Comparison of the efficiency among half diallel methods in. A diallel cross is a mating scheme used by plant and animal breeders, as well as geneticists, to investigate the genetic underpinnings of quantitative traits. Griffing 1956 provided clear statements of methods of analysis of diallel crosses in terms of general and specific combining ability and the circumstances in which each method of analysis should be used. Variations include half diallels with and without parents, omitting reciprocal crosses. Combining ability analysis of bread quality in wheat. Pdf diallel analysis of some important grain yield traits in bread. The five parent and ten f 1 progeny were grown in the glasshouse and were inoculated with three rust pathotypes at the seedling stage. Fellahi zea, hannachi a, bouzerzour h 2015 partial diallel analysis of genetic behavior for several polygenic traits in. Mian ahmad raza, ghulam hassan and naqib ullah khan. The diallel analysis method has been frequently used for parent selection as an appropriate scheme to obtain genetic information of yield traits in a short period of time, which can be used for improving efficiency in wheat breeding programs kohan. Abstract due to high production cost and prevention of environmental pollution, it is important to reduce the amount of nitrogen n fertilizer used on wheat triticum aestivum l. In order to study genetic architecture of physiological criteria of drought tolerance in wheat using different diallel techniques, an experiment was conducted on six. Estimates of general and specific combining ability for.
Diallel analysis approaches to identify superior spring wheat. While soft red winter srw wheat breeders have begun to characterize germplasm for resistance, little information is available on the value of cultivars as parents in breeding for fhb resistance. The mode of inheritance, calculated for each combination. Conventional diallel analysis is limited to partitioning the total variation of the data into general combining ability gca of each genotype and specific combining ability sca of each cross. Diallel analysis of mixing ability, analogous to genetic analysis of combining ability, demonstrated that pure lines differed in their ability to determine both grain yield and protein in. Agdr analysis of genetic designs with r for windows. One of the several biometrical procedures available to plant breeders for evaluating and characterizing genetic variability existing in a crop species is diallel analysis. Analysis of combining ability, gene action and heterosis in a full diallel cross of bread wheat ismail hussain ali fahmi salih sulaiman college of agric. Traits in diallel crosses of bread wheat triticum aestivum l. Diallel analysis revealed significant general combining ability gca estimates of up to 17% for hmf, as well as significant specific combining ability sca effects of up to 25%. The genetic analysis variance, combining ability, correlations, and path coefficient. Please view the pdf by using the full text pdf link under view to the left. Genetic analysis of physiological indicators of drought tolerance in bread wheat using diallel technique.
The semidwarf wheats reduced the yield loss due to lodging resistance. Wheat breeding in the semiarid region of algeria aims to develop new cultivars combining high productivity and good abiotic stress tolerance. Diallel analysis of wheat streak mosaic virus resistance. Estimates of general and specific combining ability for grain yield and its components in grain sorghum. Genetic analysis of root growth in wheat the journal of. Pdf diallel analysis of wheat grain protein content and. Crop science abstract hybrid vigor in a sevenparent. Nine parents of bread wheat and twenty derived f2 hybrid populations developed in a partial diallel scheme were evaluated with three replications at the experimental site of the national agronomic research institute of algeria inraa, setif unit, during the 201220 crop season. Diallel analysis of wheat streak mosaic virus resis. Combining ability in the f1 and f2 generations of diallel. Genetic analysis of wheat yield has shown that grain yield is a highly complex character determined by component traits adams, 1976. Sughroue iowa state university follow this and additional works at. For effectiveimprovement of quality and yield of wheat, a. Application of diallel analyses in crop improvement.
The results indicated significant differences among the parents for general combining ability gca and crosses for specific combining ability sca for all the characters studied. Diallel analysis in the selection of crops dias the computer program is intended for calculation of genetic parameters, combinational ability of variety of grain crops and the analysis of initial material on quantitative signs on the basis of methods of griffing and hayman 10,11. Diallel analysis of the latent period of stripe rust in wheat. Diallel mating designs have been designed to deal with the type of genetic experiments that help assess variability in observed quantitative traits arising from genetic. Part of theagricultural science commons,agriculture commons,agronomy and crop sciences commons,biostatistics commons, and thegenetics commons. Maize zea mays, combining ability, diallel analysis. The crosses were attempted by adopting diallel analysis excluding reciprocals involving eight elite genotypes during rabi2009. Pdf grain yield and grain protein content gpc of bread wheat are crucial determinants of its profitability and product quality. Diallel analysis of fusarium head blight resistance in. Combining ability analysis in diallel crosses of wheat triticum aestivum l in order to realize the combining ability of wheat, 15 hybrids were synthesised in a 6 x 6 diallel fashion excluding reciprocals and to isolate the good combiner for various yield component traits. Nine parents of bread wheat and twenty derived f2 hybrid populations developed in a partial diallel scheme were evaluated with. Pdf one of the most important tasks in a wheat breeding program is the development of high yielding wheat cultivars by crossing the parents. Combined analysis of variance for wheat streak mosaic this experiment was conducted twice in the greenhouse in virus wsmv symptom rating in a 9by9 complete diallel two different planting environments winter and spring. Heterosis and combining ability for yield and quality.
