Abstract
The pecan, Carya illinoinensis (Wangenh.) K. Koch, is the most economically important member of the Carya genus and is the most valuable native North American nut crop. The Carya genus is a member of the walnut family, Juglandaceae, and comprises 20 species. Over 98% of the world’s annual pecan production is produced in the southern USA and northern Mexico. Pecan is a diploid (n = 16), monoecious, long-lived tree species. Owing to its heterodichogamy, pecan is primarily cross-pollinated, resulting in high heterozygosity with severe inbreeding depression when selfed. Establishment of commercial pecan orchards during the nineteenth century was mainly by planting open-pollinated nuts from mother trees possessing desirable characteristics. These orchards consist of trees with widely varying production and quality attributes due to the heterozygosity of pecan. Vegetative propagation became popular ca. 1900, and most newly planted orchards consist of a chosen combination of clonally propagated superior varieties. Clonally derived orchards are more productive and produce nuts of much higher quality than remaining native or seedling orchards. Thirteen Carya species, including pecan, are native to the USA. The National Clonal Germplasm Repository for Pecans and Hickories which preserves over 300 pecan cultivars, landraces, and species accessions was established in 1984 to describe and preserve this underutilized resource. Objectives of pecan breeding are higher yields and nut quality, and resistance to diseases and insects. Pecans are attacked by a wide range of disease and insect pests causing substantial losses to the crop. Various levels of resistance to scab and aphids are available in improved pecan varieties, and breeding programs are focusing on developing new cultivars with high levels of resistance in combination with good horticultural attributes. Another major effort in pecan breeding is the development of earlier maturing cultivars with the potential to bear more consistently over years.
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References
Allard, R. W. 1966. Principles of plant breeding. John Wiley and Sons. N.Y.
Beedanagari, S. R., S. K. Dove, B. W. Wood, and P. J. Conner. 2005. A first linkage map of pecan cultivars based on RAPD and AFLP markers. J. Applied Genetics 10(6):1127–1137.
Bettencourt, E. J. and J. Konopka. 1989. Directory of germplasm collections. 6. II. Temperate fruits and tree nuts. Int. Board Plant Genetic Resources, Rome.
Boethel, D. J. and R. D. Eikenbary. 1979. Pecan weevil: Seasonal emergence of larvae from three pecan cultivars in Oklahoma. J. Ga. Ent. Soc. 14:75–78.
Boethel, D. J., W. G. Grovenburg, R. D. Eikenbary, and R. W. McNew. 1976. Infestation levels of pecan leaf phylloxera, Phylloxera notabilis Pergande, on pecan cultivars. Env. Ent.5:637–639.
Byford, R. 2005. Pecan varieties for New Mexico. N.M. State Univ. Guide H-639.
Calcote, V. R. 1983. Southern pecan leaf phylloxera (Homopotera: phylloxeridae): clonal resistance and technique for evaluation. Env. Ent. 12(3):916–918.
Calcote, V. R. and D. E. Hyder. 1980. Pecan cultivars tested for resistance to pecan phylloxera. J. Ga. Ent. Soc. 15(4):428–431.
Calcote, V. R., G. D. Madden, and H. D. Petersen. 1976. Pecan cultivars resistant to hickory shuckworm. Proc. N. Nut Growers Assn. 67:19–21.
Carpenter, T. L., W. W. Neel, and P. A. Hedin. 1979. A preliminary study of host plant resistance of pecan to the blackmargined aphid, Monellia caryella (Fitch). Pecan Quart. 13(3):35–37.
Cerna-Cortes, J., J. Simpson, O. Martinez, and R. Martinez-Peniche. 2003. Measurement of genetic diversity of native pecan [Carya illinoensis (Wangenh.) K. Koch] populations established in Central Mexico and correlation with dichogamous flowering using AFLP. Food, Agr. & Env. 1:168–173.
Cole, J.R. and A. C. Gossard. 1956. Increased virulence of scab (Cladosporium effusum Wint. Demaree) on ‘Stuart’ pecan in Mississippi and its presence. Plant Disease Reporter 40:1120.
