火炬松(Pinux taeda L.)和湿地松(Pinus elliottii Engelm)是我国南方重要的外引用材树种,经过多年的试验研究,已选出一批较好的种源、家系和单株,并建立了种子园。当前早期鉴定和早期选择已成为必不可少的一项研究内容,近几年来越来越多的研究者指出,林木幼龄期的某些性状或生理生化指标与成熟期性状之间存在一定的相关性,认为树木生长的早期选择是可能的,尤其从生理生化方面来探索林木早期预测的研究已引起人们的高度重视。但 Pinus taeda L. and Pinus elliottii Engelm are important species of wood in China. After years of experimental research, a number of better provenances, families and individuals have been selected and established The seed garden. The current early identification and early selection has become an indispensable part of the research. In recent years, more and more researchers have pointed out that there are certain relationships between some traits or physiological and biochemical indexes of young trees and maturity traits It is considered that the early selection of tree growth is possible. Especially, the research on the early prediction of forest tree from the aspects of physiology and biochemistry has drawn great attention. but