“Provenance” Variation in Growth Features of<i>Eucalyptus grandis</i>and<i>Eucalyptus saligna</i>in South Africa

Roeder, K. R.

doi:10.1080/00382167.1980.9629514

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…This inferiority of E. saligna to E. grandis in volume increment is in contrast to the position reported by Roeder (1979) for the same seedlots at four years of age. At that time two or three of the best volume producers at the three major plantations studied were E. saligna seedlots.…”

Section: Volume Growthcontrasting

confidence: 99%

“…The data from the first measurement of the three most complete and statistically acceptable trials, at Frankfort, KwaMbonambi and Port Durnford, were analysed by Roeder (1979). All trials were measured at the age of four years.…”

Section: Methodsmentioning

confidence: 99%

“…The superior stem form of E. grandis over that of E. saligna has been noted before (Poynton, 1979;Roeder, 1979). It was possible, however, to compare species within trials and the rankings of the seedlots within species.…”

Section: Stem Formmentioning

confidence: 97%

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Provenance-type Trials ofEucalyptus grandisandE. salignain South Africa: Eight Year Results

Darrow¹

1983

South African Forestry Journal

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SYNOPSISA series of five composite trials of Eucalyptus grandis and E. saligna, planted in different areas of South Africa in 1983, was remeasured at the age of 7% years.At all locations E. grandis was superior to E. saligna in height, basal area and volume growth as well as stem form. Because of the higher density of E. saligna, the better seedlots of this species were as good wood mass producers as many of the E. grandis seedlots. The best E. grandis seedlots, however, were far superior to the best E. saligna seedlots.Within each species there were often major changes in the ranking of seedlots for growth variables between the ages of four years and 7% years. There were also indications of moderate genotype X environment interaction for E. grandis. It may therefore be unwise to select superior seedlots at a young age for tree breeding work either within climatic zones or for planting in other zones without testing all seedlots in all climatic zones for at least one-half the expected rotation age.Attempts to determine the best locations for future provenance selections for E. grandis for planting in the eastern Transvaal, South Africa's major E. grandis growing area, indicated that the climatic zones of Australia similar to that found at Coff's Harbour, N.S.W., should be preferred. 30

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Section: Volume Growthcontrasting

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Provenance-type Trials ofEucalyptus grandisandE. salignain South Africa: Eight Year Results

Darrow¹

1983

South African Forestry Journal

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“…In Australia, provenances from low altitudes in south eastern Queensland and Coffs Harbour were more productive, with significant differences among provenances around Coffs Harbour (Ades and Burgess, 1983). In South Africa, seedlots from Coffs Harbour and Atherton consistently ranked among the top volume producers (Roeder, 1980). In Zimbabwe, the best provenances were not from a particular geographic region, and good and poor provenances were observed in each region, suggesting that closely located provenances may not perform alike (Matheson and Mullin, 1987).…”

Section: Provenance and Seed Orchard Comparisonsmentioning

confidence: 96%

Comparison of Eucalyptus grandis Provenances and Seed Orchards in a Frost Frequent Environment

Rockwood

Meskimen²

1991

South African Forestry Journal

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SYNOPSISAn international provenance trial of Eucalyptus grandis was established in southern Florida in 1980 and measured for growth and frost-tolerance through 8,8 years. The trial compared 20 Australian provenances 1) among themselves and 2) with seed orchard stock from Florida and South Africa. Florida orchard seedlots grew better than nearly all other material, including a South African clonal seed orchard bulklot. Provenance variability was significant for growth, survival. and frost-tolerance. with some provenances notably more frost-tolerant than provenances previously introduced into the Florida breeding population. Only the Herberton provenance was comparable to advanced-generation Florida seedlots in all critical traits. Importation of some provenances from the northern part of the species range may be warranted to broaden the genetic base of E. grandis in Florida. Further comparisons in a supplemental study and a Florida genetic base population also noted variation between relatively close provenances and provenances by site interaction for growth characteristics. Provenances superior as early as age one year in the field were usually best at 8,8 years, but the tallest seedlings in the nursery did not maintain superiority in the field. Soil types influenced growth significantly, and provenance x soil type interactions were common. Single-tree plots evaluated provenances much more efficiently than block plots.

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“…attributed to a multiplicative action of locations on the genotype expression. 1980;BORGES, 1980;FREITAS et alii, 1980;l<AGEYAMA, 1980l<AGEYAMA, e 1983…”

mentioning

confidence: 99%

Variação genética entre progênies dentro de procedências de >i<Eucalyptus saligna>/i< Smith

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“Provenance” Variation in Growth Features ofEucalyptus grandisandEucalyptus salignain South Africa

Cited by 5 publications

References 3 publications

Provenance-type Trials ofEucalyptus grandisandE. salignain South Africa: Eight Year Results

Provenance-type Trials ofEucalyptus grandisandE. salignain South Africa: Eight Year Results

Comparison of Eucalyptus grandis Provenances and Seed Orchards in a Frost Frequent Environment

Variação genética entre progênies dentro de procedências de >i<Eucalyptus saligna>/i< Smith

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