湖南农业科学Issue(4)：12-15,4.DOI:10.16498/j.cnki.hnnykx.2025.004.003
温度和赤霉素对黄精种子萌发和生长的影响
Effects of Temperature and Gibberellin A3 on Seed Germination and Seedling Growth of Polygonatum sibiricum
摘要
Abstract
To address the low rate and the long time consumption of seed germination in the sexual breeding of Polygonatum sibiricum in Fujian,this study investigated the effects of different temperatures(4℃,20℃,25℃,30℃,room temperature,and variable temperature)and different concentrations(0,50,100,and 150 mg/L)of gibberellin A3(GA3)on seed germination and seedling growth of P.sibiricum.The results showed that temperature and GA3 significantly affected the seed germination and seedling growth of P.sibiricum.In the temperature test,the germination rate and germination potential reached the highest levels of 80.67%and 69.33%,respectively,after the seeds were soaked in the water at 45℃for 24 h and incubated at 25℃.Moreover,the seeds treated under this condition showed uniform germination,short germination delay,the shortest time consumption of germination,and good quality of buds.In the GA3 concentration test,when the concentration of GA3 was 50 mg/L,the germination rate and germination potential were the highest at 84.00%and 73.33%,respectively,which had no significant differences from those in the 100 mg/L GA3 group.As the concentration of GA3 increased,the seed germination delay gradually increased.The 100 mg/L GA3 group demonstrated the best growth-promoting effect,with the maximum primary bulb diameter of 3.50 mm and the most lateral roots(3.6).关键词
黄精/温度/赤霉素/种子萌发Key words
Polygonatum sibiricum/temperature/gibberellin A3/seed germination分类
农业科技引用本文复制引用
郭位贤,黄孝忠,周建金..温度和赤霉素对黄精种子萌发和生长的影响[J].湖南农业科学,2025,(4):12-15,4.基金项目
福建省星火计划项目(No.2023S0069) （No.2023S0069）
