Provenance Test on Growth Evaluation of Teak in Honghe

35 teak provenances were test in Hekou County,Honghe Prefecture,Yunnan Province.At the age of 5,there are remarkable differences in H(height)and DBH among provenances in which 16 surpassed standard provenance(average level)in H and 17 in DBH.Based on criterion for selection 10% over the standard provenance in DBH and 40% over in volumeprovenance 8507,8602,8603,8021,1307,8022,85131,8508 were considered fine.Meanwhile,the average reeal gain of the fine provenances in H,DBH and volume accounted for respectively 17.0%,19.9% and 70.3%,and their expectation genetic gains in H,DBH and volume were separately 10.0%,11.4% and 45.8%.The real gains in volume of the best two provenances came up to 128% and 107% separately.Because of highly closed growth interrelation among ages,selection at early stage would be efficient.