A half diallel was made amongst five wheat triticum aestivum l. Application of diallel analyses in crop improvement 1chukwu, s. Beil, gary milton, estimates of general and specific combining ability for grain yield and its components in grain sorghum 1965. Diallel analysis of some important grain yield traits in bread wheat crosses. In this study, four methods of diallel analysis were used to estimate the general gca and specific sca combining. Among the various diallel techniques, combining ability analysis outlined by griffing3 is being considered to be more useful to the wheat breeders. Diallel analysis of wheat streak mosaic virus resistance in winter wheat frederic hakizimana, amir m. A complete diallel cross of 10 selected wheat varieties was grown for three years 19571959 at davis, california, to determine whether genetic information useful in the breeding of selfpollinated plants could be obtained from parental and f1 data. Diallel analysis approaches to identify superior spring. The diallel analysis method has been frequently used for parent selection as an appropriate scheme to obtain genetic information of yield traits in a short period of time, which can be used for improving efficiency in wheat breeding programs kohan and heidari, 2014. Analiza varijance kombinirajucih sposobnosti ukazuje na. Subtly and silently maize, also known as corn, has emerged as the most important cereal crop after rice in. Diallel analysis of some important grain yield traits in bread wheat crosses article pdf available in turkish journal of field crops 221. A diallel cross is a mating scheme used by plant and animal breeders, as well as geneticists, to investigate the genetic underpinnings of.
The present investigation entitled diallel studies in bread wheat triticum aestivum l. Two diallel series of crosses, each involving nine srw parents, were. Total ten diverse genotypes of bread wheat were crossed in half diallel fashion. Proper analysis of the diallel mating design jay r. Genetic analysis of morphophysiological traits and yield. Genetic analysis was conducted for grain yield and its component traits in a set of bread wheat genotypes following a diallel excluding reciprocals mating. Sazetak dialelnim krizanjem cetiri sorte psenice pobeda, renesansa, sara i partizanka je ispitan ucinak gena za broj i masu zrna po klasu.
For both grain yield and protein, performance in mixtures was highly correlated with the average of the two component pure lines. Results of the diallel analysis, indicated that the components. Study on combining ability and heterosis in maize zea. Genetic analysis of important morphological traits using diallel analysis in wheat. Available formats pdf please select a format to send. Analysis of the data indicated that a few major genes with dominance effects were the most important. Earlier workers revealed that both general and specific combining abilities were involved for yield and yield components 4, 5, and 6. Among the various diallel techniques, combining ability analysis developed by griffing. Thell were analyzed for combining ability for quantitative and quality traits. Research article partial diallel analysis of genetic.
The analysis of continuous variation in a diallel cross of nicotianarustica varieties. Pdf diallel analysis for plant height in winter wheat. Diallel analysis of wheat grain protein content and yield in f 1 and f 2 generations under contrasting nitrogen conditions. The present wheat breeding for plant height is based on the incorporation of growth semidwarf habit in commercial wheat cultivars. Pdf diallel analysis of quantitative traits in wheat. Analysis of combining ability over environments in diallel. Therefore, it is essential to understand the mode of gene effects implicated in the genetic control of these characteristics. It is the leading grain crop of the temperate climates of. Pdf diallel analysis of wheat grain protein content and yield in f.
In a full diallel, all parents are crossed to make hybrids in all possible combinations. Diallel analysis of some grain yield traits in wheat. Paper open access forecast of economic and valuable. Our objective was to evaluate the type of gene action and the general and specific combining abilities required for various morphological traits in wheat. In this paper we formulate a biplot approach for graphical diallel analysis. A major objective of biometrical genetics is to explore the nature of gene action in determining quantitative traits. Bread wheat, diallel analysis, inheritanc e, planting dates, yield introduction wheat triticum aestivum l. Diallel cross analysis for maturity and yieldrelated traits in melon cucumis melo l. Pdf diallel analysis of some important grain yield. A diallel analysis for panicle number, tiller number, panicle length, spikelet number and the number of primary branch in f 1 progeny.
Diallel cross analysis in durum wheat triticum durum desf. The study in general determined the heterosis and combining ability for yield and quality characteristics of chinese corn hybrids. From the practical point of view, diallel mating designs provide a very simple and convenient method. Genetic analysis of important morphological traits using. We conducted a 5 x 5 complete diallel cross experiment in bread wheat triticum aestivum with the genotypes 6309, chkwal50, dhrabi, bhkhar02, and fs08.
A new mixed analytical method for genetic analysis of diallel data, the canadian journal of forest research. Several methods for analysis have been adopted in which parents may be pure lines or open pollinated varieties. The combining ability analysis was calculated using. The mean squares due to gca and sca showed highly significant differences for all the.
Some issues which evidently remain as areas of contention in diallel analysis are reveiwed. Principles and utilization of combining ability in plant. According to world data atlas, global maize production was 14 million tons in the year 2017. Combining ability analysis over environments in diallel. One of the suitable means to detect performance of offsprings is diallel mating system, a method whereby the parents and progeny performance can be statistically separated into components relating to gca and sca. Genetic analysis of grain yield per spike and some agronomic. Diallel cross analysis of plesiomorphic traits triticum. In any hybridization program, recognition of the best combination of two or more parental genotypes to maximize variance within related breeding populations, and as a result the chance of recognizing superior transgressive segregants in the segregating populations, are the most critical challenge to plant breeders.
Diallel analysis and additive dominance models are the established mechanisms of conventional breeding to utilize allelic and. The mode of inheritance and gene effect for plant height of 7x7 half diallel crosses of wheat varieties and lines was evaluated in f1 and f2 generation. Diallel analysis of cultivar mixtures in winter wheat. Diallel designs, analyses, and reference populations. This also includes determination of the number of major genetic factors or genes responsible for the traits. Wheat and barley research diallel analysis of some. In the estimation of genetic variance components for an. Diallel analysis of wheat parents and their f2 progenies. Combining ability analysis was undertaken in a 12 x 12 half diallel progeny of bread wheat for grain yield and its component characters under timely e 1 and late sown e 2 conditions.
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