CAJ | 학술논문

以湖北江汉平原引种贵州的滇楸雄性不育无性系为材料，分别对1～2年生嫁接苗的胸径和树高性状进行苗期测定。结果表明，1年生滇楸无性系平均胸径和树高为2．490 cm和2．943 m，2年生平均胸径和树高达到4．289 cm和4．220 m；方差分析显示，不同无性系间在不同林龄时胸径和树高的差异均达到极显著水平；滇楸无性系2年生胸径、树高的重复力分别为71．21％和64．07％；以胸径和树高为指标，采用加权系数选择指数法对不同无性系进行评价，综合2年的选择指数I值，初选出6个优良滇楸无性系，入选率为20％。
이호북강한평원인충귀주적전추웅성불육무성계위재료，분별대1～2년생가접묘적흉경화수고성상진행묘기측정。결과표명，1년생전추무성계평균흉경화수고위2．490 cm화2．943 m，2년생평균흉경화수고체도4．289 cm화4．220 m；방차분석현시，불동무성계간재불동림령시흉경화수고적차이균체도겁현저수평；전추무성계2년생흉경、수고적중복력분별위71．21％화64．07％；이흉경화수고위지표，채용가권계수선택지수법대불동무성계진행평개，종합2년적선택지수I치，초선출6개우량전추무성계，입선솔위20％。
Selection of 1-year and 2-year old male sterile clones of Catalpa fargesii f.duclouxii in Jianghan plain Hubei which introduced from Guizhou as materials to measure tree DBH and height.The results showed that the average diameter and height of 1-year old clones were 2.490 cm and 2.943 m,and 2-year old clones were 4.289 cm and 4.220 m,respectively.The results of ANOVA showed that the growth variation in different stand age was significant among clones.The repeatability of diameter and height for 2-year old clones were 7 1.2 1% and 64.07%,respectively.DBH and height were taken as indexes,and weighted coefficient method was applied to es-timate.Finally,6 fine clones were chosen,the selection rate was 20%.