Study on the Variation in Growth Traits of Cupressus funebris
Objective] This study aimed to investigate the variation in growth traits of Cupressus funebris in Chongqing Municipality, thus laying the foundation for further breeding and improvement of fine varieties. [Method] Growth traits of three fine stands of C. funebris in Qijiang, Pengshui and Youyang of Chongqing Municipality were in-vestigated. [Result] The results showed that C. funebris stand in Pengshui exhibited the best growth performance, fol owed by C. funebris stand in Qijiang; C. funebris stand in Youyang exhibited the poorest growth performance. The average volume growth of C. funebris in Pengshui, Qijiang and Youyang was 0.14, 0.11 and 0.06 m3, respectively. Among different stands, variation coefficients of major growth traits were above 11.31%, and the maximum variation coefficient of the volume was 39.11%; within the stands, variation coefficients of plant height were basical y the same (about 20%). The variation coefficient of diameter at breast height in Qijiang reached the maximum of 42.42%, fol owed by that in Youyang. The variation coeffi-cients of volume and diameter at breast height were consistent; seed bearing coeffi-cient (SBC) of C. funebris stand in Pengshui exhibited the maximum variation, which indicated that C. funebris stand in Pengshui was conducive to establishing seed stands and constructing seed orchard by using the selected stands. [Conclu-sion] lt is necessary to conduct provenance selection.
NETL
NSTL
万方数据
维普