Conner, P.J. 1999. The Georgia pecan breeding program. Proc. Southeastern Pecan Growers Assn. 92:77–80.
Conner, P. and R. Worley. 2000. Alternate bearing intensity of pecan cultivars. HortScience 35:1067–1069.
Conner P, and B. Wood. 2001. Identification of pecan cultivars and their genetic relatedness as determined by Randomly Amplified Polymorphic DNA analysis. J. Amer. Soc. Hort. Sci. 126: 474–480.
Conner, P.J. 2002. A detached leaf technique for studying race-specific resistance to Cladosporium caryigenum in pecan. J. Amer. Soc. Hort. Sci. 127:781–785.
Conner, P.J. 2003. Breeding for scab resistance. Proc. Southeastern Pecan Growers Assn. 96:115–123.
Conner, P.J. and K.L. Stevenson. 2004. Pathogenic variation of Cladosporium caryigenum isolates and corresponding differential resistance in pecan. HortScience 39:553–557.
Converse, R. H. 1960. Physiologic specialization of Fusicladium effusum and its evaluation in vitro. Phytopathology 50:527–531.
Corbett, L., H. Gould, C. Hunn, T. Robinson, G. Darrow, G. Husmann, C. Reed, D. Shoemaker, J. Beattie, W. Beattie, J. Kincer, and L. Flohr. 1926. Fruit and Vegetable Production, The Pecans, p. 286–290. In: G.W. Hill (ed.). Yearbook of the USDA, 1925, Gov. Print. Off., Washington, D.C.
Crane, H. L., C. A. Reed, and M. N. Wood. 1937. Nut Breeding. USDA Yrbk. of Agr. 1937:827–889.
Criswell, J. T., D. J. Boethel, R. D. Morrison, and R. D. Eikenbary. 1975. Longevity, puncturing of nuts and ovipositional activities by the pecan weevil on three cultivars of pecan. J. Econ. Ent. 68:173–177.
Demaree, J. B. and J. R. Cole. 1929. Behavior of Cladosporium effusum (Wint.) Demaree on some varieties of Pecan. J. Agric. Res. 38:363–370.
Dutcher, J.D., R.E. Worley, P. Conner, and S.E. Dove. 2001. Pecan variety differences in the incidence of hemipteran kernel damage. J. Entomol. Sci. 36:445–452.
Ellis, H.C., P. Bertrand, and T.F. Crocker. 2000. 2000 Georgia pecan pest management guide. Univ. of Ga. Coop. Exten. Serv. Bull. 841.
Florkowski, W.J., T.F. Crocker, and G. Humphries. 1999. Commercial pecan tree inventory, Georgia, 1997. The University of Georgia, College of Agriculture and Environmental Sciences, Ga. Exp. Stations Research Report 678. Athens, GA.
Forkert, C. 1914. Twelve years’ experience in hybridizing pecans. Proc. Natl. Nut Growers Assn. Bul. 13:28–30.
Gentry, C. R., J. S. Smith, J. A. Payne, E. J. Wehunt, J. M. Wells, and N.E. McGlohon. 1976. The first year of an integrated program for pest management on pecans. Proc. SE Pecan Growers Assn. 69:125–132.
Gill, J. B. 1917. Important pecan insects and their control. USDA Farmer’s Bul. 834. 48pp.
Goff, W.D., L. Campbell, T.E. Thompson, J.S. Bannon, and A.J. Latham. 1993. Scab occurrence on pecan clones in Alabama in a year of high disease incidence. Fruit Var. J. 47:47–51.
Goff, W.D., M. Nesbitt, R. Mullenax, F. Rasberry, and B. Graves. 1998. Pest-resistant cultivars as a way to reduce input costs. Pecan South. 31(7):6–9.
Goff, W.D., M.L. Nesbitt, and C.L. Browne. 2003. Incidence of scab and foliage condition on pecan cultivars grown without fungicide or insecticide sprays in a humid region. HortTechnology 13:381–384.
Gossard, A. C. 1941. Rooting pecan stem tissue by layering. Proc. Amer. Soc. Hort. Sci. 38:213–2 14.
