Abstract
During the last 20 years a program to develop and commercialize the Pinus patula × Pinus tecunumanii hybrid, as a replacement for P. patula, has been successfully implemented. The first crosses were initiated during the early 1990s and lead to establishment of field trials across a wide variety of sites. This work gained further impetus when it became apparent that Fusarium circinatum, was causing poor post-planting survival of newly established stands of P. patula. P. tecunumanii, has been shown to be tolerant to this disease and thus a second, more comprehensive hybrid testing phase was implemented. Improvements in controlled pollination techniques and propagation methods, as well as access to genetically improved parent-stock and the use of molecular marker technology for fingerprinting was effectively utilized to greatly improve the process during this second phase. The use of artificial inoculation trials have demonstrated that the hybrid, in particular when using the low elevation (LE) provenances of P. tecunumanii, had substantially greater tolerance to F. circinatum than P. patula and survival figures from field trials support these results. Four-year volumes also indicate large growth improvements, although frost damage on certain sites presents a challenge for deployment on colder sites; and this is being tackled through breeding and accurate mapping of frost risk. Large-scale controlled pollinations and vegetative multiplication are now utilized commercially to produce the P. patula × P. tecunumanii (LE) hybrid as an alternative to P. patula.
Similar content being viewed by others
References
Barnes RD, Styles BT (1983) The closed-cone pines of Mexico and Central America. Commonw Forest Rev 62(2):81–84
Bayley AD, Blakeway F (2002) Deployment strategies to maximise value recovery from tree improvement: the experience of two South African companies. S Afr For J 195:11–22
Camcore Annual Report (2008a) Progress in hybrid testing. Department of Forestry and Environmental Resources, NC State University, Raleigh, NC, p 41
Camcore Annual Report (2008b) Wood properties species characterisation. Department of Forestry and Environmental Resources, NC State University, Raleigh, NC, p 24
Camcore Annual Report (2009) Progress in hybrid testing. Department of Forestry and Environmental Resources, NC State University, Raleigh, NC, p 35
Cerda DA (2012) Geographical variation of cold hardiness in Pinus patula provenances and genetic inheritance of cold hardiness in Pinus patula × Pinus tecunumanii hybrids. M.Sc. North Carolina State University, Raleigh, p 91
Coutinho TA, Steenkamp ET, Mongwaketsi K, Wilmot M, Wingfield MJ (2007) First outbreak of pitch canker in a South African pine plantation. Australas Plant Pathol 36:256–261
Critchfield WB (1967) Crossability and relationships of the closed-cone pines. Silvae Genetica 16(3):89–120
Crous JW (2005) Post establishment survival of Pinus patula in Mpumalanga, 1 year after planting. S Afr For J 205:3–11
Davis CL (2011) Climate risk and vulnerability: a handbook for Southern Africa. Council for Scientific and Industrial Research, Pretoria, p 92
de Resende MDV, de Assis TF (2008) Seleção Recorrente Reciproca entre Populações Sintéticas Multi-Espécies (SRR-PSME) de Eucalipto. Pesquisa Florestal Brasileira 57:57–60
Dommisse EJ (1994) Thermomechanical pulping (TMP) and chemothermomechanical pulping (CTMP) of South African grown pine species: a comparative study. M.Sc. University of Stellenbosch, South Africa, p 175
Dungey HS (2001) Pine hybrids: a review of their use, performance and genetics. For Ecol Manag 148:243–258
Dvorak WS (2000) Positioning tree improvement programs to utilize advances in new technologies. In: IUFRO: forest genetics for the next millennium, Durban, South Africa, pp 16–21
Dvorak WS, Lambeth CC (1993) Results of a survey to determine cone and seed production of Pinus tecunumanii in the tropics and subtropics. In: Lambeth CC, Dvorak WS (eds) Proceedings of the IUFRO S2.02.08 breeding tropical trees, Cartagena and Cali, Columbia
Dvorak WS, Lambeth CC, Li B (1993) Genetic and site effects on stem breakage in Pinus tecunumanii. New Forest 7:237–253
