CAJ | 학술논문

为深入探讨地表臭氧(O3)对冬小麦品质的影响,采用开顶式气室(OTC),设置3个处理组:CK(对照组)、CF100(O3浓度为100 nL·L-1)、CF150(O3浓度为150 nL·L-1),通过大田试验和实验室分析,开展了O3浓度增加对冬小麦蛋白质及其组分、氨基酸及其组成、淀粉含量等营养品质和加工品质的影响研究.结果表明:①籽粒氨基酸总量依次为CF100＞CF150＞CK,而人体所需的必需氨基酸总量为CF150＞CF100＞CK,处理间均差异显著(P＜0.05).②粗蛋白含量随O3浓度的升高而增加,但各组分间变化趋势不同:清蛋白、球蛋白的含量为CF150＞CF100＞CK,醇溶蛋白、谷蛋白的含量则为CF100＞CF150＞CK.③淀粉含量随着O3浓度的升高而降低,两者呈显著负相关(P＜0.05),与CK相比,CF100、CF150冬小麦淀粉含量分别下降了4.06%和16.61%.可见,O3胁迫能促进籽粒营养品质和加工品质的合成.
위심입탐토지표취양(O3)대동소맥품질적영향,채용개정식기실(OTC),설치3개처리조:CK(대조조)、CF100(O3농도위100 nL·L-1)、CF150(O3농도위150 nL·L-1),통과대전시험화실험실분석,개전료O3농도증가대동소맥단백질급기조분、안기산급기조성、정분함량등영양품질화가공품질적영향연구.결과표명:①자립안기산총량의차위CF100＞CF150＞CK,이인체소수적필수안기산총량위CF150＞CF100＞CK,처리간균차이현저(P＜0.05).②조단백함량수O3농도적승고이증가,단각조분간변화추세불동:청단백、구단백적함량위CF150＞CF100＞CK,순용단백、곡단백적함량칙위CF100＞CF150＞CK.③정분함량수착O3농도적승고이강저,량자정현저부상관(P＜0.05),여CK상비,CF100、CF150동소맥정분함량분별하강료4.06%화16.61%.가견,O3협박능촉진자립영양품질화가공품질적합성.
To in-depth understand the injury of increased ozone concentration at surface to grain quality of winter wheat,the Open-Top Chamber(OTC)was used to make field experiment in Nanjing area,which were designed to CF100 and CF150,controlled by 100 nL·L-1 and 150nL·L-1 in daytime during whole fumigating periods,and control(CK)by unfiltered air,respectively.The results of indoor experiments for the grain quality in winter wheat showed that there were significant differences among the treatments in contents of grain protein components and amino acid components:(1)The size order of total amino acids of grain was CF100＞ CF150＞ CK,but the essential amino acids was CF150＞ CF100＞ CK.It was significant difference between the three treatments(P＜0.05).(2)The crude protein contents in winter wheat was increasing with the increase of ozone concentrations,but there were different variation trends for their compositions,among which the size order of albumin and globulin contents were CF150＞ CF100＞ CK,prolamin and glutenin content were CF100＞ CF150＞ CK.(3)Starch contents was decreased with the increasing of the ozone concentration,with significant negative correlation.The starch contents of winter wheat in CF100 and CF150 declined by 4.06% and 16.61%,compared with CK,respectively.On the whole,ozone stress on winter wheat was conducive to the nutritional quality of grain,improved processing quality.