Among the various diallel techniques, combining ability analysis developed by griffing. Pdf diallel analysis of some important grain yield traits in bread. Diallel analysis of wheat grain protein content and yield in f 1 and f 2 generations under contrasting nitrogen conditions. Bread wheat, diallel analysis, inheritanc e, planting dates, yield introduction wheat triticum aestivum l. 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.
It is the leading grain crop of the temperate climates of. Agdr analysis of genetic designs with r for windows. Available formats pdf please select a format to send. Diallel cross analysis of plesiomorphic traits triticum. Beil, gary milton, estimates of general and specific combining ability for grain yield and its components in grain sorghum 1965. Pdf diallel analysis of some important grain yield. The crosses were attempted by adopting diallel analysis excluding reciprocals involving eight elite genotypes during rabi2009. Genetic analysis of wheat yield has shown that grain yield is a highly complex character determined by component traits adams, 1976. Pdf diallel analysis of wheat grain protein content and. Diallel analysis of some important grain yield traits in bread wheat crosses article pdf available in turkish journal of field crops 221. Diallel analysis approaches to identify superior spring.
Diallel cross analysis for maturity and yieldrelated traits in melon cucumis melo l. Maize zea mays, combining ability, diallel analysis. 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 and additive dominance models are the established mechanisms of conventional breeding to utilize allelic and. Diallel analysis of the latent period of stripe rust in wheat. For effectiveimprovement of quality and yield of wheat, a. The five parent and ten f 1 progeny were grown in the glasshouse and were inoculated with three rust pathotypes at the seedling stage. In this study, four methods of diallel analysis were used to estimate the general gca and specific sca combining. Analysis of combining ability over environments in diallel. Diallel analysis of some grain yield traits in wheat.
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 was conducted for grain yield and its component traits in a set of bread wheat genotypes following a diallel excluding reciprocals mating. Pdf diallel analysis of quantitative traits in wheat. Diallel designs, analyses, and reference populations.
Diallel analysis of cultivar mixtures in winter wheat. Analysis of the data indicated that a few major genes with dominance effects were the most important. 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. Combining ability analysis over environments in diallel. In order to study genetic architecture of physiological criteria of drought tolerance in wheat using different diallel techniques, an experiment was conducted on six. Two diallel series of crosses, each involving nine srw parents, were. The semidwarf wheats reduced the yield loss due to lodging resistance. Sughroue iowa state university follow this and additional works at. A major objective of biometrical genetics is to explore the nature of gene action in determining quantitative traits. 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. Application of diallel analyses in crop improvement. Genetic analysis of root growth in wheat the journal of.
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 of wheat parents and their f2 progenies. Pdf grain yield and grain protein content gpc of bread wheat are crucial determinants of its profitability and product quality. Genetic analysis of important morphological traits using. Combining ability analysis of bread quality in wheat. Estimates of general and specific combining ability for. 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. Nine parents of bread wheat and twenty derived f2 hybrid populations developed in a partial diallel scheme were evaluated with. Some issues which evidently remain as areas of contention in diallel analysis are reveiwed. Pdf diallel analysis for plant height in winter wheat. Diallel analysis of fusarium head blight resistance in.
This also includes determination of the number of major genetic factors or genes responsible for the traits. A new mixed analytical method for genetic analysis of diallel data, the canadian journal of forest research. In this paper we formulate a biplot approach for graphical diallel analysis. Our objective was to evaluate the type of gene action and the general and specific combining abilities required for various morphological traits in wheat. 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. Results of the diallel analysis, indicated that the components. Diallel analysis of wheat streak mosaic virus resistance in winter wheat frederic hakizimana, amir m. Study on combining ability and heterosis in maize zea. Therefore, it is essential to understand the mode of gene effects implicated in the genetic control of these characteristics. Principles and utilization of combining ability in plant. 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. Part of theagricultural science commons,agriculture commons,agronomy and crop sciences commons,biostatistics commons, and thegenetics commons.
Genetic analysis of grain yield per spike and some agronomic. Earlier workers revealed that both general and specific combining abilities were involved for yield and yield components 4, 5, and 6. From the practical point of view, diallel mating designs provide a very simple and convenient method. The present wheat breeding for plant height is based on the incorporation of growth semidwarf habit in commercial wheat cultivars. Diallel analysis of wheat streak mosaic virus resistance. Application of diallel analyses in crop improvement 1chukwu, s. Sazetak dialelnim krizanjem cetiri sorte psenice pobeda, renesansa, sara i partizanka je ispitan ucinak gena za broj i masu zrna po klasu. Genetic analysis of morphophysiological traits and yield. A half diallel was made amongst five wheat triticum aestivum l.
Wheat and barley research diallel analysis of some. One of the several biometrical procedures available to plant breeders for evaluating and characterizing genetic variability existing in a crop species is diallel analysis. 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. 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. The genetic analysis variance, combining ability, correlations, and path coefficient. 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. Crop science abstract hybrid vigor in a sevenparent. We conducted a 5 x 5 complete diallel cross experiment in bread wheat triticum aestivum with the genotypes 6309, chkwal50, dhrabi, bhkhar02, and fs08. Diallel analysis of some important grain yield traits in bread wheat crosses. Please view the pdf by using the full text pdf link under view to the left. 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. The analysis of continuous variation in a diallel cross of nicotianarustica varieties. Analiza varijance kombinirajucih sposobnosti ukazuje na. 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. Genetic analysis of physiological indicators of drought tolerance in bread wheat using diallel technique. Diallel analysis of wheat streak mosaic virus resis. Total ten diverse genotypes of bread wheat were crossed in half diallel fashion. Diallel analysis approaches to identify superior spring wheat. Fellahi zea, hannachi a, bouzerzour h 2015 partial diallel analysis of genetic behavior for several polygenic traits in.
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%. 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. According to world data atlas, global maize production was 14 million tons in the year 2017. 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.
Combining ability in the f1 and f2 generations of diallel. 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. Among the various diallel techniques, combining ability analysis outlined by griffing3 is being considered to be more useful to the wheat breeders. Estimates of general and specific combining ability for grain yield and its components in grain sorghum. The mode of inheritance, calculated for each combination. Wheat breeding in the semiarid region of algeria aims to develop new cultivars combining high productivity and good abiotic stress tolerance. The mean squares due to gca and sca showed highly significant differences for all the.
For both grain yield and protein, performance in mixtures was highly correlated with the average of the two component pure lines. Research article partial diallel analysis of genetic. The combining ability analysis was calculated using. 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. 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. 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. Genetic analysis of important morphological traits using diallel analysis in wheat. Paper open access forecast of economic and valuable. A diallel analysis for panicle number, tiller number, panicle length, spikelet number and the number of primary branch in f 1 progeny. Thell were analyzed for combining ability for quantitative and quality traits. Mian ahmad raza, ghulam hassan and naqib ullah khan. Pdf one of the most important tasks in a wheat breeding program is the development of high yielding wheat cultivars by crossing the parents. In a full diallel, all parents are crossed to make hybrids in all possible combinations. Subtly and silently maize, also known as corn, has emerged as the most important cereal crop after rice in.
Proper analysis of the diallel mating design jay r. 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. Comparison of the efficiency among half diallel methods in. Pdf diallel analysis of wheat grain protein content and yield in f. Diallel cross analysis in durum wheat triticum durum desf. Heterosis and combining ability for yield and quality.
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