Gottwald, T. R. 1982. Taxonomy of the pecan scab fungus Cladosporium caryigenum. Mycologia 74:382–390.
Grauke L. J, M. J. Iqbal, A. S. Reddy, and T. E. Thompson. 2003. Developing microsatellite DNA markers in pecan. J. Amer. Soc. Hort. Sci. 128:374–380.
Grauke L.J., H. Price, and J. Johnston. 2001. Genome size of pecan as determined by flow cytometry. HortScience 36:814.
Grauke, L. J. and T. E.Thompson. 1996. Pecans and hickories. In: Janick, J. A. and Moore, J. N. (ed.). Fruit Breeding--III Nuts. pp. 185–239. John Wiley and Sons, Inc.
Grauke, L. J., T. E. Thompson, and Marquard, R. D. 1995. Evaluation of pecan germplasm collections, designation of a preliminary core subset, and suggestions for in situ conservation of native pecan populations. HortScience 30(5):950–954.
Guillebeau, P. 1998. What to do about the food quality protection act? Or how can we protect the pesticides we need?. Proc. Southeastern Pecan Growers Assn. 91:65–69.
Gustafson, W. A. 1978. A propagation technique for rooting adult phase pecan, Carya illinoinensis (Wang.) K. Koch, stem cuttings. Ph. D. dissertation, Tex. A&M Univ., College Station, Tex.
Halbert, H. A. 1909. Should pecans be planted in west Texas? Proc. Tex. Nut Growers’ Assoc. Twelfth Tex. Farmers’ Congress. Tex. Dept. of Agric. Bul. Number 10. Austin.
Hansen, K. C. and J. E. Lazarte. 1984. In vitro propagation of pecan seedlings. HortScience 19:237–239.
Hansen, C. D., H. W. VanCleave, and J. J. Welch. 1970. Comparison of hickory shuckworm infestation rates of seven named varieties in central Texas. p. 42–43. In: Pecan Research 1965–1969, Tex. Agr. Expt. Sta. Prog. Rpt. 2718.
Hunter, R. E., T. E. Thompson, and R. S. Sanderlin. 1986. Control of pecan diseases through genetic resistance. Proc. SE Pecan Growers Assn. 79:51–54.
Kaakeh, W. and J.D. Dutcher. 1994. Probing behavior and density of Monelliopsis pecanis, Monellia caryella, and Melanocallis caryaefoliae (Homopter: Aphidae) on pecan cultivars. J. Econ. Ent. 87:951–956.
KenKnight, G. E. 1968a. Resistance of pecan to disease. Proc. SE Pecan Growers Assn. 61:168–173.
KenKnight, G. E. 1968b. Resistance of pecan to scab and bunch disease in Louisiana. Plant Dis. Rptr. 52 (4):307–309.
KenKnight, G. E. 1970. Pecan varieties “happen” in Jackson County, Mississippi. Pecan Quart. 4(3):6–7.
Marquard R. 1987. Isozyme inheritance, polymorphism, and stability of malate dehydrogenase and phosphoglucose isomerase in pecan. J. Amer. Soc. Hort. Sci. 112:717–721.
Marquard R. 1989. Rare allozymes of malate dehydrogenase in pecan. HortScience 24:156.
Marquard R. 1991. Inheritance of phosphoglucomutase isozymes in pecan. HortScience 26:1213–1214.
Marquard R, Grauke L, Thompson T, and R. Janos. 1995. Identifying pecan cultivars by isozymes and inheritance of leucine aminopeptidase. J. Amer. Soc. Hort. Sci. 120:661–666.
McEachern, G. R. 1973. The influence of propagation techniques, the rest phenomenon, and juvenility on the propagation of pecan, Carya illinoinensis (Wang.) K. Koch, stem cuttings. Ph.D. Diss., Texas A&M Univ., College Station.
McEachern, G. and L. Stein. 1997. Pecan Varietes for Texas, p. III-1 – III-13. In: R. Lyle (ed.). Texas Pecan Handbook. Texas Agr. Ext. Serv., College Station, Tex.