Dvorak WS, Jordan AP, Hodge GR, Romero JL (2000a) Assessing the evolutionary relationships of pines in the Oocarpae and Australes subsections using RAPD markers. New Forest 20:163–192
Dvorak WS, Hodge GR, Kietzka JE, Malan FS, Osorio LF, Stanger T (2000a) Pinus patula. In: Conservation and testing of tropical and subtropical forest tree species by the Camcore cooperative. College of Natural Resources, North Carolina State University, Raleigh, pp 148–173
Dvorak WS, Hodge GR, Gutierrez EA, Osorio LF, Malan FS, Stanger T (2000b). Pinus tecunumanii. In: Conservation and testing of tropical and subtropical forest tree species by the Camcore cooperative. College of Natural Resources, North Carolina State University, Raleigh, pp 188–209
Falkenhagen E (1990) Early mortality in Pinus tecunumanii provenance trials in South Africa. Commonw Forest Rev 69(1):163–192
FES (2008) Report on commercial timber resources and primary roundwood processing in South Africa—2006/2007. Pretoria, compiled by Forestry Economics Services CC on behalf of Directorate: Forestry Technical and Information Services, p 137
Ford CM, Jones NJ, Chirwa PWC (2014) Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum. South For 76(2) (in press)
Hodge GR, Dvorak WS (2000) Differential response of Central American and Mexican pine species and Pinus radiata to infection by the pitch canker fungus. New Forest 19(3):241–258
Hodge GR, Dvorak WS (2007) Variation in pitch canker (Fusarium circinatum) resistance among provenances of P. patula and P. tecunumanii from Mexico and Central America. New Forest 33(2):193–206
Hodge GR, Dvorak WS (2012) Growth potential and genetic parameters of four Mesoamerican pines planted in the Southern Hemisphere. South For 74(1):27–49
Hodge GR, Dvorak WS, Tighe ME (2012) Comparisons between laboratory and field results of frost tolerance of pines from the southern USA and Mesoamerica planted as exotics. South For 74(1):7–17
Kanzler A (2006a) Five-year results from a progeny trial testing a range of P. patula × P. tecunumanii families at Hlelo. Pine breeding report 17/2006, Sappi, p 6
Kanzler A (2006b) The variation in density amongst a range of Pinus tecunumanii provenances and families across three sites at Usutu. Sappi research document 03/2006, Sappi, p 13
Kanzler A (2007) A review of the Pinus patula × P. tecunumanii hybrid within Sappi. Sappi research document 04/2007, Sappi, p 36
Kanzler A (2012) Selection and breeding for wood properties in the Pinus patula × P. tecunumanii hybrid. Presentation at the 9th Southern African plant breeding symposium, Skukuza
Kanzler A, Payn K, Nel A (2012) Performance of two Pinus patula hybrids in southern Africa. South For 74(1):19–25
Lindkvist L, Chen D (1999) Air and soil frost indices in relation to plant mortality in elevated clear felled terrain in Central Sweden. Clim Res 12:65–75
Lindkvist L, Gustavsson T, Bogren J (2000) A frost assessment method for mountainous areas. Agric Forest Meteorol 102:51–67
Malan FS (1994) The quality and wood properties of four provenances of South-African grown Pinus tecunumanii. Ann Sci For 51:203–212
Mitchell RG, Steenkamp ET, Coutinho TA, Wingfield MJ (2011) The pitch canker fungus: implications for South African forestry. South For 73(1):1–13
Mitchell RG, Coutinho TA, Steenkamp ET, Herbert M, Wingfield MJ (2012a) Future outlook for Pinus patula in South Africa in the presence of the pitch canker fungus (Fusarium circinatum). South For 74(4):203–210
Mitchell RG, Wingfield MJ, Hodge GR, Steenkamp ET, Coutinho TA (2012b) Selection of Pinus spp. in South Africa for tolerance to infection by the pitch canker fungus. New Forest 43:473–489
Mitchell RG, Wingfield MJ, Hodge GR, Steenkamp ET, Coutinho TA (2012c) The tolerance of Pinus patula × Pinus tecunumanii, and other pine hybrids, to Fusarium circinatum in greenhouse trials. New Forest. doi:10.1007/s11056-012-9355-3
Mitchell RG, Wingfield MJ, Hodge GR, Dvorak WS, Coutinho TA (2013) Susceptibility of provenances and families of Pinus maximinoi and Pinus tecunumanii to frost in South Africa. New Forest 44(1):135–146
Morris A (2010) A review of pitch canker fungus (Fusarium circinatum) as it relates to plantation forestry in South Africa. Sappi research document 08/2010, Sappi, p 35
