Ml. Merwin et al., PROVENANCE AND PROGENY VARIATION IN GROWTH AND FROST TOLERANCE OF CASUARINA-CUNNINGHAMIANA IN CALIFORNIA, USA, Forest ecology and management, 79(3), 1995, pp. 161-171
Field trials of Casuarina cunninghamiana, including 130 open-pollinate
d families from 13 provenances in New South Wales, Australia, were est
ablished in 1987 at five field sites in California, USA. Based on grow
th and survival at 60 months after planting, significant genetic varia
tion was observed both between and within provenances. Significant dif
ferences among provenances were also observed in frost injury rating f
ollowing the occurrence of mid-winter temperatures as low as - 13 degr
ees C. The results of this study indicate that the growth and frost to
lerance of C. cunninghamiana in California can be improved by proper c
hoice of provenance and selection within provenances.