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Showing papers by "Indian Agricultural Statistics Research Institute published in 1999"

Journal Article•DOI•
Weighted A-efficiency of block designs for making treatment–control and treatment–treatment comparisons

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Vinod Kumar Gupta1, D.V.V. Ramana1, Rajender Parsad1•
Indian Agricultural Statistics Research Institute1
01 Mar 1999-Journal of Statistical Planning and Inference
TL;DR: In this paper, the problem of comparing v test treatments and a control in b blocks of size k each is considered and conditions under which a design is weighted A-optimal for estimating these two sets of contrasts with unequal precision are derived.

8 citations

Journal Article•DOI•
Use of Growth Indices in Markov Chain Models for Crop Yield Forecasting

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V. Ramasubramanian1, R. C. Jain1•
Indian Agricultural Statistics Research Institute1
01 Mar 1999-Biometrical Journal
TL;DR: An improved Markov chain model has been developed for forecasting of sugarcane yields in which growth indices of biometrical characters based on data from two stages simultaneously have been used as mentioned in this paper.
Abstract: An improved Markov chain model has been developed for forecasting of sugarcane yields in which growth indices of biometrical characters based on data from two stages simultaneously have been utilised. Comparisons were also made with the models in use viz. the regression model and the first order Markov chain model.

6 citations