CAJ | 학술논문

为进行材用青钱柳优良家系的早期选择，以4年生的青钱柳7个家系为试验对象，开展了青钱柳幼龄期生长速率、微纤丝角、基本密度及结晶度家系间变异的研究。结果表明，青钱柳早期的胸径生长、微纤丝角、木材的基本密度和木材结晶度在家系之间都存在显著差异。不同家系青钱柳的平均胸径在4．93～6．47 cm之间；微纤丝角的变异幅度为19．0°～30．6°，且随着年龄的增大，微纤丝角呈现递减的变化趋势；木材基本密度和结晶度的变化范围分别为0．441～0．547 g/cm3和37．63％～46．62％。胸径生长和木材性质的变异主要来源于种源。相关分析表明：胸径生长与基本密度呈现微弱负相关，与结晶度呈极显著负相关，与微纤丝角呈显著正相关；而木材性质中除结晶度和微纤丝角呈极显著负相关外，其他木材性质间相关性较弱。因此，在种源层次进行材用青钱柳优良家系的选择可能更加有效。
위진행재용청전류우량가계적조기선택，이4년생적청전류7개가계위시험대상，개전료청전류유령기생장속솔、미섬사각、기본밀도급결정도가계간변이적연구。결과표명，청전류조기적흉경생장、미섬사각、목재적기본밀도화목재결정도재가계지간도존재현저차이。불동가계청전류적평균흉경재4．93～6．47 cm지간；미섬사각적변이폭도위19．0°～30．6°，차수착년령적증대，미섬사각정현체감적변화추세；목재기본밀도화결정도적변화범위분별위0．441～0．547 g/cm3화37．63％～46．62％。흉경생장화목재성질적변이주요래원우충원。상관분석표명：흉경생장여기본밀도정현미약부상관，여결정도정겁현저부상관，여미섬사각정현저정상관；이목재성질중제결정도화미섬사각정겁현저부상관외，기타목재성질간상관성교약。인차，재충원층차진행재용청전류우량가계적선택가능경가유효。
To select superior families of juvenile Cyclocarya paliurus, seven families of four-year-old C. paliurus were se-lected as test materials. The variation in growth rate, microfibril angle, basic density and crystallinity were studied. The results indicated that there was a significant difference in diameter at breast height ( DBH) , microfibril angle, basic den-sity and crystallinity among the seven families. The average DBH ranged from 4.93 to 6.47 cm, while basic intensity and crystallinity were 0.441-0.547 g/cm3 and 37.63%-46.62%, respectively. The microfibril angle ranged from 19.0°to 30?6°, and the value decreased with the age of growth ring increasing. The variance analysis indicated that the variation was mainly from provenances. The DBH showed a weak negative correlation with the basic density, but a highly signifi-cant negative correlation with the crystallinity and a significant positive relationship with the microfibril angle, respective-ly. Furthermore, crystallinity had a highly significant negative correlation with the microfibril angle, but there were no significant correlation among other wood properties. This trial suggested that it may be more effective to select superior families on provenance level.