CAJ | 학술논문

随着人们对食品安全关注度的增加，具有无公害、不产生抗药性等特点的铜制剂正被大量应用于有机农业生产中。铜制剂的大量施用是否真对食品品质无害值得关注。本文以空心菜的种子和幼苗为材料，分析了CuSO4处理下种子萌发和幼苗生长、品质等的变化。结果显示，≤1 mM CuSO4的处理对种子萌发率影响不明显，但会降低种子萌发质量；≤9 mM CuSO4的处理对空心菜幼苗的生长、光合、产量和营养含量影响不大；CuSO4处理会增加空心菜体内的铜积累，并将铜优先积累于根部；各处理组空心菜茎叶铜含量不超标，但≥3 mM CuSO4处理将会导致根部铜含量超标；CuSO4处理降低了空心菜体内的硝酸还原酶活性，促使硝酸盐在空心菜体内累积，并达到重度污染水平，降低了蔬菜品质，提高了人类的患癌风险。
수착인문대식품안전관주도적증가，구유무공해、불산생항약성등특점적동제제정피대량응용우유궤농업생산중。동제제적대량시용시부진대식품품질무해치득관주。본문이공심채적충자화유묘위재료，분석료CuSO4처리하충자맹발화유묘생장、품질등적변화。결과현시，≤1 mM CuSO4적처리대충자맹발솔영향불명현，단회강저충자맹발질량；≤9 mM CuSO4적처리대공심채유묘적생장、광합、산량화영양함량영향불대；CuSO4처리회증가공심채체내적동적루，병장동우선적루우근부；각처리조공심채경협동함량불초표，단≥3 mM CuSO4처리장회도치근부동함량초표；CuSO4처리강저료공심채체내적초산환원매활성，촉사초산염재공심채체내루적，병체도중도오염수평，강저료소채품질，제고료인류적환암풍험。
With the increase of focus on food safety,copper agents which have the characteristics of pollution-free,no re?sistance etc. are widely used in organic agricultural production. Whether the extensive application of copper agents will bring influence on the yield and quality of foods or not is noteworthy. To inspect this influence,the changes of seed ger?mination,seedling growth and vegetable quality of Ipomoea aquatic under CuSO4 processing will be assayed in this pa?per.Results showed that CuSO4 treatment not over 1 mM had no obvious effect on seed germination rate,but would re?duce seed germination quality. CuSO4 treatment not over 9 mM had no obvious effect on seedling growth,photosynthesis, yield and nutrient content. CuSO4 treatment would increase copper accumulation in I. aquatic seedlings,and copper would accumulate preferentially in roots. Copper content in leaves and stems in the treated I. aquatic seedlings would not exceed the national standard,but it would exceed the standard in roots when CuSO4 was not less than 3 mM. CuSO4 treatment would reduce the nitrate reductase activities which led to the nitrate accumulation to the severe pollution level in I. aquatic seedlings. This would reduce the vegetable quality and enhance the human cancer risk.