西北农业学报2025，Vol.34Issue(1) ：15-23.DOI:10.7606/j.issn.1004-1389.2025.01.003

冬小麦新品系'白鹿181'对极端冷冻胁迫的生理响应

Physiological Response of New Winter Wheat Line'Bailu 181'to Extreme Freezing Stress

郭家宏 陈怡平 李英梅 张峰 张安静 李晓丽 杨子光
西北农业学报2025，Vol.34Issue(1) ：15-23.DOI:10.7606/j.issn.1004-1389.2025.01.003
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冬小麦新品系'白鹿181'对极端冷冻胁迫的生理响应

Physiological Response of New Winter Wheat Line'Bailu 181'to Extreme Freezing Stress

郭家宏 1陈怡平 2李英梅 3张峰 3张安静 4李晓丽 5杨子光6
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作者信息

  • 1. 中国科学院地球环境研究所,黄土科学全国重点实验室,西安 710061;中国科学院大学,北京 100049
  • 2. 中国科学院地球环境研究所,黄土科学全国重点实验室,西安 710061
  • 3. 陕西省生物农业研究所,西安 710061
  • 4. 咸阳农业科学院,陕西咸阳 712000
  • 5. 邓州市种子技术服务站,河南邓州 474150
  • 6. 洛阳市农林科学院,河南洛阳 471023
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摘要

为检验冬小麦新品系'白鹿181'对极端冷冻胁迫的适应能力,以'洛旱7号'与'小偃22'为对照,研究'白鹿181'对极端冷冻的生理响应.研究发现:(1)在极端冷冻胁迫下,'小偃22'叶片和根系中的自由基和MDA含量＞'洛旱7号＞'白鹿181';'白鹿181'叶片和根系中SOD、CAT、POD、APX酶活性＞'洛旱7号'＞'小偃22';(2)'白鹿181'叶片中的可溶性蛋白含量高于'小偃22'13.9％(P＞0.05),高于'洛旱7号'5.5％(P＞0.05);'白鹿181'根系中NO含量高于'小偃22'18.7％(P＜0.05),高于'洛旱7号'3％(P＞0.05);(3)'白鹿181'根系中NOS活性高于'洛旱7号'8.5％(P＞0.05),高于'小偃22'14.3％(P＞0.05).研究结果表明,与'洛旱7号'和'小偃22'相比,'白鹿181'对极端冷冻胁迫具有较强的抗性,且'白鹿181'较适宜于关中平原等黄河中游地区种植.

Abstract

The adaptability of new winter wheat line'Bailu181'to adversity was tested by investiga-ting its physiological response and yield performance under extreme freezing stress.Control materials,'Luohan7'and'Xiaoyan22',were sown under the same conditions in Dali County in Guanzhong Plain.The results showed that the levels of free radical and MDA contents in both leaves and roots ex-hibited the following order:'Xiaoyan22'＞'Luohan7'＞'Bailu181';SOD,CAT,POD and APX en-zyme activities in both leaves and roots followd the order:'Bailu18 1'＞'Luohan7'＞'Xiaoyan22';the soluble protein content in the leaves of'Bailu181'was 13.9％higher than that of'Xiaoya22'(P＞0.05)and 5.5％higher than that of'Luohan7'(P＞0.05);the NO content in the roots of'Bailu181'was 18.7％higher than that of'Xiaoyan22'(P＜0.05),and 3％higher than that of'Luo-han7'(P＞0.05).Nitric oxide synthase(NOS)activity in the roots of'Bailu181'was 8.5％higher than that of'Luohan7'(P＞0.05),and 14.3％higher than that of'Xiaoyan22'(P＞0.05).These findings suggest that"Bailu181'is more resistant to extreme freezing stress compared to the materials and is suitable for cultivation in the Guanzhong Plain and other areas in the middle reaches of the Yellow River.

关键词

冬小麦/'白鹿181'新品系/极端环境/冷冻胁迫/生理响应/'小偃22'/'洛旱7号'

Key words

Winter wheat/New line/'Bailu181'/Extreme environments/Extremely freezing stress/Physiological response/'Xiaoya22'/'Luohan7'

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出版年

2025
西北农业学报
西北农林科技大学,甘肃,宁夏,青海,新疆农（林）业科学院及青海,新疆畜牧（兽医）科学院及新疆农垦科学院

西北农业学报

北大核心
影响因子：0.629
ISSN：1004-1389
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