南洋楹种源家系试验

对21个南洋楹种源/家系进行试验.结果表明:参试种源/家系4.5年生的保存率、生长性状以及形质性状存在显著或极显著差异;通过多性状综合评价,选择出具有较高生长量、较优形质性状和较强适应性的优良种源/家系7个,分别是C9、M15、P10、P6、P2、C1和C6,其中C9、M15表现最佳,4.5年生平均树高、胸径和材积分别为13.03 m、13.05 cm和0.090 79 m3,分别比对照高出13.90%、9.02%和12.80%,比对照树种马占相思高出26.63%、10.41%和74.92%.

Study of the Test on Paraserianthes falcataria (L.) Nielsen Provenance/Family

Twenty-one provenances/families of Paraserianthes falcataria(L.) Nielsen were tested.The results show that the differences of the preservation rate,growth characteristic and form quality among the provenances/families of 4.5 years were remarkable or highly remarkable.Seven provenances/families,namely,C9,M15,P10,P6,P2,C1 and C6,with the characteristic of high growth,excellent form quality and strong adaptability,were selected by multi-characteristic synthetic evaluation,with C9 and M15 being the best families.Their average height,DBH and volume of 4.5 years were 13.03 m,13.05 cm and 0.090 79 m3 respectively,which were 13.90%,9.02% and 12.81% higher than those of CK respectively,and 26.63%,10.41% and 74.92% higher than those of Acacia mangiurn respectively.Therefore,these superior provenances/families are suggested to be extended for testing in other botanic areas and then to be confirmed for suitable popularization.