华北农学报Issue(z1)：152-156,5.DOI:10.7668/hbnxb.2015.S1.027
不同植物生长调节剂对冬小麦茎秆特性和产量的影响
Effect of Different Plant Growth Regulators on the Stem Characteristics and Yield in Winter Wheat
摘要
Abstract
Field experiments were conducted to study effect of spraying different plant growth regulators on the stem characteristics and yield of winter wheat.We set spraying 175 mg/kg Paclobutrazol(SP1),300 mg/kg Cycocel (SP2),350 mg/kg Maijujin(SP3),333 mg/kg Jinfeng(SP4),300 mg/kg DPC(SP5),333 mg/kg Bihu(SP6) and water control 7 treatments,the wheat plant height,internode length,stem diameter,dry weight of stem,lodging resist-ance,yield and yield components were analyzed.The results showed that,different plant growth regulators reduced plant height,enhanced basal stalk resistance and lodging resistance,lodging resistance:SP3 >SP6 >SP4 >SP1 >SP5 >SP2 >CK.The effect of different treatments on wheat basal internodes length:1st internode >2nd internode >3rd internode.The grain yield of winter wheat:SP3 >SP5 >SP6 >SP1 >SP2 >CK >SP4,among them SP3 and SP5 treatments remarkably increased grain yield by 3.2% and 2.3%,respectively.Different treatments had larger effect on effective spike number and grain number per spike,and smaller effect on 1000-grains weight.2013 -2014 year winter wheat under the condition of no lodging place,the results of spraying with Paclobutrazol and DPC were better than other growth regulators.关键词
植物生长调节剂/冬小麦/茎秆特性/产量Key words
Plant growth regulators/Winter wheat/Stem characteristics/Yield分类
农业科技引用本文复制引用
姚海坡,董志强,吕丽华,申海平,姚艳荣,张丽华,贾秀领..不同植物生长调节剂对冬小麦茎秆特性和产量的影响[J].华北农学报,2015,(z1):152-156,5.基金项目
农业部行业科研专项（201203100）；农业部公益性行业科研专项（201203033－2）；河北省现代化产业技术体系小麦创新团队项目 （）
