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Volumn 51, Issue 5-6, 2002, Pages 183-190

Variation between single tree progenies of Fagus sylvatica in seed traits, and its implications for effective population numbers

Author keywords

Beech; Cold treatment; Embryo dormancy; Fagus sylvatica; Pericarp; Seed coat dormancy; Seed dormancy; Seed production; Seed weight; Variation and effective population number

Indexed keywords

COLD EFFECTS; CORRELATION METHODS; SEED;

EID: 0038736982     PISSN: 00375349     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (16)

References (64)
  • 1
    • 0038606200 scopus 로고
    • Effects of mechanically sizing soybean seed on seed quality
    • ARMSTRONG, J. E., BASKIN, C. C. and DELOUCHE, J. C.: Effects of mechanically sizing soybean seed on seed quality. Journal of Seed Ecology 12 (1): 54-58 (1988).
    • (1988) Journal of Seed Ecology , vol.12 , Issue.1 , pp. 54-58
    • Armstrong, J.E.1    Baskin, C.C.2    Delouche, J.C.3
  • 2
    • 0032865124 scopus 로고    scopus 로고
    • Investigation on seed gemination of Nyctanthes arbor-tristis (Oleacea) in relation to the total phenol content
    • BHATTACHARYYA, S., DAS, B., GHOSE, T. K. and BHATTACHARYA, S.: Investigation on seed gemination of Nyctanthes arbor-tristis (Oleacea) in relation to the total phenol content. Seed Science and Technology 27: 321-327 (1999).
    • (1999) Seed Science and Technology , vol.27 , pp. 321-327
    • Bhattacharyya, S.1    Das, B.2    Ghose, T.K.3    Bhattacharya, S.4
  • 3
    • 0022823599 scopus 로고
    • Geographic differences in the seed germination of paper birch (Betula papyrifera)
    • BEVINGTON, J.: Geographic differences in the seed germination of paper birch (Betula papyrifera). American Journal of Botany 73 (4): 564-573 (1986).
    • (1986) American Journal of Botany , vol.73 , Issue.4 , pp. 564-573
    • Bevington, J.1
  • 5
    • 0020342125 scopus 로고
    • Regulation of seed-germination timing by moist chilling in western hemlock
    • CAMPBELL, R. K. and RITLAND, S. T.: Regulation of seed-germination timing by moist chilling in western hemlock. New Phytelogist 92: 173-182 (1982).
    • (1982) New Phytelogist , vol.92 , pp. 173-182
    • Campbell, R.K.1    Ritland, S.T.2
  • 8
    • 0031862290 scopus 로고    scopus 로고
    • The effect of seed stratification on gemination of 14 Cupressus species
    • CECCHERINI, L., RADDI, S. and ANDRÉOLI, C.: The effect of seed stratification on gemination of 14 Cupressus species. Seed Science & Technology 26: 159-168 (1998).
    • (1998) Seed Science & Technology , vol.26 , pp. 159-168
    • Ceccherini, L.1    Raddi, S.2    Andréoli, C.3
  • 10
    • 0001749080 scopus 로고
    • Genetic control of seed size and germination in Sitka spruce
    • CHAISURISRI, K., EDWADS, D. G. W. and EL-KASSABY, Y. A.: Genetic control of seed size and germination in Sitka spruce. Silvae Genetica 41(6): 348-355 (1992).
    • (1992) Silvae Genetica , vol.41 , Issue.6 , pp. 348-355
    • Chaisurisri, K.1    Edwads, D.G.W.2    El-Kassaby, Y.A.3
  • 11
    • 0028045354 scopus 로고
    • Effects of seed size on seedling attributes in Sitka spruce
    • CHAISURISHI, K., EDWARDS, D. G. W. and EL-KASSABY, Y. A.: Effects of seed size on seedling attributes in Sitka spruce. New Forests 8: 81-87 (1994).
    • (1994) New Forests , vol.8 , pp. 81-87
    • Chaisurishi, K.1    Edwards, D.G.W.2    El-Kassaby, Y.A.3
  • 12
    • 0002937591 scopus 로고
    • Physical and physiological changes in maturing douglas-fir cones and seed
    • CHING, T. M. and CHING, K. K.: Physical and physiological changes in maturing douglas-fir cones and seed. Forest Science 8(1): 21-31 (1962).
