[Arista M, Talavera S (1997) Gender expression in Abies pinsapo Boiss., a Mediterranean fir. Annals of Botany 79:337-342 http://dx.doi.org/10.1006/anbo.1996.035310.1006/anbo.1996.0353]Search in Google Scholar
[Bila AD, Lindgren D (1998) Fertility variation in Milletia stuhlmannii, Brachystegia spiciformis, Brachystegia bohemii and Leucaena leucocephala and its effects on relatedness in seeds. Forest Genetics 5:119-129]Search in Google Scholar
[Bila AD, Lindgren D, Mullin TJ (1999) Fertility variation and its effect on diversity over generations in a teak plantation (Tectona grandis L.f.). Silvae Genetica 48:109-114]Search in Google Scholar
[Bilir N, Kang KS, Ozturk H (2002) Fertility variation and gene diversity in clonal seed orchards of Pinus brutia, Pinus nigra and Pinus sylvestris in Turkey. Silvae Genetica 51:112-115]Search in Google Scholar
[Burd M (1994) Bateman’s principle and plant reproduction: the role of pollen limitation on fruit and seed set. Botanical Review 60:83-139 http://dx.doi.org/10.1007/bf0285659410.1007/BF02856594]Search in Google Scholar
[Charlesworth D (1989) Why do plants produce so many more ovules than seeds? Nature 338:21–22 http://dx.doi.org/10.1038/338021a010.1038/338021a0]Search in Google Scholar
[Cockerham CC (1967) Group inbreeding and coancestry. Genetics 56:89-10410.1093/genetics/56.1.8912114966035597]Search in Google Scholar
[Crawley MJ (1997) Plant Ecology (Second edition). Blackwell Science, Oxford, UK http://dx.doi.org/10.1002/978144431364210.1002/9781444313642]Search in Google Scholar
[Debain S, Curt T, Lepart J Prevosto B (2003) Reproductive variability in Pinus sylvestris in Southern France: implications for invasion. Journal of Vegetation Science 14:509-516 http://dx.doi.org/10.1111/j.1654-1103.2003.tb02177.x10.1111/j.1654-1103.2003.tb02177.x]Search in Google Scholar
[Devlin B, Ellstrand NC (1990) Male and female fertility variation in wild radish, a hermaphrodite. American Naturalist 136:87-107 http://dx.doi.org/10.1086/28508310.1086/285083]Search in Google Scholar
[El-Kassaby YA, Cook C (1994) Female reproductive energy and reproductive success in a douglas-fir seed orchard and its impact on genetic diversity. Silvae Genetica 43:243-246]Search in Google Scholar
[El-Kassaby YA (1995) Evaluation of tree-improvement delivery systems: factors affecting genetic potential. Tree Physiology 15:545-550 http://dx.doi.org/10.1093/treephys/15.7-8.54510.1093/treephys/15.7-8.54514965941]Search in Google Scholar
[Eriksson G, Jonsson A, Lindgren D (1973) Flowering in a clonal trial of Picea abies (Karst.). Studia Forestalia Suecica 110:4-45]Search in Google Scholar
[Gregorious HR (1989) Characterization and Analysis of Mating Systems. Ekopan Verlag, Germany]Search in Google Scholar
[Gregorious HR, Muller G (1975) Genetic structures in finite, open-pollinated plant populations: a model and its applications to seed orchards. Theoretical and Applied Genetics 46:295-30510.1007/BF0028115224420124]Search in Google Scholar
[Harder LD, Barrett SCH (1996) Pollen dispersal and matting patterns in animal pollinated species. In: Lloyd DG & Barrett SCH (eds) Floral biology: studies on floral evolution in animal-pollinated plants, Chapman and Hall, New York, USA, pp 140-190 http://dx.doi.org/10.1007/978-1-4613-1165-2_610.1007/978-1-4613-1165-2_6]Search in Google Scholar
[Kamalakannan R, Varghese M, Lindgren D (2007) Fertility variation and its implications on relatedness in seed crops in seedling seed orchards of Eucalyptus camaldulensis and E. tereticornis. Silvae Genetica 56:253-25910.1515/sg-2007-0036]Search in Google Scholar
[Kamalakannan R, Varghese M, Park JM, Kwon SH, Song JH, Kang KS (2015a) Fertility variation and its impact on effective population size in seed stands of Tamarindus indica and Azadirachta indica. Silvae Genetica 64(3):91-9910.1515/sg-2015-0008]Search in Google Scholar
