Year 2016,
, 120 - 130, 01.06.2016
Mevlut Akcura
Kagan Kokten
,
Aysun Gocmen Akcacık
Seydi Aydogan
References
- Aghaee, M., R. Mohammadi and S. Nabovati. 2010. Agromorphological
characterization of durum wheat accessions
using pattern analysis. Aust J Crop Sci 4 505-514
- Ahmadizadeh, M., H. Shahbazi, M. Valizadeh and M. Zaefizadeh.
2011. Genetic diversity of dururm wheat landraces using
multivariate analysis under normal irrigation and drought
stress conditions. Afr J Agric Res 6(1):2294-2302
- Akcura, M. 2006. Characterization of Turkish winter bread wheat
landraces genetic resource. PhD. Thesis. Selcuk University
Graduate School of Natural and Applied Sciences, p 226. (in
Turkish)
- Akcura, M. 2009. Genetic variability and interrelationship among
grain yield and some quality traits in Turkish winter durum
wheat landraces. Turk J Agric For 33:547–556.
- Akcura, M. and A. Topal. 2006. Phenotypic variability of Turkish
winter bread wheat landraces. J of Plant Res 2:8–16 (in
Turkish).
- Akcura, M. 2011. The relationships of some traits in Turkish
winter bread wheat landraces. Turk J Agric For 35(2):115-
125.
- AACC 2000. Approved Methods of the American Association of
Cereal Chemists, 10th ed. Methods 08-01, 44-15A, 46-11A.
American Association of Cereal Chemists AACC, St Paul,
MN, USA
- Bardsley, D. and I. Thomas. 2005. Valuing local wheat landraces
for agrobiodiversity conservation in Northeast Turkey. Agric
Ecos Environ 106:407–412.
- Belay, G., T. Tesemma, E. Bechere and D. Mitiku. 1995. Natural
and human selection for purplegrain tetraploid wheats in the
Ethiopian highlands. Genet Resour Crop Ev 42(4):387–391.
- Bordes, J., G. Branlard, FX. Oury, G. Charmet and F Balfourier.
2008. Agronomic characteristics, grain quality and flour
rheology of 372 bread wheats in a worldwide core collection.
J Cereal Sci 48: 569–579.
- Brush, S.B. and E. Meng. 1998. Farmers’ valuation and
conservation of crop genetic resources. Genet Resour Crop Ev
45:139–150.
- Chung, O.K., J.B. Ohm, M.S. Caley and B.W. Seabourn. 2001.
Prediction of baking characteristics of hard winter wheat
flours using computer analysed mixograph parameters. Cereal
Chem 78: 493-497.
- Cicek, M.S., P.S. Chen, S.M. and G.R. Maroof Buss. 2006.
Interrelationships among agronomic and seed quality traits in
an interspecific soybean recombinant inbred population. Crop
Sci 46:1253-1259.
- DeLacy, I.H., M. Cooper and K.E. Basford. 1996. Relationships
among analytical methods used to study genotype-byenvironment
interactions and evaluation of their impact on
response to selection. In ‘Genotype-by-environment
interaction’. (Eds MS Kang, HG Gauch) pp. 51-84. CRC
Press: Boca Raton, FL.
- DeLacy, I.H., B. Skovmand and J. Huerta. 2000. Characterization
of Mexican wheat landraces using agronomically useful
attributes. Genet Resour Crop Ev 47: 591-602.
- Dobraszczyk, B.J. and B.P. Salmanowicz. 2008. Comparison of
predictions of baking volume using large deformation
rheological properties. J Cereal Sci 47(2) 292-301.
- Dobraszczyk, B.J. and J.D. Schofield. 2002. Rapid assessment
and prediction of wheat and gluten baking quality with the 2-
g direct drive mixograph using multivariate statistical
analysis. Cereal Chem 79: 607-612.
- Flores, F., M.T. Moreno and J.I. Cubero. 1998. A comparison of
univariate and multivariate methods to analyze G x E
interaction. Field Crops Res 56: 271-286.
- Gabriel, K.R. 1971. The bi-plot-graphical display of matrices with
application to principal component analysis. Biometrika 58:
453-467.
- Gokgol, M., 1939. Turkish wheat. Istanbul (in Turkish).
- Harch, B.D., K.E. Basford, I.H. DeLacy, P.K. Lawrence and A.