    • (1962) Forest Science , vol.8 , Issue.1 , pp. 21-31
    • Ching, T.M.1    Ching, K.K.2
  • 13
    • 0001005934 scopus 로고
    • Germination value: An index combining speed and completeness of pine seed gemination
    • CZABATOR, F. J.: Germination value: An index combining speed and completeness of pine seed gemination. Forest Science 8(4): 386-396 (1962).
    • (1962) Forest Science , vol.8 , Issue.4 , pp. 386-396
    • Czabator, F.J.1
  • 15
    • 0021545623 scopus 로고
    • The effect of seed size and maternal source on individual size in a population of Ludwigia leptocarpa (Onagraceae)
    • DOLAN, R. W.: The effect of seed size and maternal source on individual size in a population of Ludwigia leptocarpa (Onagraceae). American Journal of Botany 71(9): 1302-1307 (1984).
    • (1984) American Journal of Botany , vol.71 , Issue.9 , pp. 1302-1307
    • Dolan, R.W.1
  • 16
    • 0001392080 scopus 로고
    • Variation in seed germination of Chenopodium bonus-henricus in relation to altitude of plant growth
    • DORNE, A. J.: Variation in seed germination of Chenopodium bonus-henricus in relation to altitude of plant growth. Canadian Journal of Botany 59: 1893-1901 (1981).
    • (1981) Canadian Journal of Botany , vol.59 , pp. 1893-1901
    • Dorne, A.J.1
  • 17
    • 0002129411 scopus 로고
    • Influence of seed size on gemination and early development of loblolly pine (Pinus taeda)
    • DUNLAP, J. R. and BARNETT, J. P.: Influence of seed size on gemination and early development of loblolly pine (Pinus taeda). Canadian Journal of Forestry Research 13: 40-41 (1983).
    • (1983) Canadian Journal of Forestry Research , vol.13 , pp. 40-41
    • Dunlap, J.R.1    Barnett, J.P.2
  • 18
  • 19
    • 0000784330 scopus 로고
    • Douglas-fir genotypic response to seed stratification
    • EDWARDS, D. G. W. and EL-KASSABY, Y. A.: Douglas-fir genotypic response to seed stratification. Seed Science & Technology 23: 771-778 (1995).
    • (1995) Seed Science & Technology , vol.23 , pp. 771-778
    • Edwards, D.G.W.1    El-Kassaby, Y.A.2
  • 20
    • 0009290734 scopus 로고
    • Altitudinal variation in seed characteristics of Black Cherry in the Southern Appalachians
    • FARMER, R. E. Jr. and BARNETT, P. E.: Altitudinal variation in seed characteristics of Black Cherry in the Southern Appalachians. Forest Science 18(2): 169-175 (1972).
    • (1972) Forest Science , vol.18 , Issue.2 , pp. 169-175
    • Farmer R.E., Jr.1    Barnett, P.E.2
  • 21
    • 84959699878 scopus 로고
    • The effects of the parent environment on seed germinability. Review article
    • FENNER, M.: The effects of the parent environment on seed germinability. Review article. Seed Science Research 1: 75-84. (1991)
    • (1991) Seed Science Research , vol.1 , pp. 75-84
    • Fenner, M.1
  • 22
    • 0037592070 scopus 로고
    • Effects of cold stratification and seed coat sterilization treatments on pinyon (Pinus edulis) gemination
    • Missoula, Montana, August 5-6
    • GOTTFRIED, G. J. and HEIDMANN, L. J.: Effects of cold stratification and seed coat sterilization treatments on pinyon (Pinus edulis) gemination. Proceedings - Conifer tree seed in the Inland Mountain West Symposium. Missoula, Montana, August 5-6. 38-43 (1985).
    • (1985) Proceedings - Conifer Tree Seed in the Inland Mountain West Symposium , pp. 38-43
    • Gottfried, G.J.1    Heidmann, L.J.2
  • 23
    • 0028252960 scopus 로고
    • Temperatures and ecological-genetic differentiation affecting the germination of Hordeum spontaneum caryopses harvested from three populations: The Negev Desert and opposing slopes on mediterranean Mount Carmel
    • GUTTERMAN, Y. and NEVO, E.: Temperatures and ecological-genetic differentiation affecting the germination of Hordeum spontaneum caryopses harvested from three populations: The Negev Desert and opposing slopes on mediterranean Mount Carmel. Israel Journal of Plant Sciences 42: 183-195 (1994).
