镁氢包衣对大豆萌发和幼苗生长的影响  

The effects of seed coating by magnesium hydrides on germination and seedling growth of soybeans

作　　者：杨海燕[1,2] 张秋雨 潘琪芳 初少华[1,3] 杨夕佳[1,3] 韩京龙 周培 丁文江[1,2,4] YANG Haiyan;ZHANG Qiuyu;PAN Qifang;CHU Shaohua;YANG Xijia;HAN Jinglong;ZHOU Pei;DING Wenjiang(Shanghai Key Laboratory of Hydrogen Science&Center of Hydrogen Science,Shanghai Jiao Tong University,Shanghai 200240,China;School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240,China;National Engineering Research Center of Light Alloys Net Forming&State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China;School of Environmental and Material Engineering,Yantai University,Yantai 264005,China)

机构地区：[1]上海市氢科学重点实验室&上海交通大学氢科学中心,上海200240 [2]上海交通大学材料科学与工程学院,上海200240 [3]上海交通大学农业与生物学院,上海200240 [4]上海交通大学轻合金精密成型国家工程研究中心,上海200240 [5]烟台大学环境与材料工程学院,烟台264005

出　　处：《科技导报》2024年第15期58-68,共11页Science & Technology Review

基　　金：国家自然科学基金面上项目(52371195);绍兴市重点攻关榜单项目(2023B42001);上海交通大学氢科学中心双一流项目

摘　　要：利用种子包衣技术将MgH2包衣于大豆,并设置MgO包衣大豆组作阳性对照和无包衣大豆组作阴性对照,系统研究了不同处理对大豆发芽势、发芽率、发芽指数,以及幼苗的地上/地下部鲜重、茎长/粗、总根长、侧根数和叶面积等表型性状的影响。结果表明,包衣对大豆萌发和幼苗生长的促进作用从小到大为:无包衣组<MgO包衣组<MgH_(2)包衣组。采用SPSS进行综合分析,结果显示,MgH2-L3包衣大豆组综合得分最高,为最佳包衣配方。MgH2包衣组大豆的最优表现可能归因于镁与氢的协同生物学效应。Hydrogen has potential biological effects of promoting seed germination and plant growth.Nevertheless,since hydrogen is highly volatile,it is extremely challengng to coat seeds with hydrogen.Solid-state magnesium-based hydrogen storage material magnesium hydride(MgH2)could offer reliable hydrogen for seed because of its high hydrogen storage density,rich hydrogen supply by hydrolysis,long-term sustained release,and easy use.This study used a seed coating technology to coat soybeans by MgH2 and set up the MgO-coated soybean group as a positive control and the un-coated soybean group as a negative control.The effects of different treatments on soybean germination potential,germination rate,germination index and the influence of phenotypic traits,such as aboveground/underground fresh weight,stem length/thickness,total root length,number of lateral roots and leaf area of seedlings,were comprehensively investigated.Results showed that the promotion effects of different coating treatments on soybean germination and seedling growth were in the order:non-coating group<MgO coating group<MgH2 coating group.Comprehensive analysis was conducted using SPSS,and results suggested that the MgH2-L3 coated soybean group exhibited the highest comprehensive score and was thus the best coating recipe.Such optimal germination and growth performance of soybeans by MgH2-coatings may be attributed to the synergistic biological effects of both magnesium and hydrogen released by hydrolysis of MgH2.

关 键 词：氢化镁 种子包衣 氢肥 大豆萌发 

分 类 号：S565.1[农业科学—作物学]