Genetic variation of growth and log end-splitting in second-generation <i>Eucalyptus grandis</i> in Sri Lanka

Bandara, K. M. A.; Arnold, R. J.

doi:10.1080/00049158.2017.1347982

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…If other provenances (e.g. Atherton Tableland sources) of E. grandis were tested, more interprovenance variation would be expected (Eldridge et al 1993, Bandara andArnold 2017). Another issue is the outcrossing level between seed sources.…”

Section: Resultsmentioning

confidence: 99%

“…grandis is an important species of commercial forest plantations and thus has been subject to genetic improvement programs for many decades in several countries, e.g. South Africa (van Wyk 1976), Australia (Burgess et al 1996), Brazil (Ferreira 2015), Sri Lanka (Bandara and Arnold 2017) with improvements in generations by recurrent selection and open pollinated breeding. However, the species is susceptible to several diseases in some environmental conditions, namely Cryphonectria cubensis (eucalypt canker); Cylindrocladium leaf blight; and Astropuccinia psidii (eucalypt rust) (Conradie et al 1992, Rodas et al 2005.…”

Section: Introductionmentioning

confidence: 99%

“…Eucalypt breeding programs have focused on genotype selection through within and between species variability to ensure the best germplasm for plantation establishment (Gapare et al 2003, Bandara and Arnold 2017. Genetic variability is essential, not only for advancing genetic gain, but also as a buffer for various threats, such as pests, diseases and climate change (Jurskis 2005, Wingfield et al 2008, Brawner et al 2013.…”

Section: Introductionmentioning

confidence: 99%

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Selection of Eucalyptus grandis families across contrasting environmental conditions

Silva

Marcó²,

Álvares

et al. 2019

Crop Breed. Appl. Biotechnol.

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The objective was to select productive and stable E. grandis families across contrasting sites in Brazil and Uruguay. Survival and growth of 130 open pollinated families were evaluated three years after planting. Survival ranged from 28 to 89% and mean annual increment from 20.5 to 48.4 m 3 hay-1. Low productivity in one site was attributed to unusually low rainfall and in the other, because of Cylindrocladium leaf disease. Heritability among families and the correlation family by environment were intermediate. Genetic pairwise correlations ranged from 0.03 to 0.81 across sites. The lowest genetic correlation between sites was observed where Cylindrocladium leaf disease occurs. Selection of top families across sites allowed selecting the best ones in each site. However, the effect of genotype-environment interactions was observed where climatic conditions are not adequate to the E. grandis, favoring the occurrence of Cylindrocladium disease.

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Section: Resultsmentioning

confidence: 99%