    • (1994) Israel Journal of Plant Sciences , vol.42 , pp. 183-195
    • Gutterman, Y.1    Nevo, E.2
  • 24
    • 0037592031 scopus 로고
    • Germination and seedling growth in Abies lasiocarpa (Hook.) Nutt. As affected by provenance, seed pretreatment and temperature regime
    • HANSEN, O. B. and LEIVSON, T. G.: Germination and seedling growth in Abies lasiocarpa (Hook.) Nutt. As affected by provenance, seed pretreatment and temperature regime. Scandinavian Journal of Forest Research 5: 337-345 (1990).
    • (1990) Scandinavian Journal of Forest Research , vol.5 , pp. 337-345
    • Hansen, O.B.1    Leivson, T.G.2
  • 25
    • 0025645112 scopus 로고
    • Seed ecology in a population of Acacia holosericea
    • HELLUM, A. K: Seed ecology in a population of Acacia holosericea. Canadian Journal of Forestry Research 20: 927-933 (1990)
    • (1990) Canadian Journal of Forestry Research , vol.20 , pp. 927-933
    • Hellum, A.K.1
  • 26
    • 0037592074 scopus 로고
    • Effect of stratification time and seed treatment on gemination of western white pine seed
    • Missoula, MT, August 5-6, 1995
    • HOFF, R. J.: Effect of stratification time and seed treatment on gemination of western white pine seed. In Proceedings of the Conifer Tree Seed in the Mountain West Symposium, Missoula, MT, August 5-6, 1995. 112-116 (1986).
    • (1986) Proceedings of the Conifer Tree Seed in the Mountain West Symposium , pp. 112-116
    • Hoff, R.J.1
  • 27
    • 0000479635 scopus 로고
    • Dormancy in Pinus monticola seed related to stratification time, seed coat, and genetics
    • HOFF, R. J.: Dormancy in Pinus monticola seed related to stratification time, seed coat, and genetics. Canadian Journal of Forestry Research 17: 294-298 (1987).
    • (1987) Canadian Journal of Forestry Research , vol.17 , pp. 294-298
    • Hoff, R.J.1
  • 28
    • 0020447572 scopus 로고
    • Variation and adaptive role of seed domancy in some annual grassland species
    • JAIN, S. K.: Variation and adaptive role of seed domancy in some annual grassland species. Botanical Gazette 143(1): 101-106 (1982).
    • (1982) Botanical Gazette , vol.143 , Issue.1 , pp. 101-106
    • Jain, S.K.1
  • 29
    • 0037929956 scopus 로고
    • Sycamore seedlings from the nursery - Not the same genetic composition as the collected seed lot
    • JOHNSON, G. R. and KELLISON, R. C.: Sycamore seedlings from the nursery - not the same genetic composition as the collected seed lot. Tree Planters Notes 35(3): 34-35 (1984).
    • (1984) Tree Planters Notes , vol.35 , Issue.3 , pp. 34-35
    • Johnson, G.R.1    Kellison, R.C.2
  • 30
    • 0000041403 scopus 로고    scopus 로고
    • Estimation of effective population number in a Picea abies (KARST.) seed orchard based on flower assessment
    • KJÆR, E. D.: Estimation of effective population number in a Picea abies (KARST.) seed orchard based on flower assessment. Scandinavian Journal of Forest Research 11: 11-121 (1996).
    • (1996) Scandinavian Journal of Forest Research , vol.11 , pp. 11-121
    • Kjær, E.D.1
  • 31
    • 0000974702 scopus 로고    scopus 로고
    • Variation in flowering and reproductive success in a Danish Picea abies (KARST.) seed orchard
    • KJÆR, E. D. and WELLENDORF, H.: Variation in flowering and reproductive success in a Danish Picea abies (KARST.) seed orchard. Forest Genetics 4: 181-188 (1997).
    • (1997) Forest Genetics , vol.4 , pp. 181-188
    • Kjær, E.D.1    Wellendorf, H.2
  • 32
  • 33
    • 0038267264 scopus 로고
    • Fractionation of seed orchard seeds by weight does have genetic implications
    • LINDGREN, D.: Fractionation of seed orchard seeds by weight does have genetic implications. Silva Fennica 16: 156-160 (1982).
