幼苗期不同花生品种的耐渍性评价  

Evaluation on Waterlogging Tolerance of Different Peanut Varieties at Seeding Stage

作　　者：黄丽 刘兴淋[3] 胡秋玲 何珊 邓淑焜 王海苗 HUANG Li;LIU Xinglin;HU Qiuling;HE Shan;DUN Shukun;WANG Haimiao(College of Life Sciences,Guangxi Normal University,Guilin Guangxi 541006,China;Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University),Ministry of Education,Guilin Guangxi 541006,China;College of Agriculture,Guangxi University,Nanning Guangxi 530004,China)

机构地区：[1]广西师范大学生命科学学院,广西桂林541006 [2]珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学),广西桂林541006 [3]广西大学农学院,广西南宁530004

出　　处：《广西师范大学学报（自然科学版）》2024年第5期184-192,共9页Journal of Guangxi Normal University:Natural Science Edition

基　　金：广西自然科学基金青年科学基金(2018GXNSFBA050036);广西科技基地和人才专项(桂科AD19245128);广西师范大学校级重点科研项目(2018ZD005);广西师范大学可持续发展创新项目(2020CX004)。

摘　　要：为研究我国常栽花生品种耐渍性差异,在幼苗期通过盆栽试验,以正常水分为对照,设置48 h渍水胁迫处理,测定不同品种的SPAD值、根长、株高、根生物量等相关指标,明确不同花生品种间苗期的耐渍差异,从而筛选出耐渍性差异显著的花生品种。结果表明:渍水胁迫对花生幼苗期的形态建成有不同程度的抑制效应。与对照组相比,渍水条件下的花生根系鲜质量、地上部鲜质量、根系生物量、地上部生物量、植株生物量分别下降52.24%、45.43%、54.22%、37.84%、41.81%;地上部各项形态指标的平均变异系数为32.48,而根部各形态指标的平均变异系数达38.62;以根系鲜质量、植株鲜质量、根长、株高、SPAD值等指标的相对值作为花生耐渍性评价的指标进行聚类分析,将本研究的16个花生品种分为较强耐渍性、较弱耐渍性两类。研究结果为深入研究花生品种的耐渍机制及培育耐渍品种提供理论依据。In order to study the difference of tolerance to waterlogging of commonly planted peanut varieties in China,the germination rate,SPAD value,root length,plant height,root biomass and other related indexes of different varieties were measured in a pot experiment at the seeding stage with normal moisture as the control group,and the waterlogging stress treatment was set for 48 hours,the waterlogging resistance of different peanut varieties was comprehensively evaluated to screen out peanut varieties with significant difference in waterlogging tolerance.The results showed that the morphological establishment in peanut seedling stage was inhibited to different degrees by waterlogging.Compared with the control groups,the root fresh weight,aboveground fresh weight,root biomass,aboveground biomass,and plant biomass of peanut under waterlogged conditions were decreased by 52.24%,45.43%,54.22%,37.84%,and 41.81%,respectively.Under waterlogging stress,the average coefficient of variation value of the above-ground morphological indicators was 32.48,while the average coefficient of variation value of the root morphological indicators reached 38.62.The relative values of root fresh weight,plant fresh weight,root length,plant height and SPAD value were used as indicators to evaluate the waterlogging-tolerant in peanut.The cluster analysis was conducted to classify 16 peanut varieties in this study into two categories of strong and weak waterlogging resistance,which laid a good theoretical foundation for further research on the waterlogging tolerance mechanism and cultivation of waterlogging-resistant varieties in peanut.

关 键 词：花生 幼苗期 生长特性 渍水 聚类分析 

分 类 号：S565.2[农业科学—作物学]