Cruickshank. 1995. Patterns of diversity in fatty acid
composition in the Australian groundnut germplasm
collection. Genet Resour Crop Ev 42: 234-256.
- Hruskova, M. and F. Oldrich. 2003. Prediction of wheat and flour
Zeleny sedimentation value using NIR technique. Czech J
Food Sci 21(3): 91-96.
- Ilker, E., F.A. Tonk, O. Caylak, M. Tosun, I. Ozmen. 2009.
Assessment of genotype x environment interactions for grain
yield in maize hybrids using AMMI and GGE biplot analyses.
Turk J Field Crops 14(2): 123-135.
- Ilker, E., H. Geren, R. Unsal, I. Sevim, F.A. Tonk and M. Tosun.
2011. AMMI-biplot analysis of yield performances of bread
wheat cultivars grown at different locations. Turk J Field
Crops 16(1): 64-68.
- IRRI, 2013. International Rice Research Institute. CROPSTAT
software 7.0.2.03 for Windows. Manila, Philippine.
http://bbi.irri.org/products.
- Jahufer, M.Z.Z., M. Cooper and B.D. Harch. 1997. Pattern
analysis of the diversity of morphological plant attributes and
herbage yield in a world collection of white clover (Trifolium
repens L.) germplasm characterized in a summer moisture
stress environment of Australia. Genet Resour Crop Ev 44:
289-300
- Jaradat, A.A. 2006. Phenotypic divergence in the meta-population
of the Hourani wheat landrace. J Food Agric Env 4:186-191.
Kara, B. and Z. Akman. 2007. Correlation and path coefficient
analysis in the local wheat ecotypes. J Natur and Applied Sci
11(3):219–224 (in Turkish).
- Karagoz, A. 2013. Wheat Landraces of Turkey. Emir J Food
Agric 26 (2): 93-118.
- Karcicio, M. and A. Izbirak. 2003. Isozymes variations in some
Aegilops L. and Triticum L. species collected from Central
Anatolia. Turk J Bot 27:433–440.
- Kempton, R.A. 1984. The use of bi-plots in interpreting variety
by environment interactions. J Agric Sci 103: 123-135.
- Konopka, I., L. Fornal, D. Abramczyk, J. Rothkaehl and D.
Rotkiewicz. 2004. Statistical evaluation of different
technological and rheological tests of Polish wheat varieties
for bread volume prediction. Int J Food Sci Tech 39(1): 11-
20.
- Lipkovich, I.A. and E.P. Smith. 2002. Biplot and Singular Value
Decomposition Macros for Excel. J Stat Softw 7(5):1-15.
- Martinant, J.P., Y. Nicolas, A. Bouguennec, Y. Popineau, L.
Saulnier and G. Branlard. 1998. Relationships between
mixograph parameters and indices of wheat grain quality. J
Cereal Sci 27: 179–189.
- Miles, C.W., A., Van Biljon, W.M., Otto and M.T. Labuschagne.
2013. Grain and milling characteristics and their relationship
with selected mixogram parameters in hard red bread wheat
Int J Food Sci and Tech 39:11–20.
- Morris, J.B. 2009. Characterization of sesame (Sesamum indicum
L.) germplasm regenerated in Georgia, USA. Genet Resour
Crop Ev 56: 925-936.
- Neacsu, A., G. Stanciu, N.N. Sãulescu. 2009. Most suitable
mixing parameters for use in breeding bread wheat for
processing quality. Cereal Res Commun 37: 83-92.
130
- Ozbek, O. 2013. Turkish wheat landraces: Population structure
and function. Emir Jour of Food and Agric 26(2): 137-148.
- Ozbek, O., B.G. Taskin, S.K. San, V. Eser and O. Arslan. 2011.
Gliadin polymorphism in Turkish cultivated emmer wheat
(Triticum turgidum L. ssp. dicoccon (Schrank) Thell.)
landraces. Plant Syst Evol 296(1–2):121-135
- Ozbek, O., B.G. Taskin, S.K. San, V. Eser and O. Arslan. 2012.
High-molecular-weight glutenin subunit variation in Turkish
emmer wheat [Triticum turgidum L. ssp. dicoccon (Schrank)
Thell.] landraces. Plant Syst Evol 298:1795–1804
- Ozkan, H., Y. Avivi and M. Feldman. 1998. Variation of high
molecular weight glutenin subunits in durum landraces of
Turkey. In: A. A. Jaradat (Ed.) Triticeae III. Science Pub Inc.
