二氢卟吩铁对不同生育期小麦抗渍害能力的影响  

Effects of iron chlorine e6 on waterlogging resistance of wheat at different growth stages

作　　者：车阳 蒋伟勤 李可 文廷刚[1] 杨文飞[1] 杜小凤[1] 顾大路[1] 徐永刚 杨威[2] CHE Yang;JIANG Wei-qin;LI Ke;WEN Ting-gang;YANG Wen-fei;DU Xiao-feng;GU Da-lu;XU Yong-gang;YANG Wei(Huaiyin Institute of Agricultural Sciences in Xuhuai Region of Jiangsu,Huaian 223001,China;Huaiyin Normal University,Huaian 223300,China)

机构地区：[1]江苏徐淮地区淮阴农业科学研究所,江苏淮安223001 [2]淮阴师范学院,江苏淮安223300

出　　处：《江苏农业学报》2023年第8期1627-1634,共8页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省农业科技自主创新基金项目[CX(21)1011];国家现代农业产业技术体系专项(CARS-03);淮安市农业科学研究院科研发展基金项目(HNY202114)。

摘　　要：为探究二氢卟吩铁(ICE6)对不同生育期小麦抗渍害能力的影响,本研究采用盆栽方式在孕穗期和开花期通过人工淹水处理来模拟小麦渍害过程。试验处理设置为小麦渍水前喷施不同质量浓度0.02%ICE6:0 mg/L(CW)、100 mg/L(E1W)、200 mg/L(E2W)、300 mg/L(E3W)、400 mg/L(E4W),同时增设常规种植为对照(CK)。结果表明,与CK相比,CW处理显著降低了小麦籽粒产量;不同质量浓度ICE6于孕穗期和开花期进行渍前喷施处理可以提高小麦产量,其中孕穗期渍前ICE6喷施处理E2W~E4W效果较好,相比CW处理产量显著提高;开花期渍前ICE6喷施处理E1W~E3W效果较好,相比CW处理产量显著提高,但均未达到CK水平。外源ICE6喷施处理产量提高的主要原因是穗粒数和千粒质量的提高,并且处理后7~28 d剑叶叶绿素含量大于CW处理,使植株花后地上部光合同化产物积累量以及开花期至成熟期群体生长率随着植株光合生产能力提高而提高,从而使植株在成熟期具有较高的干物质积累量,并且在成熟期植株干物质分配中,籽粒占据较高的积累量及比例,最终使小麦产量得到提高。本研究结果表明在小麦孕穗期和开花期渍前喷施外源ICE6可以提高小麦抗渍害能力,减轻渍害对小麦产量的影响。In order to explore the effects of iron chlorine e6(ICE6)on waterlogging resistance of wheat at different growth stages,this experiment was carried out by pot experiment.We simulated the waterlogging process of wheat by artificial flooding at booting stage and flowering stage.The experimental treatments were set to spray different concentrations of 0.02%ICE6:0 mg/L(CW),100 mg/L(E1W),200 mg/L(E2W),300 mg/L(E3W),400 mg/L(E4W)before wheat waterlogging,and the conventional planting was added as the control(CK).The results showed that compared with CK,CW treatment significantly reduced wheat grain yield.Spraying different concentrations of ICE6 before waterlogging at booting stage and flowering stage could increase wheat yield.Among them,the effect of E2W treatment-E4W treatment at booting stage was better,and the yield was significantly higher than that of CW treatment.The effect of E1W treatment-E3W treatment at flowering stage was better,and the yield was significantly higher than that of CW treatment,but it did not reach the level of CK.The main reason for the increase in yield of exogenous ICE6 spraying treatment was the increase in the number of grains per spike and 1000-grain weight.Moreover,the chlorophyll content of the flag leaves at 7-28 days after treatment was higher than that of CW treatment.The accumulation of photosynthetic assimilation products after flowering and the population growth rate from flowering to maturity stage increased with the increase of plant photosynthetic material production capacity.Therefore,the plant had a higher dry matter accumulation at maturity stage,and in the dry matter distribution of the plant at maturity stage,the grain occupied a higher accumulation and proportion,and finally the wheat yield was improved.The results of this study showed that spraying exogenous ICE6 before waterlogging at booting stage and flowering stage of wheat could improve the resistance of wheat to waterlogging and reduce the effect of waterlogging on wheat yield.

关 键 词：小麦 产量 二氢卟吩铁 渍害 光合物质生产 

分 类 号：S512.1[农业科学—作物学]