热带农业科学2026，Vol.46Issue(4)：35-39,5.DOI:10.12008/j.issn.1009-2196.2026.04.005
奇楠沉香化学调控花果技术研究
Study on the Chemical Regulation Technology of Flowers and Fruits of Aquilaria sinensis'Qinan'
摘要
Abstract
To solve the problem that early and excessive flowering and fruiting of young Aquilaria sinensis'Qinan'trees seriously affect their vegetative growth,3-year-old clones of A.sinensis'Qinan'No.4 were used as test materials.A compl-etely randomized block design was adopted,and seven treatments,including foliar spraying of 3%gibberellin(GA3)solution,were applied to determine the relevant growth traits and fruit weight.The results showed that the differences in flowerless vegetative branch rate,green fruit weight,tree height,crown width,and spring shoot length among treatments were extremely significant(p<0.01),and the difference in ground diameter was significant(p<0.05).The average flowerless vegetative branch rate was 75.07%,the average green fruit weight was 55.54 g·plant-1,the average ground diameter was 4.65 cm,the average height was 2.24 m,the average crown width was 1.63 m,and the average spring shoot length was 16.60 cm.Foliar spraying of different concentrations of gibberellin mixtures had distinct effects on promoting vegetative growth and inhibiting reproduc-tive growth.Among them,treatments A1～A4(a mixture of 3%gibberellin which 600、300、200、150 times and urea diluted 200 times,spraying twice)were the optimal formulas.Compared with CK,the average flowerless vegetative branch rate,green fruit weight,ground diameter,tree height,crown width,and spring shoot length of these treatments increased by 99.31%,-100.00%,19.71%,35.39%,36.61%,and 46.72%,respectively.Treatment A6 also had a good effect;compared with CK,its av-erage flowerless vegetative branch rate increased by 98.20%,and its green fruit weight increased by-97.10%.Although the effect of treatment A6(A mixture of 3%gibberellin at 150 times dilution and urea at 200 times dilution,spray once)on inhibiting flow-ering and fruiting was slightly worse than that of treatments A1～A4,with a small amount of flowering and fruiting occurring on the plants,the small amount of flowers and fruits did not affect the vegetative growth of the plants.Therefore,to reduce workload and cost,it is recommended that in production,only one foliar spray of the mixture of 3%gibberellin diluted 150 times and urea diluted 200 times is needed for A.sinensis'Qinan'to achieve good results.关键词
奇楠沉香/生长调节剂/营养生长/生殖生长/控花控果Key words
Aquilaria sinensis'Qinan'/growth regulator/vegetative growth/reproductive growth/flower and fruit regulation分类
农业科技引用本文复制引用
吴庆全..奇楠沉香化学调控花果技术研究[J].热带农业科学,2026,46(4):35-39,5.基金项目
福建省林业科研项目(No.闽林文[2022]52号). （No.闽林文[2022]52号）
