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Article
1998
Kerala Agricultural University

Combining ability was studied in a 10 x 10 diallel cross in cowpea for nine important characters. The variance due to general combining ability and specific combining ability showed both additive and non-additive gene action for plant height, primary branches, days to flowering, pod length, pod weight, pods per plant, seeds per pod, 100 seed weight and yield per...

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20_2_49-58_002-1628.pdf.jpg
Article
1982
Kerala Agricultural University

A rigorous justification for the comparison of treatments by the stability approach initated by Finlay and Wilkinson (1963) has been attempted. The data on Jaya variety of rice were analysed both by the method of stability co-efficients as also by the method of analysis of groups of experiments. The results obtained by the above two methods revealed that they ar...

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31_1_107-111_0002-1628.pdf.jpg
Article
1993
Kerala Agricultural University

A stochastic model for determination of time distribution of cumulative rainfall for a specific period within a njattuvela was worked out by making use of the daily rainfall data collected from the Regional Agricultural Research Station, Kerala Agricultural University, Kumarakom. A day having a minimum of 3 mm of rainfall was regarded as a wet day. The daily rai...

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Thesis
2017
Department of Agricultural Statistics, College of Horticulture, Vellanikkara

Permanent Manurial Trials are experiments performed at fixed sites in a long run to assess the role of nutrient sources in catalyzing crop production. The experimental data from Permanent Manurial Trial in rice at RARS, Pattambi was explored in a view to identify suitable set of fertilizer treatments in optimizing grain yield.The experiment was commenced in 1973 un...

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173995 Abstract.pdf.jpg
Thesis
2017
Department of Agricultural Statistics, College of Horticulture
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DHANEESH(2010-19-201).pdf.jpg
Thesis
2013
Department of Agricultural Statistics,College of Horticulture Vellanikkara, Thrissur-680 656

Technological change and efficiency improvement are important sources of productivity growth in any economy. The concept of technical efficiency (TE) is based on input and output relationships. Technical inefficiency arises when actual or observed output from a given input mix is less than a possible mix. The analysis of technical efficiency involves the assessment...

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37_1-2_1-4_0971-636X.pdf.jpg
Article

Studios on parameters of variability . correlation and path coefficient analysis of fruit yield in Abttmoschus caillei L- revealed that characters such as number of branches per plant, number of nodes per plant, plant height and fnlit length had maximum coefficient of variation. Higher values of heritahility anil genetic advance were simultaneously estimated for...

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170614.pdf.jpg
Thesis
1995
Department of Agricultural Statistics, College of Horticulture, Vellanikkara

Block designs are usually used in experiments where it is important to eliminate heterogeneity at least in one direction. From the class of designs it is desired to choose a design which will estimate the elementary treatment contrasts with maximum precision. The optimality criteria are based on the dispersion matrix of all possible elementary contrasts. The A-o...

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Thesis
2001
Department of Agricultural Statistics, College of Horticulture,Vellanikkara

Sacciolepis interrupta and Isachne miliacea are two major problem weeds of rice in Kerala. An investigation on the quantum of crop loss incurred due to different densities of these weeds was undertaken to study the extent of damage inflicted on the crop which would necessitate early control of these weeds. The observations recorded on the various crop and weed ...

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Thesis
2017
Department of Agricultural Statistics, College of Horticulture, Vellanikkara

The study entitled “Time series analysis and forecasting of the prices of Indian Natural Rubber” is primarily intended to forecast the prices for Indian Natural Rubber (NR). For forecasting the prices, firstly, domestic NR price was decomposed it into time series components. Evaluation of growth, instability and relationship between the domestic and international p...

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