FACE条件下臭氧浓度升高对不同筋型小麦籽粒品质的影响
Effects of elevated ozone on the grain quality of wheat with different gluten types based on FACE facility
曹蓉 1徐彦森 1冯兆忠 1尚博 1马艳泽1
作者信息
- 1. 南京信息工程大学生态与应用气象学院,中国气象局生态系统碳源汇重点开放实验室,江苏省农业与生态气象重点实验室,南京 210044
- 折叠
摘要
为深入研究不同筋型小麦籽粒品质对地表臭氧(O3)浓度升高的响应,本研究依托于开放式O3浓度增加系统(O3-FACE),于2021年和2022年分别以13个(4个强筋品种、5个中筋品种、4个弱筋品种)和12个(4个强筋品种、6个中筋品种、2个弱筋品种)小麦(Triticum aestivum L.)品种为供试材料,设置环境O3浓度(AA)和1.5倍环境O3浓度(E-O3)处理,研究不同筋型小麦对O3浓度升高的响应差异.结果表明:O3浓度升高下2021年Ca元素含量显著升高24.8%,2022年直链淀粉含量显著降低8.1%.不同筋型小麦籽粒品质对O3响应存在显著差异,强筋和中筋小麦2022年直链淀粉含量显著降低8.6%和7.6%,2021年Ca元素含量显著升高24.7%和27.2%,弱筋小麦2021年淀粉含量显著降低6.7%,两年蛋白质含量增幅较强筋和中筋小麦更大.根据不同筋型小麦籽粒品质标准,高浓度O3将会有利于中筋和强筋小麦品质形成,而不利于弱筋小麦籽粒品质形成.高浓度O3对所有供试小麦均有重要影响,其中宁麦13、扬麦33和扬麦22对O3敏感.
Abstract
To investigate the response of wheat grain quality with different gluten types to elevated tropospheric ozone(O3),13 wheat(Triticum aestivum L.)cultivars(4 strong-gluten varieties,5 medium-gluten varieties,4 weak-gluten varieties)in 2021 and 12 cultivars(4 strong-gluten varieties,6 medium-gluten varieties,2 weak-gluten varieties)in 2022 were grown in the Free-Air O3 Concentration Enrichment system(O3-FACE).Two O3 treatments:ambient air(AA)and elevated O3(1.5×ambient O3 concentration,E-O3)were used to study differences in the responses of wheat gluten types to elevated O3.The results showed that E-O3 significantly increased the Ca element content by 24.8%in 2021,and the amylose content significantly decreased by 8.1%in 2022.There were significant differences in the grain quality of different wheat gluten types in response to E-O3.Strong-and medium-gluten wheat showed a significant decrease of 8.6%and 7.6%in amylose content in 2022,while Ca element content increased significantly by 24.7%and 27.2%in 2021,respectively.Weak-gluten wheat showed a significant decrease of 6.7%in starch content in 2021,with a larger increase in protein content over the past two years compared to medium-and strong-gluten wheat.According to the quality standards of wheat grains with different gluten types,E-O3 will be beneficial for the formation of grain quality in medium-and strong-gluten wheat,but is not conducive to the formation of grain quality in weak-gluten wheat.In summary,E-O3 has a significant impact on all tested wheat cultivars,in which Ningmai 13,Yangmai 33,and Yangmai 22 are sensitive to O3.
关键词
地表臭氧/小麦/筋型/蛋白质/淀粉/矿质元素Key words
ground-level ozone/wheat/gluten type/protein/starch/mineral element引用本文复制引用
基金项目
江苏省碳达峰碳中和专项(BE2022312)
国家自然科学基金重点项目(42130714)
出版年
2024
国家科技期刊平台
NSTL
万方数据