- Peskircioglu, M., S., Sehirali and M. Ozgen. 1998. Identification
of wild diploid wheats of Turkey by gliadin electrophoresis.
The Proceeding of International Symposium on in situ
Conservation of Plant Genetic Diversity pp. 99–107.
- Peterson, C.J., R.A. Graybosch, P.S. Baenziger and A.W.
Grombacher. 1992. Genotype and environment effects on
quality characteristics of hard winter wheat. Crop Sci 32: 98-
103.
- Peterson, D.M., D.M. Wesenberg, D.E. Burrup and C.A.
Erickson. 2005. Relationships among Agronomic Traits and
Grain Composition in Oat Genotypes Grown in Different
Environments. Crop Sci 45:1249-1255.
- Rakszegi, M., D. Boros, C. Kuti, L. Láng, Z. Bedo and P.R.
Shewry. 2008. Composition and end-use quality of 150 wheat
lines selected for the HEALTHGRAIN diversity screen. J Agr
Food Chem 56(21):9750-9757.
- Rosso, B.S. and E.M. Pagano. 2001. Collection and
characterization of naturalized populations of white clover
(Trifolium repens L.) in Argentina. Genet Resour Crop Ev 48:
513-517.
- Rubio, J., J.I. Cubero, L.M. Martin, M.J. Suso and F. Flores. 2004.
Biplot analysis of trait relations of white lupin in Spain.
Euphytica 135: 217-224.
- Sahin M., A. Gocmen Akcacik, S. Aydogan, S. Taner and R.
Ayranci. 2011. Determination of relationships between bread
volume and some physicochemical and rheological properties
of bread wheat flour. J Field Crops Central Res Ins 20(1):6-
11(in Turkish).
- Sahin, M., A. Akcacik, S. Aydogan, Y. Kaya, B. Demir, H.
Onmez and S. Taner. 2013. Determination of relationships
between bread volume and some physicochemical and
rheological properties of bread wheat flour. J Field Crops
Central Res Ins 22 (1):13-19 (in Turkish).
- Sayaslan, A., M. Koyuncu, A. Yıldırım, T. Eserkaya Gulec, O.
Ates Sonmezoglu and N. Kandemir. 2012. Some quality
characteristics of selected durum wheat (Triticum durum)
landraces. Turk J Agric For 36:749–756.
- Walker, C.E. and J.L. Hazelton. 1996. Dough rheological tests.
Cereal Foods World 41: 23-28
- Walker, C.E., A.E. Walker and J.L. Hazelton 1997.
Computerising the mixograph: Data collection and analysis.
Pages 39-43 in: The mixograph handbook. 1st edition. C.E.
- Walker, J.L. Hazelton and M.D. 50 Shogren, eds. National
Manufacturing Division, TMCO, Lincoln, NE 68508-2935,
USA.
- Williams, W.T. 1976. Pattern analysis in agricultural science.
Amsterdam. Elsevier Scientific Publishing Company.
- Williams P.F., J. Haremein, H. Nakkoul, S. Rihawi. 1986. Crop
quality evaluation methods and guidelines. ICARDA Aleppo,
Syria.
- Yan, W. and M.S. Kang. 2003. GGE Biplot Analysis: A graphical
tool for breeders, geneticists, and agronomists. CRC Press,
Boca Raton, FL.
- Yan, W. and J. Fregeau-Reid. 2008. Breeding line selection based
on multiple traits. Crop Sci 48: 417-423.
- Yan, W. 2014. Crop variety trials: Data management and analysis.
John Wiley and Sons. pp. 349.
PATTERN ANALYSIS OF TURKISH BREAD WHEAT LANDRACES AND CULTIVARS FOR GRAIN AND FLOUR QUALITY
Year 2016,
, 120 - 130, 01.06.2016
Mevlut Akcura
Kagan Kokten
,
Aysun Gocmen Akcacık
Seydi Aydogan
Abstract
This research was carried out to characterize both 200 pure lines selected from Turkish bread wheat landraces
and 25 Turkish bread wheat cultivars based on 3 grain quality traits [thousand kernel weight (TKW), protein
content (PC), Zeleny sedimentation test (ZSDS)] and 5 mixograph parameters. Univariate and Multivariate
(clustering and ordination) techniques were used to investigate the diversity present among the pure lines and
cultivars. Both cluster and ordination analyses suggested that there were ten groups of studied genotypes.
