不同植物生长调节剂对冬小麦苗期根系生长的影响  

Effects of Different Plant Growth Regulators on the Root Growth of Winter Wheat Seedlings Stage

作　　者：韩锐锋 马文豪 董向阳 方甜甜 张书红 Han Ruifeng;Ma Wenhao;Dong Xiangyang;Fang Tiantian;Zhang Shuhong(Henan Xinlianxin Chemical Industry Group Co.Ltd.,Xinxiang,453731)

机构地区：[1]河南心连心化学工业集团股份有限公司,新乡453731

出　　处：《腐植酸》2024年第3期42-47,共6页Humic Acid

摘　　要：探究不同植物生长调节剂对冬小麦苗期生物量、根系生长发育的影响,以期为采用化学措施调控冬小麦根系生长提供理论依据。试验以水培方式,水施8种植物生长调节剂,以蒸馏水为对照(CK),通过测定冬小麦株高、根干重及根系形态指标对比不同调节剂应用效果。结果表明:与CK相比,除施用氨基酸等衍生物处理(T7)外,其余处理冬小麦苗期的根系形态均有不同程度改善,其中施用吲哚甲酯胺(T4)及腐植酸钾(T8、T9)的冬小麦根长、根表面积及根系体积均优于其他处理;施用低浓度腐植酸钾(T8)时,较其他调节剂能够增加冬小麦苗期根长、根系体积及根表面积,增加腐植酸浓度后(T9)会继续促进冬小麦苗期地上部生物量的积累;利用隶属函数对各处理生物量、根系形态指标进行综合评价,筛选出T4和T9处理具有较优效果。In order to explore the effects of different plant growth regulators on the biomass and root growth and development of winter wheat seedlings stage and provide scientific theoretical basis for the application chemical measures to regulate winter wheat root growth.The hydroponic cultivation experiments with 8 plant growth regulators applied were adopte,and the application effects of different regulators were compared by the plant height,root dry weight,and root morphology indicators of winter wheat.Distilled water was used as the control(CK).The results showed that,except for the application of amino acid derivatives(T7),the root morphology of the other plant growth regulators during the of winter wheat seedlings stage was improved to varying degrees compared with CK.The application of indolyl methyl amine(T4)and potassium humate(T8,T9)resulted in better root length,root surface area,and root volume than other treatments among them.Compared with the other regulators,the application of low concentration potassium humate(T8)could increase the root length,root volume,and root surface area of winter wheat seedlings stage and the increase in the concentration of humic acid(T9)could continue to promote the accumulation of aboveground biomass in winter wheat seedlings stage.Membership functions were used to evaluate comprehensively the biomass and root morphology indicators of each treatment,it was found that the application of T4 and T9 treatments had better effects.

关 键 词：冬小麦 植物生长调节剂 生物量 根系形态 

分 类 号：S512[农业科学—作物学] S482.8