纳米三氧化二铁对黄瓜发芽和叶片光合特性的影响

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关键词：纳米三氧化二铁（ Fe2O3NPs ；黄瓜；生理特性；发芽率；光合特性中图分类号：S642.2；Q945 文献标识码：A文章编号：0439-8114（2025）07-0101-04DOI：10.14088/j.cnki.issn0439-8114.2025.07.018

开放科学（资源服务）标识码（OSID）：口

The effects of nano- ∇⋅Fe2O3 on the germination of cucumber and the photosynthetic characteristicsofcucumberleaves

LI Jun-peng，SUN Xin-hui，HE Ya-zhou，CHEN Xiao-feng Yantai Institute of China Agricultural University，Yantai 26467O，Shandong，China

Abstract：Experimentswereconductedfromfouraspects：Thegrminatioateofcucumbers，rotlength，antioxidantsystemperoxidase（POD），superoxidedismutase（SOD），catalase（CAT）]，and photosyntheticcharacteristicsofleaves（net photosyntheticrate， stomatal conductance，intercellular CO 2 concentration）.Based on the physiological characteristic detection of cucumber seedlings，the effects of different concentrations of nano-iron（II） oxide （ Fe2O3 NPs）（0，5，10，15，20 mg/L）on the growth of cucumber plants were studied. The results showed that F e203. NPs had a dual concentration effect on the growth and development of cucumbers.Low concentrations （ 5，10mg/L ）ofF a2O3 NPs had a certain promoting effect on the germination rate of seeds and the growth of main roots， while high concentrations（ 15，20mg/L ）of F e2O3 NPs exhibited inhibitory effects.Under low concentrations，the photosynthetic characteristicsandtheactiyofantioxidantenzymes wereenhaned，whileunderhighcocentrations，thephotosyntheticcharacteristics and the activity of antioxidant enzymes were inhibited，accompanied by oxidative damage.

Keywords：nanoron（I）oxide（FeONs）；cucumber；physiologicalcharacteristics；germinationate；photosytheticharacter istics

纳米材料的发展始于20世纪中后期，随着材料力学和量子力学的突破性发展，纳米尺度下材料的独特性质逐渐被认识。（剩余7363字）