Phenotypic stability in cassava estimated by the AMMI analysis with supplementary genotypes

Morais, Lizz Kezzy de; Santiago, Antonio Dias; Cavalcante, Manoel Henrique Bonfim

doi:10.1590/1984-70332017v17n4a55

Cited by 11 publications

(11 citation statements)

References 22 publications

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“…Scientists have highlighted weakness and strengths of these models, which includes commonly used ones like additive main effects and multiplicative interaction (AMMI) and genotype and genotype by environment interaction (GGE) biplots. Several studies on cassava have used AMMI for assessment of GEI effects for traits, storage root yield (Kvitschal et al 2006;Aina et al 2007), carotenoid and dry matter content (Maroya et al 2010;Esuma et al 2016) and early bulking of storage roots (Agyeman et al 2015). The AMMI model was reported to capture a large portion of the GE sum of squares and uniquely separates main and interaction effects as required for most agricultural research purposes (Gauch 2006).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability, stability and heritability for quality and yield characteristics in provitamin A cassava varieties

et al. 2020

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Cassava is widely consumed in many areas of Africa, including Ghana, and is a major part of most household diets. These areas are characterized by rampant malnutrition, because the tuberous roots are low in nutritional value. Provitamin A biofortified cassava varieties have been developed by the International Institute for Tropical Agriculture, but adoption of these varieties in Ghana will largely depend on their agronomic performance, including fresh root yield, dry matter content, resistance to major pests and diseases, mealiness, starch content and the stability of these traits. Eight provitamin A varieties with two white checks were planted in three environments for two seasons to determine stability and variability among the varieties for important traits. There were significant variations in performance between varieties and between environments for cassava mosaic disease, root number, fresh root yield and starch content. High broad-sense heritability and genetic advance were observed in all traits, except for storage root number, and could be exploited through improvement programs. This study identified the best performing enhanced provitamin A varieties for traits that are key drivers of variety adoption in Ghana. In view of this, some varieties can be recommended for varietal release after on-farm testing. The study also showed the possibility of tapping heterosis after careful selection of parents.

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Section: Introductionmentioning

confidence: 99%

Genetic variability, stability and heritability for quality and yield characteristics in provitamin A cassava varieties

et al. 2020

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“…Cassava (M. esculenta Crantz) is one of the main sources of carbohydrates in tropical and subtropical regions of Africa, Asia and Latin America, playing an essential part in the food safety of millions of families, especially in developing regions, where it is grown as subsistence crop (Pootakham et al 2014, Silva et al 2014a, Vidal et al 2015, Schmitz et al 2016, Boas et al 2017, Morais et al 2017. Cassava is also an important raw material for starch extraction, which has several applications in the food, chemical, cosmetic and pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

Agronomic performance and genetic divergence between genotypes of Manihot esculenta

Giles

Oliosi

Rodrigues

et al. 2018

An. Acad. Bras. Ciênc.

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The morphoagronomic characterization of 12 genotypes of M. esculenta was performed during the 2013/2014 and 2014/2015 crop years. The 12 genotypes were planted in a randomized block design, with four replicates per genotype. Number of tuberous roots per plant, weight of tuberous roots, root yield, total plant weight, harvest index, plant height, height of first branch, number of shoots, stem diameter, number of buds, leaf dry weight and petiole length were evaluated. Genotypes "Camuquem" and "Goiás" were the most productive, and "Amarela" and "Gema de Ovo" were the most divergent. Seventy percent of genetic diversity was due to petiole length (22.86%), root yield (19.20%), weight of tuberous roots (14.89%) and number of buds (13.72%). Overall, the present results indicate a broad genetic basis for the evaluated genotypes, so that such genetic variation benefits the plant breeding for future scenarios Further studies of the evaluated genotypes should be performed under environmental limitations, using biochemical and molecular tools to identify markers for genetic improvement.

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“…Environment factors affecting the stability of genotype can be determined by calculation the correlation coefficient between data environments and environment IPCA (Interaction Principal Component Analysis) values. Many scientists use AMMI model for interpreting the experiment conducted in some environments and seasons or years [8,9,10,11,12]. Promising clones identified in previous cassava breeding activities need to be tested in different locations/environments.…”

Section: Introductionmentioning

confidence: 99%

AMMI stability for starch yield of cassava in the acid area for determining clones’ stability

Sholihin¹

2021

E3S Web Conf.

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The study aimed to evaluate the phenotypic stability of cassava promising clones’ cassava clones in acidic regions based on AMMI stability. The study was done during 2015-2018 in several environments in Lampung. The study was done using a randomized complete block design with three replications. Plants were planted in 5 m x 4.8 m plot size, with 1 m distance between rows and 0.8 m within row. The plants were fertilized with 93 kg N, 36 kg P2O5 and 60 kg K2O per hectare. Seven cassava promising clones and two check varieties were used in this study. Data were analyzed using Excel, MSTAT-C and PBTOOLs. Research showed that compared with clone PC2, PC3, PC5 and clone PC7, clone PC1, PC4, PC6, UJ3 and clone UJ5 are more stable. According to the AMMI analysis, based on the seven-month starch yield, the important environmental factors that determined the stability of cassava clones are the content of N and P2O5 in the upper soil layer and the cation exchange capacity ground. The starch yield in seven months of PC4 was the highest among the clones. Clone PC4 is potential to be developed in acid area.

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Phenotypic stability in cassava estimated by the AMMI analysis with supplementary genotypes

Cited by 11 publications

References 22 publications

Genetic variability, stability and heritability for quality and yield characteristics in provitamin A cassava varieties

Genetic variability, stability and heritability for quality and yield characteristics in provitamin A cassava varieties

Agronomic performance and genetic divergence between genotypes of Manihot esculenta

AMMI stability for starch yield of cassava in the acid area for determining clones’ stability

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