森林与环境学报2025，Vol.45Issue(3)：283-289,7.DOI:10.13324/j.cnki.jfcf.202410017
油茶新品种'德油2号'开花特性及品种配置
Flowering characteristics and configuration of a new Camellia oleifera cultivar'Deyou 2'
摘要
Abstract
Seven new Camellia oleifera cultivars'Deyou 2','Deyou 3','Deyou 4','Deyou 5','Deyou 6','Deyou 7',and'Deyou 8'(DY2,DY3,DY4,DY5,DY6,DY7,and DY8,respectively)were observed for the flowering phenology,the opening process of a single flower,the amount of pollen per flower,and the pollen viability.Artificial pollination was conducted with DY2 as the female parent and other six cultivars as the male parents,and the fruit setting rate,economic traits,and fatty acid components were determined.The flowering period of DY2 was from mid-November to late-December,and the full blooming stage was from late November to mid-December,lasting for 20 days.DY3,DY4,DY7,and DY8 had overlaps in the full blooming stage with DY2.The opening time of a single flower of DY2 was 6-10 days.As for the six pollinated cultivars,the average number of anthers per flower was 80.90-103.20,and the amount of pollen per flower was 413 602-649 102 grains.The pollen viability of the six pollinated cultivars was determined as 65.02%-72.70%by the medium germination method.Principal component analysis and comprehensive evaluation were carried out for the fruit indicators(transverse diameter,longitudinal diameter,peel thickness,fresh mass per fruit,fresh fruit seed yield,dry kernel rate,oil content of dried kernels,fresh fruit oil yield,and relative content of unsaturated fatty acid)and fruit setting rates of six pollination combinations(DY2×DY3,DY2×DY4,DY2×DY5,DY2×DY6,DY2×DY7,DY2×DY8).The scores of the combinations were ranked as DY2×DY4>DY2×DY8>DY2×DY7>DY2×DY5>DY2×DY3>DY2×DY6.DY2 had the best pollination effect with DY4 as the male parent.关键词
油茶/品种配置/花粉活力/坐果率/果实性状/主成分分析Key words
Camellia oleifera/cultivar configuration/pollen viability/fruit setting rate/fruit trait/principal component analysis分类
林学引用本文复制引用
贺胜,胡观兴,胡东兵,鲁建军,袁德义..油茶新品种'德油2号'开花特性及品种配置[J].森林与环境学报,2025,45(3):283-289,7.基金项目
湖南省种业创新项目"油茶体细胞杂交及倍性育种技术研究与新种质创新"(2021NK1007). （2021NK1007）
