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Genetic Variation in Growth Traits in a Quercus robur L. Open-Pollinated Progeny Test of the Slavonian Provenance

Abstract

The study presents evaluation of an open-pollinated progeny test of 21 selected plus trees from Slavonian pedunculate oak provenance in Croatia (in the central part of Drava river valley). The test was established in 1992 with two-year-old seedlings. Heights were measured at 5 to 13 years and diameters at breast height (DBH) at 10 to 13 years after sowing. Variances caused by the population within provenance effect were not significant during the studied period. In contrast, variance components caused by family effect were statistically significant, and ranged from 11.1 to 18.6% and from 2.2 to 10.6% for height and DBH respectively. Statistically significant variances caused by the family effect indicate that most of genetic variation of productive traits was within the studied populations. The estimated family mean narrow sense heritabilities varied from 0.62 to 0.78 and from 0.28 to 0.65, while individual heritabilities ranged from 0.48 to 0.80 and from 0.09 to 0.46 for height and DBH, respectively. Realised gain from the test and expected genetic gains by two possible methods of selection for the measured traits have been calculated for: i.) realised gain i.e. superiority of selected plus trees progenies over control plants (bulks from unselected trees within the provenance) ii.) individual within provenance mass selection of first generation plus trees at the same ages as those represented in studied trial and iii.) backward selection among first generation plus trees after open-pollinated testing. Estimated genetic gains indicate that the highest gain could be expected by backward selection among first generation plus trees after open-pollinated progeny testing (9.7 to 22.3% and 6.8 to 17.3% over control means). These results indicate that due to significant within population variation and high additive variances, improvement for productive traits in the studied oak populations could be achieved by use of seeds and plants from selected plus trees (especially from already established clonal seed orchard), at least in younger ages.

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Genetic Variation in Abies religiosa for Quantitative Traits and Delineation of Elevational and Climatic Zoning for Maintaining Monarch Butterfly Overwintering Sites in Mexico, considering Climatic Change

­pensive screening methods. Western Journal of Applied Forestry 15:129- 136. Benavides-Meza, HM, Gazca-Guzmán MO, López-López SF, Camacho-Morfín F, Young-Fernández D, de la Garza-López de Lara MP, Nepamuceno-Martínez F (2011) Growth variability in seedlings of eight provenances of Abies reli­giosa (H.B.K.) Schlecht. et Cham., in nursery conditions. Madera y Bosques 17:83-102. Blanco-García A, Sáenz-Romero C, Martorell C, Alvarado-Sosa P, Lindig-Cisneros RA (2011) Nurse plant and mulching effects on tree conifer species in a Mexican temperate

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Clinal variation in Pinus hartwegii populations and its application for adaptation to climate change

Abstract

In order to determine the genetic variation among populations of Pinus hartwegii along altitudinal gradients, and the possible adaptive decoupling due to climatic change, a common garden test was set up with 13 provenances collected along an altitudinal transect (3150 to 3750 masl; collection sites were every 50 m of altitudinal difference) from Pico de Tancítaro, Michoacán, west-central Mexico. The test evaluated trees aged 4.5 to 5.5 years, and contemporary and future (year 2030; six model-emission scenarios) climate variables were estimated. We found significant (P<0.005) differences among populations in total elongation, final seedling height, basal diameter, rate of elongation, dry weight of needles, branches and stem, total dry weight and first principal component. We found a significant association between population performance, expressed as first principal component values, and their climate, where the best climatic predictor was the frost free period (r2=0.90, P<0.0001). This result indicates that the patterning of genetic differentiation among populations is strongly associated with a climatic and altitudinal gradient. We propose a re-delineation of fixed climatic and altitudinal seed zoning for seed and seedling movement, based on intervals of 26 days of difference of frost free period: Zone 1, from 240 to 214 days of frost free period or 12 to 11°C or 3150 to 3350 masl; Zone 2, 214 to 188 days or 11 to 10°C or 3350 to 3550 masl; and Zone 3, 188 to 162 days or 10 to 9°C or 3550 a 3750 masl. Projecting at what altitude will occur the same frost free period values by year 2030, we suggested that populations should be shifted 400 m attitudinally upward, through a program of assisted migration, aiming to realign the populations to the climate for which they are adapted. Seedling deployment should use future (year 2030) fixed seed zones, with the same projected climatic interval values than contemporary climate, although at the following altitudinal limits: Zone 12030, from 3550 to 3750 masl; Zone 22030, 3750 to 3950 masl; and Zone 32030, 3950 to 4150 masl.

