Publication Date
1993
Description
Shtteen lines from 2 families of Leucaena leucocephala-L. diversifolia hybrids selected for acid-soil tolerance in Brazil were reselected in the Kuala Linggi acid-sulphate soil and Serdang oxisol in Malaysia. In the K. Linggi soil with 81 % Al saturation, highly acid-tolerant hybrids were selected with 35-79% more growth than the intolerant cv. Cunningham. At Serdang the oxisol had ·a mean 68% Al saturation and hybrids were selected with 19-49% more growth than Cunningham which lacked intolerance symptoms due to annual dolomite application. In a severe psyllid infestation at K. Linggi, 5 of the 14 hybrids from one family had psyllid tolerance while the rest and Cunningham were severely attacked, Both hybrids from the other family were tolerant. The programme has the potential to release vigorous leucaenas with tolerance to both acid soils and psyllids.
Citation
Hutton, E M. and Chen, Chin Peng, "Meeting the Challenge of Adapting Leucaena leucocephala to the Acid Oxisols and Utisolds of South America and South-East Asia" (2025). IGC Proceedings (1993-2023). 5.
https://uknowledge.uky.edu/igc/1993/session59/5
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Meeting the Challenge of Adapting Leucaena leucocephala to the Acid Oxisols and Utisolds of South America and South-East Asia
Shtteen lines from 2 families of Leucaena leucocephala-L. diversifolia hybrids selected for acid-soil tolerance in Brazil were reselected in the Kuala Linggi acid-sulphate soil and Serdang oxisol in Malaysia. In the K. Linggi soil with 81 % Al saturation, highly acid-tolerant hybrids were selected with 35-79% more growth than the intolerant cv. Cunningham. At Serdang the oxisol had ·a mean 68% Al saturation and hybrids were selected with 19-49% more growth than Cunningham which lacked intolerance symptoms due to annual dolomite application. In a severe psyllid infestation at K. Linggi, 5 of the 14 hybrids from one family had psyllid tolerance while the rest and Cunningham were severely attacked, Both hybrids from the other family were tolerant. The programme has the potential to release vigorous leucaenas with tolerance to both acid soils and psyllids.