    • (1982) Silva Fennica , vol.16 , pp. 156-160
    • Lindgren, D.1
  • 35
    • 0038073177 scopus 로고
    • Gemination of chokeberry (Prunus virginiana) seeds
    • LOCKLEY, G. C.: Gemination of chokeberry (Prunus virginiana) seeds. Seed Science & Technology 8: 237-244 (1980).
    • (1980) Seed Science & Technology , vol.8 , pp. 237-244
    • Lockley, G.C.1
  • 36
    • 0037592071 scopus 로고
    • Loblolly seed dormancy influenced by cone and seed handling procedures and parent tree
    • MCLEMORE, B. F. and BARNETT, J. P.: Loblolly seed dormancy influenced by cone and seed handling procedures and parent tree. U.S. Forest Service Research Note SO-41: 1-4 (1966).
    • (1966) U.S. Forest Service Research Note , vol.SO-41 , pp. 1-4
    • McLemore, B.F.1    Barnett, J.P.2
  • 37
    • 84989751797 scopus 로고
    • Influence of light on gemination of Pinus palustris seeds
    • MCLEMORE, B. F. and HANSEBROUGH, T.: Influence of light on gemination of Pinus palustris seeds. Physiologia Plantarum 23: 1-10 (1970).
    • (1970) Physiologia Plantarum , vol.23 , pp. 1-10
    • McLemore, B.F.1    Hansebrough, T.2
  • 38
    • 0037929949 scopus 로고    scopus 로고
    • Effet de la morphologie, du génotype et de la gemination précoce des glands de chêne rouge sur la croissance des plants en récipient
    • Gouvernement du Québec
    • MERCIER, S. and RAINVILLE, A.: Effet de la morphologie, du génotype et de la gemination précoce des glands de chêne rouge sur la croissance des plants en récipient. Mémoire de recherche forestiére 123. Gouvernement du Québec (1996).
    • (1996) Mémoire de Recherche Forestiére , vol.123
    • Mercier, S.1    Rainville, A.2
  • 39
    • 0002183367 scopus 로고
    • The effects of seed size and duration of growth on the height of scots pine (Pinus sylvestris L.) and norway spruce (Picea abies (L.) KARST.) provenances and progenies at the nursery stage
    • MIKOLA, J.: The effects of seed size and duration of growth on the height of scots pine (Pinus sylvestris L.) and norway spruce (Picea abies (L.) KARST.) provenances and progenies at the nursery stage. Silva Fennica 14: 84-94 (1980).
    • (1980) Silva Fennica , vol.14 , pp. 84-94
    • Mikola, J.1
  • 41
    • 0002924062 scopus 로고
    • Breaking dormancy before storage: An improvement to processing of beechnuts (Fagus sylvatica L.)
    • MULLER, C. and BONNET-MASIMBERT, M.: Breaking dormancy before storage: an improvement to processing of beechnuts (Fagus sylvatica L.). Seed Science and Technology 17: 15-26 (1989).
    • (1989) Seed Science and Technology , vol.17 , pp. 15-26
    • Muller, C.1    Bonnet-Masimbert, M.2
  • 43
    • 0030042114 scopus 로고    scopus 로고
    • Antagonistic effects of abscisic and gibberellic acid on the breaking of dormancy of Fagus sylvatica seeds
    • NICOLÀS, C., NICOLÀS, G. and RODRIGUEZ, D.: Antagonistic effects of abscisic and gibberellic acid on the breaking of dormancy of Fagus sylvatica seeds. Physiologia plantarum 96: 244-250 (1996).
    • (1996) Physiologia Plantarum , vol.96 , pp. 244-250
    • Nicolàs, C.1    Nicolàs, G.2    Rodriguez, D.3
  • 44
    • 0000293333 scopus 로고
    • Field and laboratory investigations of seed dormancy in red maple (Acer rubrum L.) from the North Carolina Piedmont
    • PERONI, P. A.: Field and laboratory investigations of seed dormancy in red maple (Acer rubrum L.) from the North Carolina Piedmont. Forest Science 41(2): 378-386 (1995).
