GA_(3)对不同磨光量甜菜种子萌发的影响  

Effect of GA_(3)on Germination of Sugar Beet Seeds with Different Polishing

作　　者：王仁汉 屈旭 宋志美 刘少云 胡海洲 郑文哲 WANG Renhan;QU Xu;SONG Zhimei;LIU Shaoyun;HU Haizhou;ZHENG Wenzhe(Qingdao Zhongyan Seed Co.,Ltd.,Qingdao,Shandong 266100;Inner Mongolia Academy of Agricultural&Animal HusbandrySciences,Hohhot 010031)

机构地区：[1]青岛中烟种子有限责任公司,山东青岛266100 [2]内蒙古自治区农牧业科学院,呼和浩特010031

出　　处：《中国糖料》2024年第1期42-47,共6页Sugar Crops of China

基　　金：财政部和农业农村部国家现代农业产业技术体系(糖料)建设项目(CARS-170114)资助。

摘　　要：【目的】在甜菜种子加工过程中,通常需要磨光和浸种。为探究磨光量、GA_(3)浓度、浸种时间对甜菜种子萌发的影响。【方法】设置了5个磨光量、5个GA_(3)浓度、3个浸种时间,对甜菜种子进行引发试验。【结果】结果表明,100 mg/L GA_(3)浸种8 h,大(B)、中(M)种子的发芽势较其0 mg/L GA_(3)处理分别提高6.59%、10.04%,发芽率分别提高6.19%、9.56%;GA_(3)浓度为100 mg/L和200 mg/L时,B、M种子平均发芽时间较低,GA_(3)可加速种子萌发;100 mg/L GA_(3)浸种8 h,种子的发芽势、发芽率、发芽指数分别比其0 h处理提高10.48%、5.51%、88.12%,其发芽率显著高于16 h处理(P<0.05)。GA_(3)浓度和种子磨光、浸种时间和种子磨光量双因素方差分析表明,两因素交互显著影响种子主要萌发指标。【结论】100 mg/L GA_(3)浸种8 h,对较大粒径的B、M甜菜种子的萌发效果最好。【Objective】In seed processing of sugar beet,polishing and seed soaking are usually required.To study the effects of polishing level,GA_(3)concentration and soaking time on sugar beet seed germination.【Methods】Five different polishing levels,five different GA_(3)concentrations and three different soaking times were set for sugar beet seeds.【Results】The results showed that,compared with the treatment under 0 mg/L GA_(3),soaking seeds of large(B)and medium(M)sugar beet in 100 mg/L GA_(3)for 8 hours,germination potential improved by 6.59%and 10.04%,respectively;and their germination rates improved by 6.19%and 9.56%,respectively.Concentrations of 100 and 200 mg/L GA_(3)reduced the average germination time of seeds of B and M,and GA_(3)accelerated seed germination.Soaking seeds in 100 mg/L GA_(3)for 8 hours leaded to an increase of 10.48%,5.51%and 88.12%in germination potential,germination rate and germination index,respectively,compared to those treated by 0 hours,with its germination rate significantly higher than that of those treated for 16 hours(P<0.05).A two-factor ANOVA of GA_(3)concentration and seed polishing,soaking time and seed polishing level showed that the two factors interact significantly to affect the main germination indicators of seeds.【Conclusion】Soaking B and M sugar beet seeds with larger particle sizes in 100 mg/L GA_(3)for 8 hours had the best effect on seed germination.

关 键 词：甜菜 种子 磨光量 赤霉素 浸种时间 

分 类 号：S566.3[农业科学—作物学]