Morris AR, Pallett R (2000) Site requirement and species matching: pines. In: Owen DL (ed) South African forestry handbook, vol 1. Southern African Institute of Forestry, Pretoria, pp 80–84
Nel A (2002) Factors influencing controlled pollination of Pinus patula. M.Sc. thesis, University of Natal, p 100
Nel A, Kanzler A (2013) Pitch canker fungus inoculation screening and early field-growth of clonally propagated and DNA finger-printed Pinus patula × P. tecunumanii hybrid polymix families. Presentation at IUFRO Working group 2.02.20 breeding and genetic resources of Southern US and Mexican pines, ‘breeding for value in a changing world’, Jacksonville, Florida
Nel A, van Staden J (2003) Micro-fibre pollination bags and high viability Pinus patula pollen enhance cone survival and seed set during controlled pollination. S Afr J Bot 69(4):469–475
Nel A, van Staden J (2005) Pollen morphological factors and impact of temperature on pollen germination of various Pinus species. S Afr J Bot 71(1):88–94
Nel A, Hodge GR, Mongwaketsi KE, Kanzler A (2014) Genetic parameters for Fusarium circinatum tolerance within open-pollinated families of Pinus patula tested at screening facilities in South Africa and the USA. South For 76(2) (in press)
Oak SW, Blakeslee GM, Rockwood DL (1987) Pitch canker resistant slash pine identified by greenhouse screening. In: 19th Southern forest tree improvement conference, College Station, TX
Porter B, Wingfield MJ, Coutinho TA (2014) Evaluation of techniques to screen pine seedlings and cuttings for tolerance to infection by Fusarium circinatum. South For 76(2) (in press)
Pouteau R, Rambal S, Jean-Pierre R, Goge F, Joffre R, Winkel T (2011) Downscaling MODIS-derived maps using GIS and boosted regression trees: the case of frost occurence over the arid Andean highlands of Bolivia. Remote Sens Environ 115:117–129
Price RA, Liston A, Strauss SH (1998) Phylogeny and systematics of Pinus. In: Richardson DM (ed) Ecology and biogeography of pinus. Cambridge University Press, Cambridge, p 527
Roux JB, Eisenberg A, Kanzler A, Nel A, Coetzee V, Kietzka JE, Wingfield MJ (2007) Testing of selected South African Pinus hybrids and families for tolerance to the pitch canker pathogen, Fusarium circinatum. New Forest 33:109–123
Schulze RE, Maharaj M (2007) Frequency of frost occurrences. In: Schulze RE (ed) South African atlas of climatology and agrohydrology, Water Research Commission, Pretoria, RSA, WRC Report 1489/1/06, Section 9.3
Smith CW, Gardner RAW, Pallet RN, Swain T, du Plessis M, Kunz RP (2005) A site evaluation for site: species matching in the summer rainfall regions of southern Africa. ICFR bulletin series No. 04/2005. Pietermaritzburg: Institute for Commercial Forestry Research, p 18
Stanger T (2003) Variation and genetic control of wood properties in the juvenile core of Pinus patula grown in South Africa. Ph.D. North Carolina State University, Raleigh
Viljoen A, Wingfield MJ, Marasas WFO (1994) First report of Fusarium subglutinans f. sp. pini on pine seedlings in South Africa. Plant Dis 78(3):309–312
Wingfield MJ, Slippers B, Wingfield BD (2010) Novel associations between pathogens, insects and tree species threaten world forests. NZ J Forest Sci 40(Suppl):95–103
Wright JA, Gibson GL, Barnes RD (1987) Provenance variation in stem volume and wood density of Pinus oocarpa and P. patula ssp tecunumanii growing at two elevations in South Africa. S Afr For J 143:46–48
Acknowledgments
The authors would like to thank the following organizations for help in carrying out various aspects of the work—FABI, FMG, Camcore and the CSIR. In addition the input and work of several members of the Sappi team are gratefully acknowledged. These include Kgosi Mongwaketsi, Eric Simelane, Mthokozisi Makhathini, Jacob Crous, Riyad Ismail, Leigh Williams and Luke Solomon.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kanzler, A., Nel, A. & Ford, C. Development and commercialisation of the Pinus patula × P. tecunumanii hybrid in response to the threat of Fusarium circinatum . New Forests 45, 417–437 (2014). https://doi.org/10.1007/s11056-014-9412-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11056-014-9412-1