    • (1995) Forest Science , vol.41 , Issue.2 , pp. 378-386
    • Peroni, P.A.1
  • 45
    • 0000773197 scopus 로고
    • Polymorphism of oat kernel size and shape in several Canadian oat cultivars
    • PIETRZAK, L. N. and FULCHER, R. G.: Polymorphism of oat kernel size and shape in several Canadian oat cultivars. Canadian Journal of Plant Science 75(1): 105-109 (1995).
    • (1995) Canadian Journal of Plant Science , vol.75 , Issue.1 , pp. 105-109
    • Pietrzak, L.N.1    Fulcher, R.G.2
  • 48
    • 0040803916 scopus 로고
    • Variable seed dormancy in Rocky Mountain juniper
    • August 14-18, 1989. Bismarck, North Dakota. General Technical Report RM-184
    • RIETVELD, W. J.: Variable seed dormancy in Rocky Mountain juniper. Proceedings, Intermountain Forest Nursery Association, August 14-18, 1989. Bismarck, North Dakota. General Technical Report RM-184. 60-64 (1989).
    • (1989) Proceedings, Intermountain Forest Nursery Association , pp. 60-64
    • Rietveld, W.J.1
  • 49
    • 0001086161 scopus 로고
    • Correlation of seed weight and nurserybed traits with 5-, 10-, and 15-year volumes in a loblolly pine progeny test
    • ROBINSON, J. F. and VAN BUIJTENEN, J. P.: Correlation of seed weight and nurserybed traits with 5-, 10-, and 15-year volumes in a loblolly pine progeny test. Forest Science 25(4): 591-596 (1979).
    • (1979) Forest Science , vol.25 , Issue.4 , pp. 591-596
    • Robinson, J.F.1    Van Buijtenen, J.P.2
  • 50
    • 0000481494 scopus 로고
    • Genetic variation of 16 provenances of Acacia mangium at nursery level in Turrialba, Costa Rica
    • SALAZAR, R.: Genetic variation of 16 provenances of Acacia mangium at nursery level in Turrialba, Costa Rica. Commonwealth Forestry Review 68(4): 263-272 (1989).
    • (1989) Commonwealth Forestry Review , vol.68 , Issue.4 , pp. 263-272
    • Salazar, R.1
  • 51
    • 0028150230 scopus 로고
    • Seed dormancy in common buckwheat (Fagopyrum esculentum MOENCH)
    • SAMIMY, C.: Seed dormancy in common buckwheat (Fagopyrum esculentum MOENCH). Plant varieties and seeds 7: 17-22 (1994).
    • (1994) Plant Varieties and Seeds , vol.7 , pp. 17-22
    • Samimy, C.1
  • 52
    • 0001799057 scopus 로고
    • Reduction of genetic base by sizing of bulked douglas-fir seed
    • SILEN, R. and OSTERHAUS, C.: Reduction of genetic base by sizing of bulked douglas-fir seed. Tree Planters Notes 30: 24-30 (1979).
    • (1979) Tree Planters Notes , vol.30 , pp. 24-30
    • Silen, R.1    Osterhaus, C.2
  • 53
    • 0028855399 scopus 로고
    • Seed stratification and gemination strategy in the Mediterranean pines Pinus brutia and P. halepensis
    • SKORDILIS, A. and THANOS, C. A.: Seed stratification and gemination strategy in the Mediterranean pines Pinus brutia and P. halepensis. Seed Science Research 5: 151-160 (1995).
    • (1995) Seed Science Research , vol.5 , pp. 151-160
    • Skordilis, A.1    Thanos, C.A.2
  • 54
    • 0031926191 scopus 로고    scopus 로고
    • Effect of fruit size and sowing density on quality and recovery of stumps in Tectona grandis (Linn. F.)
    • SURESH, K. K., JAMBULINGAM, R. and SEKAR, I.: Effect of fruit size and sowing density on quality and recovery of stumps in Tectona grandis (Linn. F.). International Tree Crops Journal 9: 195-202 (1998).
    • (1998) International Tree Crops Journal , vol.9 , pp. 195-202
    • Suresh, K.K.1    Jambulingam, R.2    Sekar, I.3
  • 55
    • 0000044762 scopus 로고
    • Effect of seed source and stratification on the germination of deodar seed
    • THAPLIYAL, R. C. and GUPTA, B. N.: Effect of seed source and stratification on the germination of deodar seed. Seed Science & Technology 8: 145-150 (1980).