Applying genotype-by-trait (GT) biplot analysis to the multiple quality trait data revealed that GT-biplot
graphically displayed the interrelationships among traits and facilitated visual comparison of pure lines and
selection. The results also showed that, based on the quality traits, the pure lines in different groups were
belonged to different provinces of Turkey. They were also proved to be highly diverse for 8 quality trait values
(both mixograph and grain quality) to breeders and end-users. Especially most of the pure lines had higher PC,
midline peak value of mixogram (MPV), midline time x = 8 min integral of mixogram (MTxI) and ZSDS values
than some of the cultivars. Also, our results were very contributive in selection of precious pure lines for further
breeding programs.
References
- Aghaee, M., R. Mohammadi and S. Nabovati. 2010. Agromorphological
characterization of durum wheat accessions
using pattern analysis. Aust J Crop Sci 4 505-514
- Ahmadizadeh, M., H. Shahbazi, M. Valizadeh and M. Zaefizadeh.
2011. Genetic diversity of dururm wheat landraces using
multivariate analysis under normal irrigation and drought
stress conditions. Afr J Agric Res 6(1):2294-2302
- Akcura, M. 2006. Characterization of Turkish winter bread wheat
landraces genetic resource. PhD. Thesis. Selcuk University
Graduate School of Natural and Applied Sciences, p 226. (in
Turkish)
- Akcura, M. 2009. Genetic variability and interrelationship among
grain yield and some quality traits in Turkish winter durum
wheat landraces. Turk J Agric For 33:547–556.
- Akcura, M. and A. Topal. 2006. Phenotypic variability of Turkish
winter bread wheat landraces. J of Plant Res 2:8–16 (in
Turkish).
- Akcura, M. 2011. The relationships of some traits in Turkish
winter bread wheat landraces. Turk J Agric For 35(2):115-
125.
- AACC 2000. Approved Methods of the American Association of
Cereal Chemists, 10th ed. Methods 08-01, 44-15A, 46-11A.
American Association of Cereal Chemists AACC, St Paul,
MN, USA
- Bardsley, D. and I. Thomas. 2005. Valuing local wheat landraces
for agrobiodiversity conservation in Northeast Turkey. Agric
Ecos Environ 106:407–412.
- Belay, G., T. Tesemma, E. Bechere and D. Mitiku. 1995. Natural
and human selection for purplegrain tetraploid wheats in the
Ethiopian highlands. Genet Resour Crop Ev 42(4):387–391.
- Bordes, J., G. Branlard, FX. Oury, G. Charmet and F Balfourier.
2008. Agronomic characteristics, grain quality and flour
rheology of 372 bread wheats in a worldwide core collection.
J Cereal Sci 48: 569–579.
- Brush, S.B. and E. Meng. 1998. Farmers’ valuation and
conservation of crop genetic resources. Genet Resour Crop Ev
45:139–150.
- Chung, O.K., J.B. Ohm, M.S. Caley and B.W. Seabourn. 2001.
Prediction of baking characteristics of hard winter wheat
flours using computer analysed mixograph parameters. Cereal
Chem 78: 493-497.
- Cicek, M.S., P.S. Chen, S.M. and G.R. Maroof Buss. 2006.
Interrelationships among agronomic and seed quality traits in
an interspecific soybean recombinant inbred population. Crop
Sci 46:1253-1259.
- DeLacy, I.H., M. Cooper and K.E. Basford. 1996. Relationships
among analytical methods used to study genotype-byenvironment
interactions and evaluation of their impact on
response to selection. In ‘Genotype-by-environment
interaction’. (Eds MS Kang, HG Gauch) pp. 51-84. CRC
Press: Boca Raton, FL.
- DeLacy, I.H., B. Skovmand and J. Huerta. 2000. Characterization
of Mexican wheat landraces using agronomically useful
attributes. Genet Resour Crop Ev 47: 591-602.
- Dobraszczyk, B.J. and B.P. Salmanowicz. 2008. Comparison of
predictions of baking volume using large deformation
rheological properties. J Cereal Sci 47(2) 292-301.
