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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Open Access
Genetic studies in red gram (eafanui caiaixL)
(Department of Agricultural Botany, College of Horticulture, Vellanikkara, 1988) Radhakrishnan, V V; KAU; Narayanan Namboodiri, K N
Open Access
Studies on induced mutations in rice (Oryza sativa L.)
(Division of genetics and plant breeding ,Agricultural college and research institute , Coimbatore., 1971) Gopinathan Nair, V; KAU
Open Access
Effect of planting date, weight of rhizome and spacing on the growth, yield and quality constituents on turmeric (Curcuma longa L)
(Department of Horticulture (Plantation Crops & Spices), College of Horticulture, Vellanikkara, 1983) Chatterjee, R K; KAU; Mohanakumaran, N
Open Access
Genetic variability, path analysis and stability parameters in sesame
(Department of Plant Breeding, College of Agriculture, Vellayani, 1985) Sverup, John; KAU; Gopinathan Nair, V
Biometric analysis in a varietal collection of sesame was undertaken to study the genetic variability, correlations, path analysis and stability parameters. One hundred sesame types were evaluated in replicated trials at Vellayani in uplands during rabi and at Kayamkulam in rice fallows during summer. Genetic variability and correlations were estimated and path analysis worked out independently as both the locations. Location trials for estimating stability parameters were conducted at three places viz. in uplands during rabi at Pattambi and Vellayani and in rice fallows during summer at Kayamkulam. Large values for genotypic coefficients of variation were obtained for characters such as number of capsules on branches, number of capsules perplant, number of capsules on main stem and number of branches during rabi as well as summer. The lowest genotypic coefficient of variation was obtained for number of days to maturity during both rabi and summer. High values of heritability were recorded by seed protein content , seed oil content, height upto first capsule and weight of 1000 seeds under both conditions.
Open Access
Studies on the burrowing nematode radopholus similis (cobb,1893) thorne 1949 on pepper(Piper nigrum L.) and its role in slow wilt disease
(Department of plant pathology, University of agricultural sciences, Bangalore, 1976) Venkitesan, T S; Setty, K G H
Open Access
Trematodes of Paramphistomatidae Infecting Domestic Ruminants
(Department of Parasitology, College of Veterinary and Animal Sciences, 1987) Tarun Shankar, Nath; KAU; George Varghese, C
The thesis embodied the results of an investigation on the prevalence of amphistome infection and their specific identity in different domestic ruminants (cattle, buffaloes, sheep and goats) of Kerala state. A total of 1490 faecal samples from domestic ruminants were collected from different places of Kerala State during a period from April 1985 to March 1986. These samples were examined by sedimentation technique to detect infection with amphistomes and their prevalence. Viscera of 780 slaughtered/ dead ruminants from different parts of Kerala were examined in addition and the available amphistomes were collected for the study and specific identification. The flukes were studied alive, flattened and stained and in certain cases by microtomy sections. Result of the study indicated that the prevalence of infection was far more in cattle and buffaloes than in sheep and goats. The rate of prevalence in cattle, buffaloes and goats was 20.16%, 28.57% and 3.22% respectively. In slaughtered/dead animals the prevalence was 33.09%, 34.67%, 4.17% and 5.81% respectively in cattle, buffaloes, sheep and goats. The highest prevalence was recorded during the rainy season and lowest in dry/summer season. Prevalence during south west monsoon was 38.08% and 20.73% during North East monsoon. The seasonal prevalence hardly varied between cattle and buffaloes but it was consistently low in sheep and goats. Most of the prevalence in all animals were of mixed origin. A total number of 17 species belonging to eight genera of amphistomes were identified. Cevlonocotyle spinicephalus (Tandon, 1955) was recorded from new hosts i.e, cattle and goats, cotylophoron chauhani from goats, in addition to the already reported hosts, buffaloes and sheep respectively. The following conclusions are drawn on the basis of the results of this study: Amphistomes are most prevalent in cattle and buffaloes. Though the infection with amphistomes exists throughout the year, it is definitely more in monsoon seasons. Ceylonocotyle spinicephalus (Tandon, 1955) occurs in cattle and goats and cotylophoron chauhani (Gupta and Gupta, 1972 ) in goats also.
