Publication Date
1997
Description
The DM productivity in contrasting environments of 118 Leucaena accessions was evaluated in sub-tropical Australia over a 2 year period. Harvests were timed to coincide with hot/wet and cool/dry seasons and data were analysed to compare growth in these environments. Eleven accession groups were identified by cluster analysis. Group 1, which contained F1 and F4 interspecific hybrids, were highly productive in all environments. Growth of L. leucocephala accessions was severely checked by psyllids in hot/ wet environments. Four groups comprising 60 accessions were unproductive in all environments. Identification of specific adaptation to cold temperature within groups in psyllid susceptible accessions was confounded because low psyllid pressure occurred only in the cold environment.
Citation
Mullen, B F. and Shelton, H M., "Agronomic Performance of 118 Leucaena Accessions in the Subtropical Environment of Southeast Queensland, Australia" (2024). IGC Proceedings (1993-2023). 9.
https://uknowledge.uky.edu/igc/1997/session28/9
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Agronomic Performance of 118 Leucaena Accessions in the Subtropical Environment of Southeast Queensland, Australia
The DM productivity in contrasting environments of 118 Leucaena accessions was evaluated in sub-tropical Australia over a 2 year period. Harvests were timed to coincide with hot/wet and cool/dry seasons and data were analysed to compare growth in these environments. Eleven accession groups were identified by cluster analysis. Group 1, which contained F1 and F4 interspecific hybrids, were highly productive in all environments. Growth of L. leucocephala accessions was severely checked by psyllids in hot/ wet environments. Four groups comprising 60 accessions were unproductive in all environments. Identification of specific adaptation to cold temperature within groups in psyllid susceptible accessions was confounded because low psyllid pressure occurred only in the cold environment.
