| Citation: |
CHEN Huanwei, JI Jingyong, YE Linyan, SHEN Bin, CAI Chao, LUO Zhensha, CAO Sen. Analysis of Growth and Leaf Morphological Variation of Ormosia hosiei from Different Origins and Selection of Excellent Strains[J]. Journal of Zhejiang Forestry Science and Technology, 2025, 45(1): 73-81. DOI: 10.3969/j.issn.1001-3776.2025.01.010
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By revealing the extent and pattern of phenotypic differentiation in growth and leaf morphology among different provenances of O. hosiei, this study provides theoretical guidance for selecting superior genetic resources. Thirty-eight O. hosiei provenances from four provinces （Jiangxi, Zhejiang, Fujian, and Sichuan） were selected for phenotypic characterization of growth and leaf traits through differential analysis and diversity study. Results showed significant variations in growth and leaf traits among different provenances, with all phenotypic coefficients of variation exceeding 10%, indicating rich variability across provenances for all traits. Specifically, O. hosiei from Sichuan exhibited distinctive phenotypic characteristics, with inferior growth traits including tree height （3.01 m）, east-west canopy width （1.31 m）, and north-south canopy width （1.35 m） significantly lower than those from the other three provinces （p<0.01）, but superior leaf development traits including leaf area （23.56 cm2）, leaf perimeter （16.21 cm）, leaf length （11.57 cm）, and leaf width （5.50 cm） significantly higher than those from the other three provenances （p<0.01）, indicating moderate overall growth but larger leaves for Sichuan provenances. Correlation analysis revealed highly significant positive correlations between growth and leaf traits, providing a basis for targeted selection of superior germplasm. Cluster analysis categorized O. hosiei populations into five groups, which largely corresponded to their geographical origins. Finally, eight superior O. hosiei provenances were identified based on growth trait data including tree height, diameter at breast height, and canopy width, providing theoretical and material foundations for the breeding of elite O. hosiei varieties.
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