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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 82 (1991), S. 598-601 
    ISSN: 1432-2242
    Keywords: Gene action ; Cold tolerance ; Cicer arietinum ; Generation mean analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Six crosses were investigated using combining ability and generation mean analyses for reaction to cold tolerance in chickpea (Cicer arietinum L.). The combining ability variances revealed the significance of both additive and nonadditive gene effects, with preponderance of additive gene effects. The generation mean analysis revealed the presence of genie interactions in addition to additive and dominance gene effects. Among the interactions, additive×additive and dominance×dominance with duplicate epistasis were present. Cold tolerance was dominant over susceptibility to cold. Selection for cold tolerance would be more effective if dominance and epistatic effects were reduced after a few generations of selfing.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 40 (1989), S. 169-172 
    ISSN: 1573-5060
    Keywords: Cicer arietinum ; chickpea ; epistasis ; triple test cross
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Triple test cross-analysis was used to detect epistasis in chickpea. None of the characters investigated exhibited epistasis. In the absence of epistasis, additive and dominance effects were estimated. The results indicated the importance of additive genetic variance for seed yield, biological yield, number of primary branches, number of secondary branches, 100-seed weight, days to flower, and number of seeds per pod; dominance genetic variance for days to mature; and both additive and dominance genetic variances for plant height. Selection methods, such as pedigree and bulk, are suggested for the improvement of most characters.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 49 (1990), S. 83-88 
    ISSN: 1573-5060
    Keywords: Cicer arietinum ; chickpea ; harvest index ; seed yield ; biological yield ; association ; yield components
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three thousand two hundred and sixty-seven kabuli chickpea (Cicer arietinum L.) germplasm accessions were grown during the spring season of 1980 at Tel Hadya, the main research station of ICARDA, Syria to determine the components of seed yield. Observations were recorded on seed yield and 14 other characters. Correlation and path coefficient analyses were done to find out associations among characters and to assess the direct and indirect contribution of each character to seed yield. Large variation was observed for all the characters studied except days to flowering, days to maturity and protein content. Correlation and path coefficient analyses showed that biological yield and harvest index were the major direct contributors to seed yield. The 100-seed weight, plant height, days to flowering and maturity, canopy width, and protein content contributed to seed yield mainly through indirect effect via biological yield and harvest index. The 100-seed weight and seed yield were major contributors to biological yield. Major contributor to protein content was days to maturity. Results indicated that selection for high biological yield and harvest index would lead to high seed yield; and selection for large seed size would lead to high biological yield. Therefore, these characters should receive the highest priority in selecting high yielding plants in chickpea breeding.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-5060
    Keywords: Ascochyta blight ; Fusarium wilt ; cold tolerance ; drought tolerance ; insect resistance ; cyst nematode ; multiple stress resistance ; heat tolerance ; germplasm ; Helicoverpa ; wild species ; wide hybridization ; interspecific crosses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Chickpea (Cicer arietinum L.) production has remained static for the past two decades. One major limiting factor has been susceptibility of cultivars to several biotic and abiotic stresses that adversely affect yield. In recent years, cultivars resistant to Ascochyta blight (Ascochyta rabiei [Pass.] Lab.), Fusarium wilt (Fusarium oxysporum f. sp. ciceris), and cold have been bred and released in many countries. Some progress has been made in breeding for resistance to drought, insects, and cyst nematode, but not for viruses, heat, and salinity. Two or more stresses are of equal importance in most chickpea growing areas. Therefore, future efforts should be directed toward the development of cultivars with multiple-stress resistance. Proper understanding of important stresses in different countries and the genetics of resistance should lead to more systematic approaches to resistance breeding. Wild Cicer species hold promise and deserve attention in resistance breeding.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 58 (1991), S. 5-12 
    ISSN: 1573-5060
