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The variability in walnut (Juglans regia L.) germplasm from different regions in Iran

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Abstract

Walnut (Juglans regia L) has various microelement and nutritious substances and is one of the important nut crops. In the present research, 89 walnut genotypes were selected from different regions of Iran and evaluated to determine phenotypic diversity and to detect superior trees. The variability was detected for nut and kernel characters. Nut and kernel characters were predominant into the first three principal components and explained most of the total variation. The most of simple correlations were to be found between the variables of nut and kernel sizes. Principal component and cluster analyses indicated a high variation among the studied genotypes. The results indicated that most of genotypes were suitable in terms of consistent kernel percentage and color and can be singled out for cultivation. Furthermore, they could be useful as a parent to be crossed to generating appropriate populations or improve cultivars. In conclusion, two key variables, kernel weight and nut weight, were the important traits accounting for kernel percentage which should be regarded in breeding programs.

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References

  • Akca Y and Ozongun S (2004) Selection of late leafing, late flowering, laterally fruitful walnut (Juglans regia) types in Turkey. NZ J Crop Hortic Sci 337–342

  • Amiri R, Vahdati K, Mohsenipoor S, Mozaffari MR, Leslie C (2010) Correlations between some horticultural traits in walnut. HortScience 45:1690–1694

    Google Scholar 

  • Arzani K, Mansouri Ardakan H, Vezvaei A, Reza Roozban M (2008) Morphological variation among Persian walnut (Juglans regia) genotypes from central Iran. NZ J Crop Hortic Sci 36:159–168

    Article  Google Scholar 

  • Asadian G, Pieber K (2005) Morphological variations in walnut varieties of the Mediterranean regions. Int J Agric Biol 7:71–73

    Google Scholar 

  • Aslantas R (2006) Identification of superior walnut (Juglans regia) genotypes in north-eastern Anatolia, Turkey. NZ J Crop Hortic Sci 34:231–237

    Article  Google Scholar 

  • Atefi J (1993) Evaluation of walnut genotypes in Iran. Acta Horticulturae 311:25–33

    Google Scholar 

  • Atefi J (1997) Study on phenological and pomological characters on walnut promising clones in Iran. Acta Horticulturae 442:101–108

    Google Scholar 

  • Atefi J (2001) Comparison of some promising Iranian walnut clones and foreign varieties. Acta Horticulturae 544:51–59

    Google Scholar 

  • Cosmulescu S (2013) Phenotypic diversity of walnut (Juglans regia L.) in Romania—opportunity for genetic improvement. South West J Hortic Biol Environ 4:117–126

    Google Scholar 

  • Cosmulescu S, Botu M (2012) Walnut biodiversity in South-Western Romania—resource for perspective cultivars. Pak J Bot 44:307–311

    Google Scholar 

  • Cosmulescu S, Botu M, Trandafir I (2010) Mineral composition and physical characteristics of walnut (Juglans regia L.) cultivars originating in Romania. Selçuk Tarım ve Gıda Bilimleri Dergisi 24:33–37

    Google Scholar 

  • Eskandari S, Hassani D, Abdi A (2005) Investigation on genetic diversity of Persian walnut and evaluation of promising genotypes. Acta Horticulturae 705:159–166

    Google Scholar 

  • FAO (2011) FAO production yearbook. Food and Agriculture Organization, Rome

    Google Scholar 

  • Forde HI (1979) Walnuts. In: Janick J, Moore JN (eds) Advances in fruit breeding, 2nd edn. Purdue University Press, West Lafayette, pp 439–455

    Google Scholar 

  • Germain E (1997) Genetic improvement of the Persian walnut (Juglans regia L). Acta Horticulturae 442:21–31

    Google Scholar 

  • Gleeson SK (1982) Heterodichogamy in walnuts: inheritance and stable ratios. Evolution 36:892–902

    Article  Google Scholar 

  • Hammer Ø, Harper DAT and Ryan PD (2001) PAST: paleontological statistics software package for education and data analysis. Palaeontologia Electronica 4(1):9. http://palaeoelectronica.org/2001_1/past/issue1_01.htm

  • Iezzoni AF, Pritts MP (1991) Applications of principal components analysis to horticultural research. HortScience 26:334–338

    Google Scholar 

  • IPGRI (1994) Descriptors for walnut (Juglans spp.). International Plant Genetic Resources Institute, Rome, Italy