- Dobraszczyk, B.J. and J.D. Schofield. 2002. Rapid assessment
and prediction of wheat and gluten baking quality with the 2-
g direct drive mixograph using multivariate statistical
analysis. Cereal Chem 79: 607-612.
- Flores, F., M.T. Moreno and J.I. Cubero. 1998. A comparison of
univariate and multivariate methods to analyze G x E
interaction. Field Crops Res 56: 271-286.
- Gabriel, K.R. 1971. The bi-plot-graphical display of matrices with
application to principal component analysis. Biometrika 58:
453-467.
- Gokgol, M., 1939. Turkish wheat. Istanbul (in Turkish).
- Harch, B.D., K.E. Basford, I.H. DeLacy, P.K. Lawrence and A.
Cruickshank. 1995. Patterns of diversity in fatty acid
composition in the Australian groundnut germplasm
collection. Genet Resour Crop Ev 42: 234-256.
- Hruskova, M. and F. Oldrich. 2003. Prediction of wheat and flour
Zeleny sedimentation value using NIR technique. Czech J
Food Sci 21(3): 91-96.
- Ilker, E., F.A. Tonk, O. Caylak, M. Tosun, I. Ozmen. 2009.
Assessment of genotype x environment interactions for grain
yield in maize hybrids using AMMI and GGE biplot analyses.
Turk J Field Crops 14(2): 123-135.
- Ilker, E., H. Geren, R. Unsal, I. Sevim, F.A. Tonk and M. Tosun.
2011. AMMI-biplot analysis of yield performances of bread
wheat cultivars grown at different locations. Turk J Field
Crops 16(1): 64-68.
- IRRI, 2013. International Rice Research Institute. CROPSTAT
software 7.0.2.03 for Windows. Manila, Philippine.
http://bbi.irri.org/products.
- Jahufer, M.Z.Z., M. Cooper and B.D. Harch. 1997. Pattern
analysis of the diversity of morphological plant attributes and
herbage yield in a world collection of white clover (Trifolium
repens L.) germplasm characterized in a summer moisture
stress environment of Australia. Genet Resour Crop Ev 44:
289-300
- Jaradat, A.A. 2006. Phenotypic divergence in the meta-population
of the Hourani wheat landrace. J Food Agric Env 4:186-191.
Kara, B. and Z. Akman. 2007. Correlation and path coefficient
analysis in the local wheat ecotypes. J Natur and Applied Sci
11(3):219–224 (in Turkish).
- Karagoz, A. 2013. Wheat Landraces of Turkey. Emir J Food
Agric 26 (2): 93-118.
- Karcicio, M. and A. Izbirak. 2003. Isozymes variations in some
Aegilops L. and Triticum L. species collected from Central
Anatolia. Turk J Bot 27:433–440.
- Kempton, R.A. 1984. The use of bi-plots in interpreting variety
by environment interactions. J Agric Sci 103: 123-135.
- Konopka, I., L. Fornal, D. Abramczyk, J. Rothkaehl and D.
Rotkiewicz. 2004. Statistical evaluation of different
technological and rheological tests of Polish wheat varieties
for bread volume prediction. Int J Food Sci Tech 39(1): 11-
20.
- Lipkovich, I.A. and E.P. Smith. 2002. Biplot and Singular Value
Decomposition Macros for Excel. J Stat Softw 7(5):1-15.
- Martinant, J.P., Y. Nicolas, A. Bouguennec, Y. Popineau, L.
Saulnier and G. Branlard. 1998. Relationships between
mixograph parameters and indices of wheat grain quality. J
Cereal Sci 27: 179–189.
- Miles, C.W., A., Van Biljon, W.M., Otto and M.T. Labuschagne.
2013. Grain and milling characteristics and their relationship
with selected mixogram parameters in hard red bread wheat
Int J Food Sci and Tech 39:11–20.
- Morris, J.B. 2009. Characterization of sesame (Sesamum indicum
L.) germplasm regenerated in Georgia, USA. Genet Resour
Crop Ev 56: 925-936.
- Neacsu, A., G. Stanciu, N.N. Sãulescu. 2009. Most suitable
mixing parameters for use in breeding bread wheat for
processing quality. Cereal Res Commun 37: 83-92.
130
- Ozbek, O. 2013. Turkish wheat landraces: Population structure
and function. Emir Jour of Food and Agric 26(2): 137-148.
- Ozbek, O., B.G. Taskin, S.K. San, V. Eser and O. Arslan. 2011.