McGranahan, G. H., C. A. Leslie, A. M. Dandekar, S. L. Uratsu, and I. E. Yates. 1993. Transformation of pecan and regeneration of transgenic plants. Plant Cell Reports 12:634–638.
McHatton, T. H. 1957. The history, distribution and naming of the pecan (Hicoria pecan). Proc. SE Pecan Growers Assn. 50:10–34. McLean, R. W. 1988. The effect of artificial drying temperature on the quality of early harvested pecan kernels. MS Thesis. Tex. A&M Univ., College Station.
Merkle, S.A., H.Y. Wetzstein, and H.E. Sommer. 1987. Somatic embryogenesis in tissue cultures of pecan. HortScience 22:128–130.
Moznette, G. F. 1948. The pecan weevil and latest developments in control. Proc. SE Pecan Growers Assn. 41:79–82.
Moznette, G. F., C. B. Nickels, W. C. Pierce, T. L. Bissell, J. B. Demaree, J. R. Cole, H. E. Parson, and J. R. Large. 1940. Insects and diseases of the pecan and their control. USDA Farmer’s Bul. No. 1829.
Neel, W. W., C. H. Graves, Jr., and R. E. Coats. 1976. Pecan insect control test in 1975 with emphasis on yellow aphids, spittle-bugs, and weevils. Pecan S. 3:(4):430–435.
Obeidy, A.A. and M.A.L. Smith. 1993. Organogenesis from mature pecan cotyledons and embryonic axes. HortScience 28:213–215.
Payne, J. A., H. L. Malstrom, and G. E. KenKnight. 1979. Insect pests and diseases of the pecan. USDA Agr. Rev. and Manuals. ARM-5-5.
Pena, J. G. 2007. Trends in pecan production, consumption and trade. Texas Pecan Handbook. L. A. Stein and G. R. McEachern, ed. Texas A&M U. College Station.
Pokorny, F. A. and D. Sparks. 1967. Propagating Stuart pecans by air-layerage. Proc. SE Pecan Growers Assn. 60:120–123.
Romberg, L. D. 1942. Use of nurse seedlings in propagating the pecan from stem cuttings. Proc. Amer. Soc. Hort. Sci. 40:298–300.
Romberg, L. D. 1967. Clonal pecan rootstocks. Proc. Tex. Pecan Growers Assn. 46:72–75.
Romberg, L. D. and C. L. Smith. 1950. Progress report on the breeding of new pecan varieties. Proc. Texas Pecan Growers Assoc. 29:12–21.
Ruter B., J. Hamrick, and B. W. Wood. 2000. Genetic diversity within provenance and cultivar germplasm collections and wild populations of pecan. J Hered 90:521–528.
Ruter B,, J. Hamrick, and B. W. Wood. 2001. Outcrossing rates and relatedness estimates in pecan populations. J Hered 91:72–75.
Sparks, D. and I.E. Yates. 1991. Pecan cultivar susceptibility to sooty mold related to leaf surface morphology. J. Amer. Soc. Hort. Sci. 116:6–9.
Sparks, D. 1992. Pecan Cultivars: The Orchards Foundation. Pecan Production Innovations. Watkinsville, GA.
Stevenson, K.L. 2005. Fungicide sensitivity and performance on DMI fungicides for scab control. Proc. Southeastern Pecan Growers Assn. 98:93–97.
Stein, L. A. 2007. Pecan crop load management. Texas Pecan Handbook. Tex. Cooperative Extension pp. 112–114.
Taylor, W.A. 1906. Promising new fruits. Pecans, p. 504–508. In: G.W. Hill (ed.). Yearbook of the USDA, 1905, Gov. Print. Off., Washington, D.C.
Taylor, W.A. 1907. Promising new fruits. Pecans, p. 365–370. In: G.W. Hill (ed.). Yearbook of the USDA, 1905, Gov. Print. Off., Washington, D.C.
Tedders, W.L. and J.S. Smith. 1976. Shading effect on pecan by sooty mold growth. J. Econ. Entomol. 69:551–553.