  • Kazankaya A, Koyuncu MA, Koyuncu F, Yarilgac T, Sen SM (2001) Some nut properties of walnuts (Juglans regia L.) of Edremit country. Acta Horticulturae 544:97–100

    Google Scholar 

  • Khadivi-Khub A (2014) Regression association analysis of fruit traits with molecular markers in cherries. Plant Syst Evol 300:1163–1173

    Article  CAS  Google Scholar 

  • Khadivi-Khub A, Anjam K (2014) Morphological characterization of Prunus scoparia using multivariate analysis. Plant Syst Evol 300:1361–1372

    Article  Google Scholar 

  • Korac M, Cerovic S, Golosin B, Miletic R (1997) Collecting, evaluation and utilization of walnut (Juglans regia L.) in Yugoslavia. Plant Genet Resour Newsl 111:72–74

    Google Scholar 

  • Krussman G (1986) Manual of cultivated broad-leaved trees and shrubs, vol II. Timber Press, Portland

    Google Scholar 

  • McGranahan GH, Forde HI (1985) Relationship between clone age and selection trait expression in mature walnuts. J Am Soc Hortic Sci 110:692–696

    Google Scholar 

  • McGranahan GH, Leslie C (1990) Walnuts (Juglans). Acta Horticulturae 290:905–951

    Google Scholar 

  • Nicese FP, Hormaza JI, McGranahan GH (1998) Molecular characterization and genetic relatedness among walnut (Juglans regia L.) genotypes based on RAPD markers. Euphytica 101:199–206

    Article  CAS  Google Scholar 

  • Norusis MJ (1998) SPSS/PC advanced statistics. SPSS Inc, Chicago

    Google Scholar 

  • Rohlf FJ (2000) NTSYS-pc Numerical Taxonomy and Multivariate Analysis System. Version 2. 1. Exeter Software, Setauket, NY

  • SAS Institute (1990) SAS® procedure guide, Version 6, 3rd edn. SAS Institute, Cary, NC

    Google Scholar 

  • Sen SM, Tekintas FE (1992) A study on the selection of Adilcevaz walnuts. Acta Horticulturae 317:171–174

    Google Scholar 

  • Sharma SD, Sharma OC (1998) Studies on the variability in nuts of seedling walnut (Juglans regia L.) in relation to the tree age. Fruit Var J 52:20–23

    Google Scholar 

  • Sharma OC, Sharma SD (2001) Genetic divergence in seedling trees of Persian walnut (Juglans regia L.) for various metric nut and kernel characters in Himachal Pradesh. Sci Hortic 88:163–171

    Article  CAS  Google Scholar 

  • Sharma O, Liaqat Ali C, Ghanai NA, Sandeep K (2010) Variability and nut characteristics of seedling walnuts (Juglans regia L.) growing in Ladakh Region of India. Res J Agric Sci 1:219–223

    Google Scholar 

  • Solar A, Stampar F (2003) Genotypic differences in branching pattern and fruiting habit in common walnut (Juglans regia L.). Ann Bot 92:317–325

    Article  PubMed Central  PubMed  Google Scholar 

  • Yarilgac T, Koyuncu F, Koyuncu MA, Kazankaya A, Sen SM (2001) Some promising walnut selections (Juglans regia L.). Acta Horticulturae 544:93–100

    Google Scholar 

  • Zeneli G, Kola H, Dida M (2005) Phenotypic variation in native walnut populations of Northern Albania. Sci Hortic 105:91–100

    Article  Google Scholar 

  • Zhadan VM, Strukov MV (1977) Breeding walnut for fruit size. Plant Breed 47:918–925

    Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources, Arak University, 38156-8-8349, Arak, Iran

    Abdollah Khadivi-Khub

  2. Agriculture College, Department of Forestry and Natural Resources, Pfendler Hall, Purdue University, 715 West State Street, West Lafayette, IN, 47907, USA

    Aziz Ebrahimi

Authors
  1. Abdollah Khadivi-Khub
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  2. Aziz Ebrahimi
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Correspondence to Abdollah Khadivi-Khub.

Additional information

Communicated by J. Gao.

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Khadivi-Khub, A., Ebrahimi, A. The variability in walnut (Juglans regia L.) germplasm from different regions in Iran. Acta Physiol Plant 37, 57 (2015). https://doi.org/10.1007/s11738-015-1806-y

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  • DOI: https://doi.org/10.1007/s11738-015-1806-y

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