河北滨海盐碱地14个苜蓿品种光合性能与产量性状分析  

Analysis of Photosynthetic Characteristics and Yield Traits of Fourteen Alfalfa Varieties in Coastal Saline-alkali Soil in Hebei Province

作　　者：石嘉琦 刘忠宽[1] 王东奎 张立锋 于合兴 智健飞[1] 李洁鑫 李敏[1] 刘振宇[1] 谢楠[1] 刘惠芝 SHI Jia-qi;LIU Zhong-kuan;WANG Dong-kui;ZHANG Li-feng;YU He-xing;ZHI Jian-fei;LI Jie-xin;LI Min;LIU Zhen-yu;XIE Nan;LIU Hui-zhi(Institute of Agricultural Recourses and Environment,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang,Hebei Province 050051,China;Nanpi County Agricultural and Rural Bureau,Cangzhou,Hebei Province 061500,China;Huanghua Agricultural and Rural Development Bureau,Cangzhou,Hebei Province 061199,China;Shanghai Pudong New Area Hangtou Town Economic Development Service Center,Shanghai 201316,China;Leting County Agricultural and Rural Bureau,Tangshan,Hebei Province 063600,China)

机构地区：[1]河北省农林科学院农业资源环境研究所,河北石家庄050051 [2]南皮县农业农村局,河北沧州061500 [3]黄骅市农业农村发展局,河北沧州061199 [4]上海市浦东新区航头镇经济发展服务中心,上海201316 [5]乐亭县农业农村局,河北唐山063600

出　　处：《草地学报》2023年第7期2107-2115,共9页Acta Agrestia Sinica

基　　金：国家重点研发计划(2021YFD19009);河北省农林科学院科技创新专项课题(2022KJCXZX-ZHS-7);国家牧草产业技术体系(CARS-34);河北省农林科学院农业资源环境研究所自立项目(ZHS-ZLXM-2022-07)资助。

摘　　要：为探究不同苜蓿(Medicago sativa)品种在河北滨海盐碱区的光合性能及产量性状的变化差异,本研究以14个苜蓿品种为材料,运用冗余分析和灰色关联度法对不同苜蓿品种叶绿素含量、荧光参数、光合参数、株高及生物产量进行评价。结果表明:不同苜蓿品种间产量性状和光合生理差异较大,其中‘WL440HQ’叶片的实际光合效率Y(II)、光化学淬灭系数(qP)和表观光合电子传递速率(ETR)最高,且非光化学淬灭系数(NPQ)、光系统调节性能量耗散的量子产量Y(NPQ)和非调节性能量耗散的量子产量Y(NO)均最低,光合作用强,有利于植株干物质积累;冗余分析显示苜蓿干草产量易受株高、叶绿素a(Chla)、最大光合效率(Fv/Fm)、潜在最大相对电子传递速率(ETR_(max))、Y(II),l k,qP,NPQ,Y(NPQ)及ETR等因素的影响,其中Y(NPQ)和NPQ为负向影响,其余因素为正向影响。‘WL440HQ’‘甘农9号’‘WL358HQ’‘中苜1号’和‘WL525HQ’综合排名靠前,光合性能和产量性状表现均较好,适宜在河北滨海盐碱区栽种。To reveal the difference of photosynthetic characteristics and yield traits of different Medicago sativa varieties in coastal saline-alkali soil in Hebei Province,14 varieties of alfalfa were used as the tested material,Redundancy analysis and grey correlation method were used as comprehensive evaluate methods to analyze chlorophyll content,fluorescence parameters,photosynthetic parameters,plant height and biomass of different alfalfa varieties.The results showed that there were significant differences in yield characters and photosynthetic physiological characters among different alfalfa varieties.The actual photosynthetic efficiency Y(II),photochemical quenching(qP)and apparent electron transfer rate(ETR)of‘WL440HQ’leaves were the highest,and the non photochemical quenching(NPQ),Quantum yield of regulatory energy dissipation in photosystem Y(NPQ)and Quantum yield of non-regulatory energy dissipation in photosystem Y(NO)were the lowest,so its photosynthesis was strong and the dry matter of the plant was accumulated more.Redundancy analysis showed that alfalfa hay yield was affected by plant height,chlorophyll a(Chla),maximum photosynthetic efficiency(Fv/Fm),potential_(max)imum relative electron transfer rate(ETR_(max)),Y(II),l k,photochemical quenching(qP),NPQ,Y(NPQ)and ETR.Y(NPQ)and NPQ have negative effects on yield,and other factors have positive effects.Under the conditions of this study,‘WL440HQ’,‘Gannong No.9’,‘WL358HQ’,‘Zhongmu No.1’and‘WL525HQ’were ranked at the top,and their photosynthetic performance and yield traits were better.Therefore,these five varieties were suitable for plant in coastal saline alkali areas of Hebei Province.

关 键 词：滨海盐碱地 苜蓿品种 光合性能 产量性状 叶绿素荧光参数 

分 类 号：S322[农业科学—作物遗传育种] S541[农业科学—农艺学]