扦插季节与生根剂对油茶扦插育苗效果的影响

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中图分类号：S722.3；S794.4 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.06.007

Effects of Cutting Season and Rooting Agent on Cutting Propagation Effect of Camellia oleifera

Liao Yingying （State-owned Red Star Forest Farm in Heyuan City，Heyuan 5l7ooo，China）

AbstractAiming at the limitations of traditional cuting season selectionand rooting agent application，8-year-old superior varieties of Camellia oleifera were used as materials.Through a two-factor completely randomized block experiment，the effects of cutting seasons （spring，summer，autumn） and rooting agents （ 100mg ⋅L-1NAA+IBA ， 100mg ⋅L-1 NAA， 100mg ⋅L-1IBA ） on the rooting dynamics and seedling quality of cuttings were systematically explored.The results showed that there was a significant interactive effect between season and rooting agent.The treatment（T5） of cutting in summer （July） combined with 100mg ⋅L-1NAA exhibited the best comprehensive performance：the rooting rate reached 89.5% ，and the number of roots（7.9 roots），root length （ ：6.3cm ），seedling height （ 28.3cm ），and chlorophyll SPAD value （39.2） were allsignificantly higher than those of other treatments. NAA could significantly improve the rooting eficiencyof cutings，and its root-promoting effect was bettr than that of IBA and the mixed hormone treatment of NAA+IBA . Summer could promote cutting rooting and seedling growth，followed by autumn cutings，while spring cuttings showed the worst effect.The comprehensive score of T5 was1.591，which was significantlybetter than thatof other treatment combinations.The adaptation of high temperature i summer and NAA hormone could significantly improve the effect of Camellia oleifera cutting propagation.

Key words Camellia oleifera ;cutting;rooting agents;cutting time

油茶（Camelliaoleifera）作为我国重要的木本油料树种，其种仁含油量高达 40% 以上，富含不饱和脂肪酸，兼具食用、药用及工业价值，是南方山区乡村振兴的战略性资源[1]。（剩余4623字）