Provenance variations of mangium (Acacia mangium willd.) in survival and resistance of pests and diseases in the Philippines
1992
Faiziddin, M. | Dalmacio, R.V.
Variations of different provenances of mangium (Acacia mangium wild.) in survival and resistance to pests and diseases under Ilocos Norte, Masbate and Bukidnon conditions of the Philippines were studied. The survival at one and a half years and the resistance to pests and diseases at five years after planting were determined. The results show highly significant variations in per cent survival among provenances under Masbate and Bukidnon conditions and in resistance to pests and diseases under Ilocos Norte and Bukidnon conditions. The survival was the highest in the provenances 13622 (Sidei, Indonesia) in Masbate and 13232 (Cowley Beach Road, Qld) in Bukidnon. The best provenances resistant to pests and diseases were 13229 (Claudie River, Qld) in Ilocos Norte and 13236 (Kurrimine, Qld) in Bukidnon.
显示更多 [+] 显示较少 [-]