    Keywords: Cicer arietinum ; cluster analysis ; environments ; G x E interaction ; seed yield ; time to flowering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Cluster analysis was used as a tool to classify chickpea growing environments. Data on time to flowering (days) and seed yield (kg ha-1) for two chickpea international yield trials developed by ICARDA and ICRISAT, and conducted by cooperating scientists during 1985–86 and 1986–87 were used for this study. The GENSTAT hierarchical, agglomerative clustering programme was employed with correlation coefficient as the distance measure and single linkage as the clustering strategy. Results revealed that by characterization of locations, the genotype x location interaction within a cluster/zone was minimized. From the classification, it appears that selection for performance at Tel Hadya-the main research station at ICARDA in Syria—should be relevant to much of Syria, the drier areas of Algeria and parts of the Iberian Peninsula. In absence of sufficient data and high degree of season-to-season variability in weather patterns it was not possible to indicate other key sites which could provide an opportunity for selection of materials for specific adaptation in a group of environments or a zone.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5060
    Keywords: drought ; cold ; heat ; screening techniques ; food legumes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Breeding for resistance to extremes of temperature and moisture in cool season food legumes is limited by the lack of adequate screening techniques. The success of each technique depends upon the representativeness and reproducibility of the type of stress created. Descriptions of successful techniques are presented for frost and terminal drought. Development of new screening tests designed to select for specific adaptive traits require a better knowledge of the mechanisms of resistance in these crops, especially to drought. Rooting depth, early vigor, reduced branching, and osmotic adjustment are discussed. Other mechanisms of resistance to drought, heat, freezing, or chilling have been proposed but need to be studied jointly by crop physiologists and plant breeders.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-5036
    Keywords: chickpea ; foliar application of FeSO4 ; genetic differences in resistance to Fe-deficiency ; germplasm Fe-deficiency ; inheritance of resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Iron-deficiency chlorosis is commonly observed in some genotypes of chickpea (Cicer arietinum L.) in the Mediterranean region of West Asia and North Africa when grown on calcareous soils. An evaluation of 3267 germplasm lines of kabuli-type chickpea for iron-deficiency chlorosis on the calcareous soil (calcium carbonate content ∼20%, pH∼8.5) of the principal research station of the International Centre for Agricultural Research in the Dry Areas (ICARDA) at Tel Hadya, northern Syria, revealed that most of the lines were tolerant while only 25 lines showed susceptibility. Foliar spray of 0.5% FeSO4 at the onset of chlorosis was effective in correcting the symptoms but did not result in significant increase in crop yield. Studies on the inheritance of resistance to iron-deficiency chlorosis revealed that the resistance was dominant and is governed by a single gene. To ensure elimination from the breeding material of chickpea genotypes inefficient in Fe-use on the calcareous soils of the Mediterranean region, a negative selection for Fe-deficiency chlorosis in the segregating populations in the field has proved effective. The method for field screening of large number of breeding lines and germplasm is described.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Plant foods for human nutrition 28 (1979), S. 323-331 
    ISSN: 1573-9104
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The present investigation was carried on a 8 parent diallel of mungbean involving 28 F1's and 28 F2's excluding reciprocals grown at three different locations including Meerut, Ludhiana and Hissar. Three different analyses including combining ability, graphical and component analysis were utilized. From the combining ability analysis over different environments it was reported that g.c.a. effects are relatively more consistent over environments than s.c.a. effects. The parents P3 and P5 were ranked as the best general combiners and the cross P5 × P7 was the good specific combination in both the diallel sets. The graphical analysis suggested that high protein content is governed by dominant genes. Further all the analyses revealed that non-additive variance was mostly responsible for this character. Thus two methods, including biparental mating system among the selected F2/F3 plants from P5×P7 cross; and modified diallel selective mating system for the selected parents with good or average general combining ability were suggested. From these populations the desirable combinations with high protein content and other desirable attributes, be selected which can constitute a future variety.
    Type of Medium: Electronic Resource
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