新型植物源叶面阻控剂JS-01降低水稻镐积累的作用

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中图分类号：X53;S511 文献标志码：A 文章编号：1672-2043（2025）09-2245-08 doi：10.11654/jaes.2024-0688

Abstract：Toexploretheregulatoryefectsofanovelplant-derivedfolaretardant（JS-O1）ontheaccumulationofcadmumCdiice grains，thisexperimentwaonductediperealareasoficewitheesiveCdlevels，uchasZhejiang，HunanndJangiusing smallplotexpements，gefeldexpeents，nflddmostratiostoeasureteCdtentinriousgasoficeesuls indicate that in small plot experiments（ 30m2 per treatment），compared with the control（sprayed with water），the Cd content in the roots， stems，and leaves of rice was reduced by 43.96% to 77.68 % 38.20% to 75.64% ，and 33.74% to 56.68 % ，respectively，and the Cd content inbrown ricewasreduced by 24.72% to 89.95% .Inlarge field experiments conducted across six different regions with various rice varieties （1.33hm²pertreatment），afterspraying JS-O1，thereductionratesofCdinbrownriceforearlymidle，andlatericewere 42.86% and （204号 72.41% ，63.89% and 69.44% ，and 32.37% and 50.30% ，respectively.In large-scale field demonstrations（6.67 hm² per treatment），where JS-01wascombinedwithonventionalpesticidesandtreateduniformlybydrone，theCdcontentinbrownricealsomettheational standards（GB2762—2O22）andwassuperiortothetreatmentwithsilicon-basedfliarretardantsalone.ThestudyshowsthattheCd contentinbrownricemetthentionalstadardrequirements，ndtetreatmentwithJS-OlsignificantlyreducedthetranserofCdfrom roottoshootndsultediepaetalatioofsoCdingetieosetreaetitSidotted and agronomic traits of rice and saved a total of 31.2% in labor and pesticide costs compared to the use of silicon-based foliar retardants. Therefore，spraingJS-OlcanefectivelyreduetheaccumulationofCdinbrownrice，withbeteresultsthansilicon-basedfoliar retardants，and is convenient to useandcost-effctive，offering a promising prospect for promotion and application.

Keywords：foliar inhibitor; thymol; Cd accumulation; rice; grains

2014年《全国土壤污染状况调查公报》显示，我国土壤污染点位超标率 19.4% ，其中镉（Cd）点位超标率高达 7.0%[1] 。（剩余17621字）