A statistical assessment of genotypic sensitivity of groundnut (Arachis hypogae L.) to drought in line source sprinkler experiments

Singh, M., Rao, R. C. N. and Williams, J. H. (1991) A statistical assessment of genotypic sensitivity of groundnut (Arachis hypogae L.) to drought in line source sprinkler experiments. Euphytica, 57 1: 19-25. doi:10.1007/BF00040474


Author Singh, M.
Rao, R. C. N.
Williams, J. H.
Title A statistical assessment of genotypic sensitivity of groundnut (Arachis hypogae L.) to drought in line source sprinkler experiments
Formatted title
A statistical assessment of genotypic sensitivity of groundnut (Arachis hypogae L.) to drought in line source sprinkler experiments
Journal name Euphytica
ISBN 0014-2336
1573-5060
Publication date 1991-08
Sub-type Article (original research)
DOI 10.1007/BF00040474
Open Access Status
Volume 57
Issue 1
Start page 19
End page 25
Total pages 7
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Formatted abstract
Comparison of genotypes in line source based drought screening has a number of statistical problems because of the systematic nature of irrigation treatments. A method of applying the joint regression approach has been developed and applied to evaluate sensitivity of 22 groundnut genotypes grown under 11 patterns of drought which were simulated in the field using a line-source sprinkler technique. The experimental errors in neighbouring environments are assumed correlated to account for the systematic nature of the environments. The estimation of parameters of the model and comparison of genotypes for their sensitivity to drought are presented for the pod yield. Stability in performance across the line-source environment was estimated for 22 genotypes. None of the genotypes tested was insensitive to drought across all patterns. Genotypes with stability and high mean yield could be identified in early and mid-season drought patterns but not in other patterns where genotypic sensitivity was strongly correlated with yield performance.
Keyword Arachis hypogae
Peanut
Groundnut
Drought sensitivity
Line-source sprinkler
Correlated errors
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Wed, 25 Jun 2014, 18:49:59 EST by Dr Rao Rachaputi on behalf of Centre for Plant Science