Indian Society of Genetics & Plant Breeding

Important

AMMI ANALYSIS OF A PEARL MILLET YIELD TRIAL

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The analysis of yield trial data to draw accurate inference is an important aspect
of the plant breeding programmes. Grain yield data on 44 pearl millet genotypes
tested over 22 locations spread across India were subjected to the ordinary ANOVA
and the additive main-effects and multiplicative interaction (AMMl) analyses. The
ANOVA model analysed only the main effects (genotypes and environments) while
treating the G x E interaction as residual and accounted for the 81.7 per cent of
the trial 55 while AMMI model analyzed both the main effects and G x E interaction,
and accounted for 86.1 per cent of the trial 55. Furthermore, biplot from AMMIl
parameters provided the comprehensive understanding of the pattern of the data.
Thus, following the AMMll model, 9 genotypes (MH 305, MH 310, MH 328, MH
342, MH 393, MH 401, MH 406, MH 411 and MP 223) were identified as having
general adaptability, while 11 genotypes (MH 306, MH 349, MH 351, MH 390; MH
394, MH 402, MH 403, MH 405, MH 408, MH 412 and MH 413) as with specific
adaptability to the locations tested. The AMMI (biplot) analysis characterized the
four locations, namely Gwalior (M.P.), Patancheru (A.P.), Gulberga (Karnataka) and
Aurangabad-(Maharashtra) as the ideal locations for growing the pearl millet crop
in general.
 

Keywords: Pearl millet, yield trial, G x E interaction, Additive Main effects and Multiplicative Interaction (AMMI), adaptability

Info

Year: 1998
Volume: 58
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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