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Provenance Variation in Radial Increment and Wood Characteristics Revealed by 30 Years Old Norway Spruce Comparative Trials

References ALBU, C. T. (2010): Cerceta˘ ri privind caracteristicile lemnului de molid de rezonant¸a˘ în bazinul râului Gurghiu (Ocoalele silvice Gurghiu s¸i Fâncel), în concordant¸a˘ cu solicita˘ rile industriei instrumentelor muzicale. Teza˘ de doctorat, Universitatea Transilvania din Bras¸ov, România. ALEXANDROV, A. and T. STANKOVA (1997): Norway spruce provenance trials in Bulgaria. IUFRO Norway spruce symposium, Stara Lesna, Slovakia, 8p. BADEA, O. (2008): Manual privind metodologia de supraveghere pe termen

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Conservation Approaches For Autochthonous Woody Plants in Flanders

effect of provenance on the performance of Crataegus monogyna in hedges. Journal of Applied Ecology 38: 952-962. KITZMILLER, J. H. (1990): Managing genetic diversity in a tree improvement program. Forest Ecology and Management 35: 131-149. KLEINSCHMIT, J. R. G., D. KOWNATZKI and H. R. GREGORIUS (2004): Adaptational characteristics of autochthonous populations - consequences for provenance delineation. Forest Ecology and Management 197: 213-224. LEFÈVRE, F. (2001): Static conservation of collections, pp. 29-32 in Forest

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Stem breakage and forking in low and high elevation Pinus tecunumanii

References B irks , J. S. and R. D. B arnes (1995): Provenance variation in Pinus caribaea , P. oocarpa and P. patula ssp. tecunumanii . Tropical Forestry Papers. 21 : 40p. C osta , E. S. J and G. L ars (2008): Evaluation of an international series of Pinus kesiya provenance trials for growth and wood quality traits. Forest Ecology and Management 255 : 3477–3488. C rockford , K. J., A. J. D unsdon , W. B. H. B aylis , J. S. B irks and R. D. B arnes (1990): Evaluation of tropical pine provenance and progeny tests. ODA Research

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Variation in Eucalyptus globulus LABILL. and E. nitens DEAN and MAIDEN in Susceptibility of Adult Foliage to Disease Caused by Mycosphaerella cryptica (COOKE) HANSF

diseases of juvenile foliage in a eucalypt species and provenance trial in Victoria, Australia. Aust. For. 61: 190-194. CARNEGIE, A. J., I. G. JOHNSON and M. HENSON (2004): Variation among provenances and families of blackbutt (Eucalyptus pilularis) in early growth and susceptibility to damage from leaf spot fungi. Can. J. For. Res. 34: 2314-2326. CARNEGIE, A. J. and P. K. KEANE (2003): Variation in severity of target spot, caused by Aulographina eucalypti, in a eucalypt species and provenance trial in Victoria. Aust. Plant. Path. 32: 393

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Genetic parameter estimates and parental selection in Eucalyptus longirostrata and Corymbia henryi populations tested in South Africa

growth and stem straightness in provenance-family trial on saltland in Pakistan. Forest Ecology and Management 176 : 405–416. N amkoong , G. (1979): Introduction to Quantitative Genetics in Forestry. U.S. Department of Agriculture. Technical Bulletin No.1588. N dlovu , Z. T. L. (2009): Breeding of advanced generation of Eucalyptus macarthurii – growth parameters and development of a non-destructive near infrared (NIR) calibration model for screening of pulping properties. MSc Thesis, University of KwaZulu-Natal, Pietermaritzburg. SAS INSTITUTE

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Influence of Plum Rootstocks on the Content of Reducing Sugars in the Annual Shoots of Cultivar ‘Kubanskaya Kometa’

. Morin, X., Ameglio, T. & Ahas, R. (2007). Variation in cold hardiness and carbohydrate concentration from dormancy induction to bud burst provenances of three European oak species. Tree physiology, 27, 817 - 825. 11. Pleshkov, B. P. (1976). Практикум по биохимии растений ( Practical guide of plant biochemistry). Moscow. Kolos. (in Russian). 12. Rozpara, E., Glowacka, A. & Grzyb, Z. S. (2010). The growth and yields of eight plum cultivars grafted on two rootstocks in central Poland. Acta Horticulturae, 874, 255 - 259. 13

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Influence of Meteorological Factors on Needle Cast Damage in Young Scots Pine Stands

ietekmes uz Lophodermium seditiosum micēlija attīstību in vitro novērtējums. (Coniferous Tree Bark Extract’s Influence on Lophodermium seditiousum Mycelium Development In Vitro Assessment) Mežzinātne , 26 (59), 167.-181. 14. Kļaviņš, M., Blumberga, D., Bruņiniece, I., Briede, A., Grišule, G., Andrušaitis, A., Āboliņa, K. (2008). Klimata mainība un globālā sasilšana. (Climate Changeability and Global Warming) Rīga: LU Akadēmiskais apgāds, 176. 15. Liesebach, M., Stephan, B.R. (1996). Results of the IUFRO 1982 Scots pine ( Pinus sylvestris L.) provenance

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