闽南山地交趾黄檀家系早期选择

Early Selection of High Quality Families of D albergia cochinchinensis Pierre in Southern Fujian Mountainous Areas

为了发展高价值红木交趾黄檀,于2019—2022年福建省平和天马国有林场,对从泰国引进的50个交趾黄檀家系开展家系测定试验。结果表明,4年生交趾黄檀50个家系间林分群体保存率、地径差异极显著,树高、冠幅、风害指数等指标差异显著,平均保存率80.6%~100%,平均地径4.84~6.95 cm,平均树高3.77~5.04 m,平均冠幅1.71~2.25 m,风害指数5.6%~45.1%。用隶属函数法对各家系保存率、地径、树高、冠幅和风害指数等因子进行综合评价,得分最高的是35号家系,综合得分0.79;得分最低的是17号家系,综合得分0.22。按20%入选率进行优质家系选择,初步选出35、22、48、18、10、8、6、9、49、14、11号等11个优质家系,综合得分0.58~0.79,比总体得分平均值(0.47)提高23.4%~68.1%,选出的家系生长表现良好,适应性和抗逆性强,可以在生产上推广应用。

From 2019 to 2022,in order to develop high-value rosewood Dalbergia cochinchinensis Pierre,Pinghe Tianma State-owned Forest Farm in Fujian Province introduced 50 familiesfrom Thailand to carry out the family determination test.The results of the investigation of the 4-year-old family trial forest showed that there were significant differences in the stand population conservation rate and ground diameter index among the 50 families;there are significant differences in tree height,crown width,wind damage index and other indicators.The average preservation rate is 80.6%~100%,the average ground diameter is 4.84~6.95 cm,the average tree height is 3.77~5.04 m,the average crown width is 1.71~2.25 m,and the wind damage index is 5.6%~45.1%.The preservation rate,ground diameter,tree height,crown width and wind damage index of each family were comprehensively evaluated by the method of membership function.The highest score was 35 families,with a comprehensive score of 0.79;the lowest score is 17 families,with a comprehensive score of 0.22.According to the selection rate of 20%,11 high-quality families including 35,22,48,18,10,8,6,9,49,14 and 11 were selected,with a comprehensive score of 0.58~0.79,23.4%~68.1%higher than the average overall score(0.47).The selected families have good growth performance,strong adaptability and resistance,and can be popularized and applied in production.