. The objective was to study the impact of water stress on sucrose metabolism by analyzing the physiological and biochemical parameters and gene expression in selective drought tolerant and susceptible rice genotypes. In this study, two rice varieties, drought tolerant variety, PTB 7 (Parambuvattan) and drought susceptible, PTB 23 (Cheriya Aryan) were grown in pot culture and after the panicle initiation stage, crops were subjected to water stress by withdrawing irrigation until the plants experienced the symptoms of stress (leaf rolling). Then the various physiological parameters were studied five days after the induction of water stress. Extraction and estimation of sucrose metabolizing enzymes such as invertase, α- and β-amylase were done five days after induction of stress spectrophotometrically. Expression levels of sucrose synthase (SuSy) and sucrose transporter gene (SUC2) were analyzed from both root and leaf seven days after induction of water stress. Under water stress, physiological parameters such as cell membrane stability index, relative water content and yield trait like number of productive tillers were significantly reduced, activity of enzymes such as invertase, α- and β-amylase were increased and gene expression level of sucrose synthase (SuSy) and sucrose transporter (SUC-2), which are associated with the sucrose metabolism were upregulated. Water stress enhanced the sucrose content and reducing sugar content in rice plant. There was significant increase in root traits in PTB 7 but they were reduced in PTB 23. Also, there was a reduction in shoot biomass than the root biomass in tolerant rice variety, which leads to an increase in root to shoot (R/S) ratio. In this study, sucrose metabolism and transport were increased in both drought tolerant and susceptible variety under water stress condition. However, PTB 7 (drought tolerant) showed an improved sucrose metabolism than PTB 23 (drought susceptible) during water stress condition.