摘要
本研究旨在探讨不同浓度赤藓糖醇对甜菜种子'TD801'发芽特性的影响,以期为甜菜种子包衣技术提供科学依据.实验设计包括3个赤藓糖醇浓度(5、7.5、10 mmol/L)和3个处理时间梯度(8、16、24h),形成9组不同的处理条件.通过与对照组(CK)比较,分析各处理条件下的种子发芽势、发芽率、发芽指数、活力指数以及相对电导率等指标变化.实验结果表明,所有处理组相较于对照组均显示出促进甜菜种子引发的效果.具体而言,处理后种子的发芽势较对照提高了4个百分点,最高12.33个百分点;发芽率比对照CK提高最低9个百分点,最高12个百分点;发芽指数比对照CK提高最低28.92％,最高60.74％;活力指数比对照CK提高最低69.45％,最高116.81％;相对电导率与对照CK比较均有降低,最低下降58.26个百分点,最高下降83.10个百分点.当浓度为5 mmol/L,8 h时,对提升发芽势效果较好;当浓度为5 mmol/L,24 h时,发芽率的效果更好;当浓度为5 mmol/L,16 h时,对发芽指数和活力指数的影响较好;浓度为10mmol/L,时间为24h对相对电导率效果更好.综上所述,赤藓糖醇处理能够有效提高甜菜种子的萌发性能,其中以5 mmol/L浓度和16 h的处理时间最为显著,为甜菜种子包衣提供了重要的参考信息.
Abstract
To assess the impact of varying erythritol levels on seed germination and to provide a foundation for selecting sugar beet seed coating,the seeds of sugar beet'TD801'were used as the test material in this study.The three concentration gradients(5,7.5,10 mmol/L)and three hour time gradients(8,16,and 24 h)were set up,and then 9 treatments were used to determined the indexes.The germination potential was increased by 4％-12.33％in comparison to the control CK;the rate of germination was raised by 9％-12％compared to the control CK;and the germination index was also augmented by 28.92％-60.74％compared with the control CK;the vitality index was increased by 69.45％-116.81％compared with the control CK;and the relative electrical conductivity was decreased by 58.26％-83.10％compared with the control CK.When the concentration was 5 mmol/L for 8 h,it had a better effect on improving germination potential;when the concentration was 5 mmol/L for 24 h,the effect of germination rate was better;when the concentration was 5 mmol/L for 16 h,it had a better effect on germination index and vitality index;when the concentration was 10 mmol/L for 24 h,it had a better effect on the relative electrical conductivity.The 9 treatments had the effect of promoting the initiation of sugar beet seeds,and a greater overall effect on seed germination of sugar beet was observed when the concentration of erythritol solution was 5 mmol/L for 16 hours.
基金项目
国家糖料产业技术体系子项目(CARS-17011004)
国家糖料产业体系项目(CARS-170102)
国家自然基金面上项目(32272148)
黑龙江省省属高等学校基本科研业务费(2021-KYYWF-0022)
国家科技期刊平台
NSTL
万方数据