[Kamalakannan R, Varghese M, Suraj PG, Arutselvan T (2015b) Options for converting a clone trial of Eucalyptus camaldulensis into a clonal seed orchard considering gain, fertility and effective clone number. Journal of Forestry Research 27:51-57 http://dx.doi.org/10.1007/s11676-015-0169-y10.1007/s11676-015-0169-y]Search in Google Scholar
[Kang KS, Lindgren D (1998) Fertility variation and its effect on the relatedness of seeds in Pinus densiflora, Pinus thunbergii and Pinus koraiensis clonal seed orchards. Silvae Genetica 47:196-201]Search in Google Scholar
[Kang KS, Lindgren D (1999) Fertility variation among clones of Korean pine (Pinus komiensis S. et Z.) and its implications on seed orchard management. Forest Genetics 6:191-200]Search in Google Scholar
[Kang KS, Bila AD, Harju AM, Lindgren D (2003) Estimation of fertility variation in forest tree populations. Forestry 76:329-344 http://dx.doi.org/10.1093/forestry/76.3.32910.1093/forestry/76.3.329]Search in Google Scholar
[Kang KS, Lindgren D, Mullin TJ (2004) Fertility variation, genetic relatedness and their impacts on gene diversity of seeds from a seed orchard of Pinus thunbergii. Silvae Genetica 53:202-20610.1515/sg-2004-0037]Search in Google Scholar
[Koeing WD, Knops JMH (2000) Patterns of annual seed production by northern hemisphere trees: a global perspective. American Naturalist 155:59-69 http://dx.doi.org/10.1086/30330210.1086/30330210657177]Search in Google Scholar
[Krouchi F, Derridj A, Lefevre F (2004) Year and tree effect on reproductive organization of Cedrus altlantica in a natural forest. Forest Ecology and Management 197:181-189 http://dx.doi.org/10.1016/j.foreco.2004.05.01310.1016/j.foreco.2004.05.013]Search in Google Scholar
[Lacy RC (1995) Clarification of genetic terms and their use in the management of captive populations. Zoo Biology 14:565-578 http://dx.doi.org/10.1002/zoo.143014060910.1002/zoo.1430140609]Search in Google Scholar
[Lindgren D, Lindgren K (1976) The effective population number in a Picea abies (Karst) seed orchard based on flower assessment. Scandinavian Journal of Forest Research 11:111-121]Search in Google Scholar
[Lindgren D, Mullin TJ (1998) Relatedness and status number in seed orchard crops. Canadian Journal of Forest Research 28:276-283 http://dx.doi.org/10.1139/cjfr-28-2-27610.1139/cjfr-28-2-276]Search in Google Scholar
[Lindgren D, Gea LD, Jefferson PA (1996) Loss of genetic diversity monitored by status number. Silvae Genetica 45:52-59]Search in Google Scholar
[Linhart YB, Mitton JB (1985) Relationships among reproduction growth rates and protein heterozygosity in ponderosa pine. American Journal of Botany 72: 181-184 http://dx.doi.org/10.2307/244354510.1002/j.1537-2197.1985.tb08282.x]Search in Google Scholar
[Mandal AK, Ennos AK (1995) Mating system analysis in a natural population of Acacia nilotica subsp. kraussiana. Forest Ecology and Management 79:235-240 http://dx.doi.org/10.1016/0378-1127(95)03542-710.1016/0378-1127(95)03542-7]Search in Google Scholar
[Milton SJ, Moll EJ (1982) Phenology of Australian acacias in S.W. Cape, South Africa, and its implications for management. Botanical Journal of the Linnean Society 84:295-327 http://dx.doi.org/10.1111/j.1095-8339.1982.tb00367.x10.1111/j.1095-8339.1982.tb00367.x]Search in Google Scholar
[Moffett AA (1956) Genetical studies in acacias. I. The estimation of natural crossing in black wattle. Heredity 10:57-67 http://dx.doi.org/10.1038/hdy.1956.410.1038/hdy.1956.4]Search in Google Scholar
[Moran GF, Muona O, Bell JC (1989) The breeding systems and genetic diversity in the tropical Acacias, Acacia auriculiformis and A. crassicarpa. Biotropica 21:250-256 http://dx.doi.org/10.2307/238865210.2307/2388652]Search in Google Scholar
[Muona O, Moran GF, Bell JC (1991) Hierarchical patterns of correlated mating in Acacia melanoxylon. Genetics 127:619-62610.1093/genetics/127.3.61912043882016057]Search in Google Scholar
[Nei M (1973) Analysis of gene diversity in subdivided populations. Proceedings of the National Academy of Sciences 70:3321-3323 http://dx.doi.org/10.1073/pnas.70.12.332110.1073/pnas.70.12.33214272284519626]Search in Google Scholar
