盐胁迫对冀谷37和38幼苗生理指标的影响  

Effects of Salt Stress on Physiological Indexes of Millet Seedlings of Jigu 37 and Jigu 38

作　　者：周宏 赵玲 王根平[1] 张皓珊 张婷[1] 姚占军 ZHOU Hong;ZHAO Ling;WANG Genping;ZHANG Haoshan;ZHANG Ting;YAO Zhanjun(Institute of Millet Crops,Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province,Shijiazhuang 050035,China;College of Agronomy/Key Laboratory for Crop Germplasm Resources of Hebei,Hebei Agricultural University,Baoding 071000,Hebei China)

机构地区：[1]河北省农林科学院谷子研究所/农业农村部特色杂粮遗传改良与利用重点实验室(部省共建)/河北省杂粮研究实验室,石家庄050035 [2]河北农业大学农学院/河北省作物种质资源重点实验室,河北保定071000

出　　处：《河南科学》2025年第4期518-523,共6页Henan Science

基　　金：河北省农林科学院基本科研业务费(HBNKY-BGZ-02,2021030203);河北现代种业科技创新专项(21326302D);河北省农林科学院博士基金项目(C23R0407);国家谷子高粱产业技术体系(CARS-06-14.5)。

摘　　要：为了选育耐盐谷子品种,选取0、50、75、100 mmol/L NaCl溶液对冀谷37和冀谷38谷子幼苗进行盐胁迫,以抗逆高产品种沧谷3幼苗作为对照,检测谷子幼苗中丙二醛、游离脯氨酸、叶绿素含量以及过氧化物酶活性、超氧化物歧化酶活性等生理指标来研究其耐盐性。结果表明:随着NaCl浓度的增加,冀谷37和冀谷38幼苗的丙二醛和游离脯氨酸含量、超氧化物歧化酶活性和过氧化物酶活性不断上升,叶绿素含量逐渐下降。在不同浓度NaCl胁迫下,冀谷37和冀谷38幼苗的生理指标与沧谷3幼苗在不同盐胁迫情况下均有显著性差异。综合各项生理指标分析,冀谷37幼苗的耐盐性高于冀谷38幼苗,但二者的耐盐性均大于沧谷3幼苗。In order to breed salt-tolerant foxtail millet cultivars,Jigu 37 and Jigu 38 seedlings were subjected to salt stress with concentrations of 0,50,75 and 100 mmol/L NaCl solutions,and the seedlings of Canggu 3,a high-yield and stress-resistant variety,were used as control.The content of malondialdehyde(MDA),free proline(Pro),chlorophyll(Chl)and the activity of peroxidase(POD)and superoxide dismutase(SOD)in two foxtail millet cultivars were determined for studying their salt tolerance.The results showed that MDA content,Pro content,SOD activity and POD activity in Jigu 37 and Jigu 38 increased with the increase of NaCl concentration,while the Chl content declined gradually.The salinity tolerance of Jigu 37 was higher than that of Jigu 38,and the salt resistances of Jigu 37 and Jigu 38 were stronger than that of Canggu 3.

关 键 词：盐胁迫 耐盐性 冀谷37 冀谷38 谷子幼苗 品种选育 

分 类 号：S515[农业科学—作物学]