不同化控产品对镇江地区小麦抗倒性及产量的影响  

Effects of Different Chemical Control Agents on Lodging Resistance and Yield of Wheat in Zhenjiang Area

作　　者：张新凤 张国 于居龙[1] 余向阳[2] 程金金[2] 吴雪芬 束兆林[1] ZHANG Xinfeng;ZHANG Guo;YU Julong;YU Xiangyang;CHENG Jinjin;WU Xuefen;SHU Zhaolin(Jiangsu Hilly Area Zhenjiang Institute of Agricultural Sciences,Jurong 212400,China;Jiangsu Academy of Agricultural Science,Nanjing 212300,China;Jiangsu Shanchuan Technology Co.,Ltd.,Huai’an 223001,China)

机构地区：[1]江苏丘陵地区镇江农业科学研究所,江苏句容212400 [2]江苏省农业科学院,江苏南京212300 [3]江苏山川科技有限公司,江苏淮安223001

出　　处：《大麦与谷类科学》2024年第4期35-39,共5页Barley and Cereal Sciences

基　　金：江苏现代农业产业技术体系建设项目[JATS(2023)257];江苏省碳达峰碳中和科技创新专项资金(BE2022424-3)。

摘　　要：为验证不同化控产品对小麦倒伏的预防效果,在小麦不同时期喷施“矮壮丰”“灵滟”“植播龙”“百睿”“穗伴侣”5种化控产品,调查处理后小麦茎秆的抗折力、鲜质量、干质量及产量。结果表明,不同化控产品通过降低小麦第1节间、第2节间或穗茎节间长度从而降低小麦高度,降低小麦倒伏的可能性。拔节期喷施“矮壮丰”、返青期和拔节期喷施“灵滟”、拔节前施用“植播龙”能明显降低小麦第1节间的长度,返青期和拔节期喷施“灵滟”还能降低第2节间的长度,破口期喷施“穗伴侣”可降低穗茎节间的长度。5种化控产品处理小麦产量均显著高于对照处理,增产幅度为7.73%~20.62%,以“穗伴侣”处理小麦籽粒产量最高(7593.75 kg/hm^(2)),比对照增加20.62%,增产原因主要为增加单位面积穗粒数和穗数。从抗倒伏角度看,返青-拔节期田间喷施“灵滟”(900 mL/hm^(2))加胺鲜酯(150 mL/hm^(2))可有效降低小麦株高,增加小麦抗倒伏能力;从抗倒伏和增产的角度看,在破口期喷施“穗伴侣”(1500 mL/hm^(2)),对水450 L喷雾,可增加小麦穗长和穗粒数,在提高小麦产量的同时,能有效防止小麦成熟期倒伏。In order to verify the preventive effect of different chemical control products on wheat lodging,the 5 chemical control agents of“Aizhuangfeng”,“Lingyan”,“Zhibolong”,“Bairui”and“Suibanlv”were sprayed on wheat at different stages,and the wheat stem bending resistance,fresh weight,dry weight and yield were investigated.The results showed that different chemical control agents can reduce the height of wheat by reduce the length of the first,second,or spike stem internodes,thereby reducing the possibility of wheat lodging.Spraying“Aizhuangfeng”during the jointing stage,spraying“Lingyan”from the revival period to jointing stage,Spraying“Zhibolong”before jointing stage can significantly reduce the length of the first internode of wheat.Spraying“Lingyan”during the revival period and jointing stage can also reduce the length of the second internode.Spraying“Suibanlv”during the breakthrough period can reduce the length of internodes between panicle and stem.The yield of wheat treated with 5 chemical control agents was significantly higher than that of the control treatment,with an increase of 7.73%~20.62%.The highest grain yield of wheat treated with“Suibanlv”was 7593.75 kg/hm^(2).It increased by 20.62%compared to the control treatment.The main reason for its increase in yield is to increase the number of grains and panicles per unit area.From the perspective of lodging resistance,spraying“Lingyan”(900 mL/hm^(2))in the field from the revival period to jointing stage,along with the addition of 2-diethylaminoethyl hexanoate(150 mL/hm^(2)),can effectively reduce wheat plant height and increase wheat lodging resistance.From the perspective of lodging resistance and yield increase,at the breakthrough stage,spraying“Suibanlv”(1500 mL/hm^(2))and 450 L water can increase wheat spike length and grain number per spike,which can effectively prevent wheat from lodging at maturity and improve wheat yield.

关 键 词：化控产品 抗折力 节间长度 抗倒 产量 

分 类 号：S512.1[农业科学—作物学]