[Nikkanen T, Ruotsalainen S (2000) Variation in flowering abundance and its impact on the genetic diversity of the seed crop in a Norway spruce seed orchard. Silva Fennica 34:205-222 http://dx.doi.org/10.14214/sf.62610.14214/sf.626]Search in Google Scholar
[Nunney L (2000) The limits to knowledge in conservation genetics-the value of effective population size. Evolutionary Biology 32:179-194 http://dx.doi.org/10.1007/978-1-4615-4135-6_910.1007/978-1-4615-4135-6_9]Search in Google Scholar
[Parotta JA (2001) Healing plants of peninsular India. CABI Publishing, USA.10.1079/9780851995014.0000]Search in Google Scholar
[Pinyopusarerk K, Harwood CE (2003) Flowering and seed production in tropical Eucalyptus seed orchards. In: Turnbull JW (ed) Eucalypts in Asia. ACIAR proceedings No. 111, Australian Centre for International Agricultural Research, Canberra, pp 247-248]Search in Google Scholar
[Richards AJ (1997) Plant Breeding Systems (Second edition). Chapman and Hill Publishers, 2-6 Boundary Row, London SE1 8HN, UK http://dx.doi.org/10.1007/978-1-4899-3043-910.1007/978-1-4899-3043-9]Search in Google Scholar
[Schmidt JO, Buchmann SL (1992) Other products of the hive. In: Graham JM (ed) The hive and the honeybee, Dadant & Sons, Hamilton, Illinois, USA, pp 927-988]Search in Google Scholar
[Sedgley M, Griffin AR (1989) Sexual reproduction in tree crops. Academic Press, London10.1016/B978-0-12-634470-7.50006-4]Search in Google Scholar
[Solomon Raju AJ, Rao PS (2002) Pollination ecology and fruiting behaviour in Acacia sinuata (Lour.) Merr. (Mimosaceae), a valuable non-timber forest plant species. Current Science 82:1466-1471]Search in Google Scholar
[Solomon Raju AJ, Rao PS, Henry Jonathan K (2006) Andromonoecy, insect pollination and fruiting behaviour in Acacia caesia (L.)Willd. (Mimosaceae) in the Eastern Ghats. Current Science 91:939-943]Search in Google Scholar
[Stephenson AG (1981) Flower and fruit abortion: proximate causes and ultimate functions. Annual Review of Ecology, Evolution and Systematics 12:253–279 http://dx.doi.org/10.1146/annurev.es.12.110181.00134510.1146/annurev.es.12.110181.001345]Search in Google Scholar
[Suangtho VL, Graudal L, Kjaer ED (1999) Genecological zonation as a tool in conservation of genetic resources of Teak (Tectona grandis) in Thailand. In: Teak Beyond 2000. Proceedings of the International Teak Conference. 23-25 August, Chiang Mai, Thailand, pp 1-8]Search in Google Scholar
[Tandon R, Shivanna KR, Mohan Ram HY (2001) Pollination biology and breeding system of Acacia senegal. Botanical Journal of the Linnean Society 135:251-262 http://dx.doi.org/10.1111/j.1095-8339.2001.tb01094.x10.1111/j.1095-8339.2001.tb01094.x]Search in Google Scholar
[Tangmitcharoen S, Owens JN (1997) Floral biology, pollination, pistil receptivity and pollen tube growth of teak (Tectona grandis Linn f.). Annals of Botany 79:227-241 http://dx.doi.org/10.1006/anbo.1996.031710.1006/anbo.1996.0317]Search in Google Scholar
[Varghese M, Kamalakannan R, Nicodemus A, Lindgren D (2008) Fertility variation and its impact on seed crops in seed production areas and a natural stand of teak in southern India. Euphytica 160:131-141 http://dx.doi.org/10.1007/s10681-007-9591-310.1007/s10681-007-9591-3]Search in Google Scholar
[Varghese M, Nicodemus A, Nagarajan B, Lindgren D (2006) Impact of fertility variation on gene diversity and drift in two clonal seed orchards of teak (Tectona grandis Linn. f.). New Forests 31:497-512 http://dx.doi.org/10.1007/s11056-005-2178-810.1007/s11056-005-2178-8]Search in Google Scholar
[Vasudeva R, Hanumantha M, Gunaga RP (2004) Genetic variation for floral traits among teak (Tectona grandis Linn.f) clones: Implications to seed orchard fertility. Current Science 87:358-362]Search in Google Scholar
[Wyatt R (1982) Inflorescence architecture: how flower number, arrangement, and phenology affect pollination and fruit set. American Journal of Botany 69:585-594 http://dx.doi.org/10.2307/244306810.1002/j.1537-2197.1982.tb13295.x]Search in Google Scholar