磷酸二氢钠对甜菜种子引发的影响  

Effect of Sodium Dihydrogen Phosphate on Initiation of Sugar Beet Seeds

作　　者：王璐洋 胡华兵 王荣华 王茂芊[1] WANG Luyang;HU Huabing;WANG Ronghua;WANG Maoqian(School of Modern Agriculture and Ecological Environment,Heilongjiang University,Harbin 150080;Shihezi Agricultural Science Research Institute,Shihezi,Xinjiang 832000)

机构地区：[1]黑龙江大学现代农业与生态环境学院,哈尔滨150080 [2]石河子农业科学研究院,新疆石河子832000

出　　处：《中国农学通报》2024年第33期61-67,共7页Chinese Agricultural Science Bulletin

基　　金：国家糖料产业技术体系子项目“甜菜抗根腐病及抗丛根病品种筛选与鉴定”(CARS-17011004);国家糖料产业体系子项目“甜菜优良单胚不育系选育与优势组合创新”(CARS-170113-1);国家糖料产业体系项目“甜菜种质资源鉴定与新种质创制”(CARS-170102);国家自然基金面上项目“转录因子BvERF61调控甜菜耐盐分子机制研究”(32272148);黑龙江省博士后面上项目“不同根冠比甜菜转录组-蛋白组联合分析”(LBH-Z22246)。

摘　　要：本研究旨在探讨磷酸二氢钠不同处理对甜菜种子活力的影响,以筛选出新的甜菜种子包衣材料。选取‘TD801’甜菜种子作为试验材料,设定磷酸二氢钠的浓度为10、15、20 mmol/L,浸泡时间为8、16、24 h(未经处理的干种子作为CK)对甜菜种子进行处理。通过测定发芽指标,探讨了磷酸二氢钠对甜菜种子活力的影响。结果表明,3种浓度的磷酸二氢钠在8、16、24 h处理时,均能有效促进‘TD801’甜菜种子发芽;相较CK,各处理的发芽势和发芽率分别增加6.67%~16.67%、5.66%~15.66%,发芽指数和活力指数分别增加5.25%~98.05%、7.9%~101.29%,各处理的电导率比CK降低28.30%~66.40%。当浓度为10 mmol/L,24 h时,对发芽势和发芽率的效果更好;当浓度为15 mmol/L,24 h时,对发芽指数和活力指数的影响较好;浓度10 mmol/L,时间为24 h对相对电导率效果更好。磷酸二氢钠能够促进甜菜种子萌发,浓度为10 mmol/L、15 mmol/L,浸泡时间为24 h的磷酸二氢钠处理效果最佳。The aim is to study the effect of different treatments of sodium dihydrogen phosphate on the vigor of sugar beet seeds,so as to screen a new sugar beet seed coating material.The'TD801'sugar beet seeds were selected as the experimental materials,and treated with sodium dihydrogen phosphate at concentrations of 10,15,and 20 mmol/L for soaking durations of 8,16,and 24 hours,respectively.The untreated dry seeds served as the control group(CK).By measuring germination indices,the effect of sodium dihydrogen phosphate on the vigor of sugar beet seeds was investigated.The results showed that sodium dihydrogen phosphate at all three concentrations(10,15,and 20 mmol/L)significantly promoted the germination of'TD801'sugar beet seeds when treated for 8,16,and 24 hours.Compared to the untreated control(CK),the germination potential and germination rate of the treated seeds were increased by 6.67%-16.67%and 5.66%-15.66%,respectively.The germination index and vigor index were increased by 5.25%-98.05%and 7.9%-101.29%,respectively.Additionally,the electrical conductivity of the treated seeds was lower than that of the CK by 28.30%to 66.40%.At a concentration of 10 mmol/L for 24 hours,the effect on germination potential and germination rate was more pronounced.When the concentration was 15 mmol/L for 24 hours,the impact on the germination index and vigor index was better.A concentration of 10 mmol/L for 24 hours also showed a more significant effect on reducing the relative electrical conductivity.Sodium dihydrogen phosphate was found to promote the germination of sugar beet seeds,with the optimal treatment being a concentration of 10 mmol/L or 15 mmol/L,and a soaking duration of 24 hours.

关 键 词：甜菜种子 磷酸二氢钠 种子引发 电导率 差异分析 发芽指标 活力影响 

分 类 号：S566.3[农业科学—作物学]