Thompson, T. E. 1986. Induction of pistillate flowers on juvenile pecan clones. HortScience 21:528529.
Thompson, T. E. 1990 Update pecan cultivars: current use and recommendations. Pecan S. 24(1):1220.
Thompson, T. E. and Baker, J. F. 1993. Heritability and phenotypic correlations of six pecan nut characteristics. J. Amer. Soc. Hort. Sci. 118(3):415–418.
Thompson, T. E. and L. J. Grauke. 1991. Pecans and hickories (Carya). pp 839904. In Moore, J. N. and Ballington, J. R. (eds.). Genetic Resources of Temperate Fruit and Nut Crops, Intl. Soc. for Hort. Sci., Wageningen. 974 pp.
Thompson, T. E. and Grauke, L. J. 1994. Genetic resistance to scab disease in pecan. HortScience Vol. 29(9):1078–1080.
Thompson, T. E. and Grauke, L.J. 1998. Field resistance to yellow aphids in pecan. J. Amer. Soc. Hort. Sci. 123(1):85–90.
Thompson, T. E., Grauke, L.J., and Sibbett, G. S. 2000. Host plant resistance to blackmargined aphids on pecan. J. Amer. Pomological Soc. 54(4):193–198.
Thompson, T.E., Grauke, L.J. and Young, E.F., Jr. 1996. Pecan kernel color: standards using the Munsell system of color notation. J. Amer. Soc. Hort. Sci. 121(3):548–553.
Thompson, T. E. and R. E. Hunter. 1983. Further yield results from the Brownwood variety test. Pecan Quart. 17(4):13–19.
Thompson, T. E. and R. E. Hunter. 1985. ‘Pawnee’ pecan. HortScience 20(4):776.
Thompson, T. E., R. E. Hunter, G. D. Madden, and E. J. Brown. 1981. Performance of varieties and selections in a high density orchard establishment test. Pecan Quart. 15(2):14–19.
Thompson, T. E. and L. D. Romberg. 1985. Inheritance of heterodichogamy in pecan. J. Heredity 76:456–458.
Thompson, T. E. and E. F. Young, Jr. 1985. Pecan cultivars – past and present. Tex. Pecan Growers Assn., College Station.
Thompson, T. E., E. F. Young, Jr., W. D. McIlrath, H. D. Petersen, and G. S. Sibbett. 1989. Pecan nut and kernel characteristics show genotype-environment interactions. J. Amer. Soc. Hort. Sci. 114:706–711.
Thompson, T.E., W.D. Goff, M. Nesbitt, L.J. Grauke, B. Wood, M. Smith, and M.T. Smith. 1995. Breeding scab resistant cultivars. Proc. SE Pecan Growers Assn. 88:162–165.
Thor, C. J. B. and C. L. Smith. 1935. A physiological study of seasonal changes in the composition of the pecan during fruit development. J. Agr. Res. 50:97–101.
True, R. H. 1919. Notes on the early history of the pecan in America. Smithsonian Inst. Ann. Rept. 1917:435–448.
Wells, L. 2007. Cultivar trends in the Southeast. Pecan South 40(1):10,12.
Wetzstein, H.Y., S.A. Merkle, J.R. Ault, and H.E. Sommer. 1989. Further characterization of somatic embryogenesis and plantlet regeneration in pecan (Carya illinoinensis). Plant Sci. 64:193–201.
Wood, B.W., J.A. Payne, and L.J. Grauke. 1990. The rise of the U.S. pecan industry. HortScience 25:594,721–723.
Wood, B.W. and C.C. Reilly. 1998. Susceptibility of pecan to black pecan aphids. HortScience 33:798–801.
Wysoki, J. and J. Yizhar. 1976. Israeli experts study looper. Pecan Quart. 10:22–23.
Yates, I.E. and C.C. Reilly. 1990. Somatic embryogenesis and plant development in eight cultivars of pecan. HortScience 25:57.
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Thompson, T.E., Conner, P.J. (2012). Pecan. In: Badenes, M., Byrne, D. (eds) Fruit Breeding. Handbook of Plant Breeding, vol 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-0763-9_20
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