Gliadin polymorphism in Turkish cultivated emmer wheat
(Triticum turgidum L. ssp. dicoccon (Schrank) Thell.)
landraces. Plant Syst Evol 296(1–2):121-135
- Ozbek, O., B.G. Taskin, S.K. San, V. Eser and O. Arslan. 2012.
High-molecular-weight glutenin subunit variation in Turkish
emmer wheat [Triticum turgidum L. ssp. dicoccon (Schrank)
Thell.] landraces. Plant Syst Evol 298:1795–1804
- Ozkan, H., Y. Avivi and M. Feldman. 1998. Variation of high
molecular weight glutenin subunits in durum landraces of
Turkey. In: A. A. Jaradat (Ed.) Triticeae III. Science Pub Inc.
- Peskircioglu, M., S., Sehirali and M. Ozgen. 1998. Identification
of wild diploid wheats of Turkey by gliadin electrophoresis.
The Proceeding of International Symposium on in situ
Conservation of Plant Genetic Diversity pp. 99–107.
- Peterson, C.J., R.A. Graybosch, P.S. Baenziger and A.W.
Grombacher. 1992. Genotype and environment effects on
quality characteristics of hard winter wheat. Crop Sci 32: 98-
103.
- Peterson, D.M., D.M. Wesenberg, D.E. Burrup and C.A.
Erickson. 2005. Relationships among Agronomic Traits and
Grain Composition in Oat Genotypes Grown in Different
Environments. Crop Sci 45:1249-1255.
- Rakszegi, M., D. Boros, C. Kuti, L. Láng, Z. Bedo and P.R.
Shewry. 2008. Composition and end-use quality of 150 wheat
lines selected for the HEALTHGRAIN diversity screen. J Agr
Food Chem 56(21):9750-9757.
- Rosso, B.S. and E.M. Pagano. 2001. Collection and
characterization of naturalized populations of white clover
(Trifolium repens L.) in Argentina. Genet Resour Crop Ev 48:
513-517.
- Rubio, J., J.I. Cubero, L.M. Martin, M.J. Suso and F. Flores. 2004.
Biplot analysis of trait relations of white lupin in Spain.
Euphytica 135: 217-224.
- Sahin M., A. Gocmen Akcacik, S. Aydogan, S. Taner and R.
Ayranci. 2011. Determination of relationships between bread
volume and some physicochemical and rheological properties
of bread wheat flour. J Field Crops Central Res Ins 20(1):6-
11(in Turkish).
- Sahin, M., A. Akcacik, S. Aydogan, Y. Kaya, B. Demir, H.
Onmez and S. Taner. 2013. Determination of relationships
between bread volume and some physicochemical and
rheological properties of bread wheat flour. J Field Crops
Central Res Ins 22 (1):13-19 (in Turkish).
- Sayaslan, A., M. Koyuncu, A. Yıldırım, T. Eserkaya Gulec, O.
Ates Sonmezoglu and N. Kandemir. 2012. Some quality
characteristics of selected durum wheat (Triticum durum)
landraces. Turk J Agric For 36:749–756.
- Walker, C.E. and J.L. Hazelton. 1996. Dough rheological tests.
Cereal Foods World 41: 23-28
- Walker, C.E., A.E. Walker and J.L. Hazelton 1997.
Computerising the mixograph: Data collection and analysis.
Pages 39-43 in: The mixograph handbook. 1st edition. C.E.
- Walker, J.L. Hazelton and M.D. 50 Shogren, eds. National
Manufacturing Division, TMCO, Lincoln, NE 68508-2935,
USA.
- Williams, W.T. 1976. Pattern analysis in agricultural science.
Amsterdam. Elsevier Scientific Publishing Company.
- Williams P.F., J. Haremein, H. Nakkoul, S. Rihawi. 1986. Crop
quality evaluation methods and guidelines. ICARDA Aleppo,
Syria.
- Yan, W. and M.S. Kang. 2003. GGE Biplot Analysis: A graphical
tool for breeders, geneticists, and agronomists. CRC Press,
Boca Raton, FL.
- Yan, W. and J. Fregeau-Reid. 2008. Breeding line selection based
on multiple traits. Crop Sci 48: 417-423.
- Yan, W. 2014. Crop variety trials: Data management and analysis.
John Wiley and Sons. pp. 349.