    • (1980) Seed Science & Technology , vol.8 , pp. 145-150
    • Thapliyal, R.C.1    Gupta, B.N.2
  • 56
    • 0038606169 scopus 로고
    • Inhibition of seed germination by pericarp in Fraxinus micrantha Lang
    • THAPLIYAL, P. and NAUTIYAL, A. R.: Inhibition of seed germination by pericarp in Fraxinus micrantha Lang. Seed Science and Technology 17: 125-130 (1989).
    • (1989) Seed Science and Technology , vol.17 , pp. 125-130
    • Thapliyal, P.1    Nautiyal, A.R.2
  • 57
    • 0002685479 scopus 로고    scopus 로고
    • The effect of harvest time and drying on domancy and storability in Beechnuts
    • Basic and applied aspects of seed biology. Reading 1995
    • THOMSEN, K. A.: The effect of harvest time and drying on domancy and storability in Beechnuts. In: Basic and applied aspects of seed biology. Proceedings of the fifth international workshop on seeds, Reading 1995: 45-51 (1997)
    • (1997) Proceedings of the Fifth International Workshop on Seeds , pp. 45-51
    • Thomsen, K.A.1
  • 58
    • 0038267314 scopus 로고    scopus 로고
    • Seed development and dormancy in Beechnuts (Fagus sylvatica L.)
    • Povlsen, F.V. PhD thesis. The Royal Veterinary and Agricultural University, Denmark
    • THOMSEN, K. A., POVLSEN, F. V. and ERIKSEN, E. N.: Seed development and dormancy in Beechnuts (Fagus sylvatica L.). In: Povlsen, F.V.: Seed maturation in broadleaved tree species from the temperate climate. PhD thesis. The Royal Veterinary and Agricultural University, Denmark. (1997).
    • (1997) Seed Maturation in Broadleaved Tree Species from the Temperate Climate
    • Thomsen, K.A.1    Povlsen, F.V.2    Eriksen, E.N.3
  • 59
    • 0026574737 scopus 로고
    • Seed and seedling traits of Dalbergia sissoo Roxb.: Seed source variation studies among ten sources in India
    • VAKSHASYA, R. K., RAJORA, O. P. and RAWAT, M. S.: Seed and seedling traits of Dalbergia sissoo Roxb.: seed source variation studies among ten sources in India. Forest Ecology and Management 48: 265-275 (1992).
    • (1992) Forest Ecology and Management , vol.48 , pp. 265-275
    • Vakshasya, R.K.1    Rajora, O.P.2    Rawat, M.S.3
  • 61
    • 0029783524 scopus 로고    scopus 로고
    • Changes in free, esterified and glycocidic phenolic acids in cereal grains during the after-ripening
    • WEIDNER, S., PAPROCKA, J. and LUKASZEWICZ, D.: Changes in free, esterified and glycocidic phenolic acids in cereal grains during the after-ripening. Seed Science & Technology 24: 107-114 (1996).
    • (1996) Seed Science & Technology , vol.24 , pp. 107-114
    • Weidner, S.1    Paprocka, J.2    Lukaszewicz, D.3
  • 62
    • 0003454758 scopus 로고    scopus 로고
    • Gebrüder Borntraeger. Berlin. Stuttgart
    • WERKER, E.: Seed Anatomy. Gebrüder Borntraeger. Berlin. Stuttgart. (1997).
    • (1997) Seed Anatomy
    • Werker, E.1
  • 63
    • 0010504491 scopus 로고
    • Geographic variation in European Black Pine - Two-year results
    • WRIGHT, J. W. and BULL, W. I.: Geographic variation in European Black Pine - two-year results. Forest Science 8(1): 32-42 (1962).
    • (1962) Forest Science , vol.8 , Issue.1 , pp. 32-42
    • Wright, J.W.1    Bull, W.I.2
  • 64
    • 0001771498 scopus 로고
    • Evolution in Mendelian populations
    • WRIGHT, S: Evolution in Mendelian populations. Genetics 16, 97-159 (1931).
    • (1931) Genetics , vol.16 , pp. 97-159
    • Wright, S.1


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