AMMI Stability Analysis and Estimation of Genetic Parameters for Growth and Yield Components in Cassava in the Forest and Guinea Savannah Ecologies of Ghana

Twenty cassava genotypes were arranged in a randomised complete block design with three replications and assessed for growth and yield stability using the additive main effect and multiplicative interaction (AMMI) analysis. Highly significant ( ) effects of genotype, environment, and genotype environment interaction were observed for all traits studied. The AMMI analysis of variance indicated that genotype accounted for 51% of the total sum of squares for height at first branching followed by environment (33%) and interaction (15%). For fresh root yield, environment effects accounted for 37% of the total sum of squares, whilst genotype and interaction accounted for 32% and 29%, respectively. Genotypic variances for harvest index (HI), plant height, storage root yield, and dry matter content contributed a greater proportion of the phenotypic variance indicating stronger genetic control. This suggests better chance of progress in the genetic improvement of these traits. Genotype MM96/1751 combined high yield with stability according to the yield stability index ranking across environments. On the other hand genotypes UCC 2001/449 and 96/1708 though high yielding were unstable according to AMMI stability value scores. However they can be tested further in more environments to ascertain their specific adaptability for release to farmers for cultivation to boost cassava production and ensure food security.

[1]  R. Tumuhimbise,et al.  Genotype × environment interaction effects on early fresh storage root yield and related traits in cassava , 2014 .

[2]  F. Abay,et al.  AMMI Analysis of GenotypexEnvironment Interaction and Stability of Sesame Genotypes in Northern Ethiopia , 2014 .

[3]  L. K. Bose,et al.  Use of AMMI and other stability statistics in the simultaneous selection of rice genotypes for yield and stability under direct-seeded conditions , 2014 .

[4]  M. Tewodros,et al.  Genetic Diversity of Cassava ( Manihot esculenta Crantz) Genotypes in Ethiopia , 2013 .

[5]  F. Abay,et al.  AMMI AND GGE BIPLOT ANALYSIS OF BREAD WHEAT GENOTYPES IN THE NORTHERN PART OF ETHIOPIA , 2013 .

[6]  Jean-Marcel Ribaut,et al.  The statistical analysis of multi-environment data: modeling genotype-by-environment interaction and its genetic basis , 2013, Front. Physiol..

[7]  M. Agaba,et al.  Physiological and molecular characterization of drought responses and identification of candidate tolerance genes in cassava , 2013, AoB PLANTS.

[8]  Y. Baguma,et al.  Evaluation of Ugandan cassava germplasm for drought tolerance , 2013 .

[9]  Singh,et al.  Studies on Genetic Characteristic of Upland Rice (Oryza sativa L.) , 2013 .

[10]  E. Farshadfar,et al.  AMMI stability value and simultaneous estimation of yield and yield stability in bread wheat (Triticum aestivum L.) , 2011 .

[11]  A. Dixon,et al.  Quantitative variation and interrelationship between factors influencing cassava yield. , 2010 .

[12]  .. E.A.Akinrinde,et al.  G×E interaction effects on yield and yield components of cassava (landraces and improved) genotypes in the savanna regions of Nigeria , 2009 .

[13]  R. Suresh,et al.  Genetic variability and correlation for yield and grain quality characters of rice grown in coastal saline low land of Tamilnadu. , 2009 .

[14]  E. Farshadfar.  Incorporation of AMMI stability value and grain yield in a single non-parametric index (GSI) in bread wheat. , 2008, Pakistan journal of biological sciences : PJBS.

[15]  H. Piepho,et al.  Comparing the performance of cereal varieties in organic and non-organic cropping systems in different European countries , 2008, Euphytica.

[16]  M. El-Sharkawy.  Physiological characteristics of cassava tolerance to prolonged drought in the tropics: implications for breeding cultivars adapted to seasonally dry and semiarid environments , 2007 .

[17]  .. E.A.Akinrinde,et al.  Effect of soil moisture stress on growth and yield of cassava in Nigeria. , 2007 .

[18]  M. Akoroda,et al.  Genetic Variation and Genotype × Environment Interaction for Yield and Other Agronomic Traits in Cassava in Nigeria , 2007 .

[19]  .. E.A.Akinrinde,et al.  Trait Association and Path Analysis for Cassava Genotypes in Four Agroecological Zones of Nigeria , 2007 .

[20]  F. Padi.  Genotype × environment interaction and yield stability in a cowpea-based cropping system , 2007, Euphytica.

[21]  A. Dixon,et al.  Effect of soil moisture stress on growth and yield of cassava in Nigeria. , 2007, Pakistan journal of biological sciences : PJBS.

[22]  G. Ssemakula,et al.  Genotype X environment interaction, stability and agronomic performance of carotenoid-rich cassava clones , 2007 .

[23]  N. Dechassa,et al.  Genetic Variability for Yield and Other Agronomic Traits in Sweet Potato , 2007 .

[24]  E. J. Oliveira,et al.  Pod yield stability analysis of runner peanut lines using AMMI. , 2006 .

[25]  N. Radhakrishnan,et al.  Genetic variation in tomato for yield and resistance to bacterial wilt , 2006 .

[26]  Weikai Yan,et al.  Biplot analysis of multi-environment trial data: Principles and applications , 2006 .

[27]  F. Eeuwijk.  Linear and bilinear models for the analysis of multi-environment trials: I. An inventory of models , 1995, Euphytica.

[28]  M. El-Sharkawy.  Cassava biology and physiology , 2004, Plant Molecular Biology.

[29]  Joshua A. Udall,et al.  Breeding for Quantitative Traits in Plants , 2003 .

[30]  U. Gullberg,et al.  GROUPING LOCATIONS FOR EFFICIENT CASSAVA EVALUATION IN MALAWI , 2003, Experimental Agriculture.

[31]  M. Fregene,et al.  Genetic analysis and QTL mapping of early root bulking in an F1 population of non-inbred parents in cassava (Manihot esculenta Crantz) , 2002, Theoretical and Applied Genetics.

[32]  R. Hillocks,et al.  Cassava botany and physiology. , 2001 .

[33]  J. Purchase,et al.  Genotype × environment interaction of winter wheat (Triticum aestivum L.) in South Africa: II. Stability analysis of yield performance , 2000 .

[34]  A. Dixon,et al.  Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava , 2000 .

[35]  P. Cornelius,et al.  Sites regression and shifted multiplicative model clustering of cultivar trial sites under heterogeneity of error variances , 1997 .

[36]  Jenny Morris.  Women's Madness: Misogyny or Mental Illness?, Jane Ussher, 1991,Hemel Hempstead, Harvester Wheatsheaf,341 pp., £13.50 (paperback);Women, Health and Poverty: An Introduction, Sarah Payne, 1991,Hemel Hempstead, Harvester Wheatsheaf,236 pp., £9.95 (paperback) , 1993 .

[37]  H. Gauch.  Model selection and validation for yield trials with interaction , 1988 .

[38]  R. K. Singh,et al.  Biometrical methods in quantitative genetic analysis , 1978 .

[39]  W. A. Russell,et al.  Stability Parameters for Comparing Varieties , 1966 .