Open Access
Economics of production and marketing of tuber crops in Palakkad district
(Department of Agricultural Economics, College of Horticulture, Vellanikkara, 1997) Sheena, P A; KAU; Thomas, E K
The present investigation on the economics of production and marketing of tuber crops viz. coleus, sweet potato and tapioca in Palakkad district was undertaken during the year 1994-95. The study focussed on estimation of cost and returns and marketing system. Data for the study was generated through a sample survey of farmers, village traders, wholesalers and retailers. Two stage sampling technique was adopted for the study, with panchayats selected purposively and sample farmers by random sampling method. The sample size for each crop was 50 making a total of 150 sample respondents. The results of the cost structure analysis revealed that the largest single item of expense was rental value of own land for coleus and tapioca and for sweet potato chemical fertilizer had the highest expense. Among the explicit cost items male labour accounted the highest share in coleus while rental value of own land and farmyard manure were the most important item in sweet potato and tapioca respectively. Cost A1, Cost A2, Cost B1, Cost B2, Cost C1 and Cost C2 per hectare was Rs.10101.74, Rs.13016.86, Rs.10101.74, Rs.17593.80, Rs.10743.99 and Rs.18236.05 respectively for coleus and Rs.8124.94, Rs.8124.94, Rs.13304.05, Rs.8852.50 and Rs.14031.61 respectively for tapioca and Rs.6733.13, Rs.6733.13, Rs.6733.13 and Rs.9079.94, Rs.7311.04 and Rs.9654.84 respectively for sweet potato. The average per hectare yield of coleus, sweet potato and tapioca were 9154 kg, 8801 kilogram and 7398.73 kilogram respectively. Benefit-cost ratio for coleus was Rs.2.27, Rs.1.76, Rs.2.27, Rs.1.30, Rs.2.13 and Rs.1.25 based on costs A1, A2, B1, B2, C1 and C2 where as the corresponding figures for sweet potato were Rs.1.74, Rs.1.74, Rs.1.74, Rs.1.29, Rs.1.60 and Rs.1.21 respectively. In the case of tapioca Benefit cost ratio was Rs.3.19, Rs.3.19, Rs.3.19, Rs.1.95, Rs.2.93 and Rs.1.85. The income measures in relation to different cost concepts, in coleus cultivation such as gross income, farm business income, family labour income, net income and farm investment income were Rs.22884.72, Rs.12782.98, Rs.5290.92, Rs.4648.67 and Rs.12140.73 respectively and Rs.11734.04, Rs.5000.91, Rs.2654.10, Rs.2076.20 and Rs.4423.00 respectively for sweet potato and Rs.25895.56, Rs.17770.62, Rs.12591.51, Rs.11863.95 and Rs.17043.06 respectively for coleus. Functional analysis was carried out using Cobb-douglas production function and the results revealed that for coleus fertilizer was found to be negative and significant. The production elasticity of labour was negative and insignificant. Farmyard manure and planting material were found to be insignificant. With regard to sweet potato labour was found to be negative and significant and the production elasticity of fertilizer was found to be negative though insignificant. Farmyard manure and planting material was found to be significantly influencing production. Regarding tapioca the production elasticity of labour and farmyard manure was found to be negative though insignificant. The high value of production elasticity of area indicated the dominance of this particular factor. Marginal value product of farmyard manure and planting material for coleus and sweet potato were greater than their factor cost ratio and was negative for labour and fertilizer. In the case of marketing of coleus and sweet potato more than 95 per cent of the produce was sold to wholesalers through commission agents. The producer’s share was only 34.53 per cent and 31.76 per cent of the consumers’ rupee for coleus and sweet potato respectively. The index of marketing efficiency was 0.53 for coleus and 0.47 for sweet potato. Regarding tapioca the tubers who performed the role of commission agent and from them produce is taken by mill owners of Salem and Dindigul. Since there is a product diversification the marketing of tapioca tubers was studied only upto the intermediary level.
