文献类型：期刊文献

英文题名：The importance of proleptic branch traits in biomass production of poplar in high-density plantations

作者：Ding, Changjun[1,2] Wang, Ningning[3,4] Huang, Qinjun[1,2] Zhang, Weixi[1,2] Huang, Juan[1,2] Yan, Suli[3,4] Chen, Boyi[3,4] Liang, Dejun[5] Dong, Yufeng[6] Shen, Yingbai[3,4] Su, Xiaohua[1,2]

第一作者：丁昌俊

通信作者：Su, XH[1];Su, XH[2];Shen, YB[3];Shen, YB[4]|[a0005af9bc02893cd3fd3]沈应柏;

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry Adm, Beijing, Peoples R China;[3]Beijing Forestry Univ, Coll Biol Sci & Technol, Beijing 100083, Peoples R China;[4]Beijing Forestry Univ, Natl Engn Lab Tree Breeding, Beijing 100083, Peoples R China;[5]Liaoning Prov Poplar Inst, Gaizhou 115200, Liaoning, Peoples R China;[6]Shandong Acad Forestry, Shandong Prov Key Lab Forest Tree Genet Improveme, Jinan 250014, Shandong, Peoples R China

年份：2022

卷号：33

期号：2

起止页码：463-473

外文期刊名：JOURNAL OF FORESTRY RESEARCH

收录：;EI(收录号：20233414603910);Scopus(收录号：2-s2.0-85119496115);WOS:【SCI-EXPANDED(收录号:WOS:000720580800001)】；

基金：This work was supported by the National Key Research and Development Program of China (Grant No. 2016YFD0600401), the Basic Research Fund of RIF (Grant No. CAFYBB2017ZA001-3), and the 12th 5-Year National Science and Technology Support Program (2012BAD01B03).

语种：英文

外文关键词：Populous; Crown architecture; Sylleptic branch; Proleptic branch; Biomass production; Terrestrial laser scanner

摘要：Branch phenotypic traits determine tree crown architecture, which in turn governs leaf display, light interception, and biomass production. Sylleptic and proleptic branches are the obviously different branch phenotypes in the poplar crown. Many studies have focused on the influence of sylleptic branch numbers (SBN) on biomass production, but the research on the influence of proleptic branch phenotypes was only a few. To explore the relationship between proleptic branch traits and biomass generation production in a high-density poplar plantation, we investigated the branch phenotypic traits of three poplar genotypes, all of which have high survival rates in forests (> 95%) and significantly different crown architecture and biomass performance in the high-density plantations (1667 stems ha(-1)). The plantation site was established in 2007. A terrestrial laser scanner was used to measure branch characteristics such as length, angle of origin and termination, and azimuth angle. A hierarchical cluster analysis performed on branch characteristics showed that SBN, crown depth, and proleptic branch curvature (PBC) were clustered with biomass production and leaf area index (LAI). Among all of the monitored traits, PBC played the second most important role in biomass production after SBN and was significantly correlated with SBN, LAI, and biomass production. The positive correlation between PBC and SBN indicated that a larger PBC was associated with more sylleptic branches within the monitored genotypes planted in the high-density plantation, providing greater leaf area and biomass production. The results of this study will improve the identification of high-production poplar varieties for cultivation in high-density plantations for biofuel production.