Open Access
Nutritional status of women engaged in the coir industry
(Department of Home Science, College of Agriculture, Vellayani, 1996) Lovely, Ranganath; KAU; Vimalakumari, N K
The study entitled Nutritional status of women engaged in the coir industry was carried out of assess the nutritional status of women engaged in the spinning of coir yarn and to find out its influence on the work output, which in turn could affect their socio economic status. For the evaluation of nutritional status, the study was conducted in two levels – on a macro sample of 200 coir workers and on a microsample of 40 women coir workers. Details of the socio economic survey showed that the majority of families were small nuclear type, headed by male members following Hinduism. The main occupation of the community was coir work and in all the families at least one woman was employed in a coir cooperative society in the vicinity. Many of the families had a monthly income that ranged between Rs.1000 to 2000. Lack of permanent and full time employment, high cost of living , inability to educate their children, problems related to economic burdens imposed by repayment of loans and medical expenses, lack of housing facilities and absence of male earning members in the family were the important economic problems, in the order of priority, as felt by the families, which have led them to a life of miserable existence. Their poor socio-economic background is reflected the fact that the physical amentities available to the coir worker’s household left much to be desired. All the families were found to be poverty stricken when the Rural Quality of life Index (RQLI) was calculated. The families suffered from household food insecurity that their diets were ill balanced and were deficient with respect to pulses, egg, meat, green leafy vegetables and fruits. The poverty and poor food intake by the families were reflected in the socio economic characteristics and low nutritional status of the women coir workers though they were wage earners. The poor nutritional status is reflected in their poor stature which was suggestive of low food intake and dual responsibilities of the household as well as of the work site. Apart from this the dietary inadequacy was reflected in wide prevalence of anaemia among 85.00 per cent of the respondents, from the microsample, which was found to influence their work output. The work output and nutritional status which are interrelated seemed to be further influenced by the poor working conditions, absence of physical amenities, poor food intake insanitary conditions and consequent parasitic infections and infestations. However, it is gratifying to note that occupational disorders were not prevalent to an extent that merits mention. The coir workers when spin the golden yarns of the economic and social fabric of the state of Kerala, the land of palms, re found to be tredding through a path of poverty and food insecurity leading them to poor nutritional and health status. This makes them a vulnerable lot needing economical social support from the rest of the population and from the Government, through a multidimensional approach, so that they may have better health and nutritional status so as to become the torch bearers of our heritage, who may boost our economy paving way to healthy descendants.
Open Access
Combining ability in vegetable cowpea
(Department of Plant Breeding, College of Agriculture, Vellayani, 1992) Rejatha, V; KAU; Ramachandra Nair, N
A 6 x 6 diallel analysis was conducted at the Department of Plant Breeding, College of Agriculture, Vellayani, during 1990, aimed at analysing the combining ability, gene action and heterosis of six vegetable cowpea (Vigna unguiculata var-sesquipedalis) lines collected from the germplasm maintained in this department. The experiment I consisted of crossing the six parental lines in all possible combinations, without reciprocals. The material for experiment II consisted of the six parental lines and fifteen hybrids. They were grown in a Randomised Block Design with three replications.The combining ability analysis was carried out based on method 2 under model I as suggested by Griffing (1956). The treatments showed significant differences in most of characters except number of pods/plant and fruit yield/plant. The variance due to general combining ability was significant and higher in magnitude than specific combining ability for the characters days to flowering, mean weight of pod, mean length of pod, number of seeds/pod, length of internode and seed/pod ratio. It was found that the parent selection 104 and selection 145 were the best general combiners for most of the characters studied. The parent selection 129 was the best general combiner for earliness. The hybrids selection 145 x selection 129 was the best specific combiner for mean weight of pod and number of seeds/pod. The hybrid selection 145 x kurutholapayar was the best specific combiner for earliness. The significance of g.c.a. and s.c.a. variances for most of characters indicate the importance of additive and non-additive gene action in controlling the inheritance of these characters. But additive gene action played a major role suggesting that improvement could be made through selection. Heterosis was calculated over mid and better parental values. Maximum positive heterosis was found for the character fruit yield/plant. Since considerable heterosis was evident in most of the characters, heterosis breeding can be attempted in cowpea

Kerala Agricultural University, Thrissur

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