不同植物生长延缓剂对水稻抗倒伏能力及产量的影响  

Effects of Different Plant Growth Retardants on Lodging Resistance and Yield of Rice

作　　者：彭宏辉 田建 殷智力 田家顺 王昆 PENG Honghui;TIAN Jian;YIN Zhili;TIAN Jiashun;WANG Kun(Agricultural Service Center of Zhijiang Township,Zhijiang Dong Autonomous County,Zhijiang Hunan 419100;Plant Protection and Inspection Station of Zhijiang Dong Autonomous County,Zhijiang Hunan 419100;Hunan Heyi Crop Science Co.,Ltd.,Changsha Hunan 410125)

机构地区：[1]芷江侗族自治县芷江镇农业服务中心,湖南芷江419100 [2]芷江侗族自治县植保植检站,湖南芷江419100 [3]湖南禾益作物科学有限公司,湖南长沙410125

出　　处：《现代农业科技》2024年第16期73-75,共3页Modern Agricultural Science and Technology

摘　　要：为进一步明确不同植物生长延缓剂在水稻分蘖末期的施用效果,选择3种已登记在水稻上的植物生长延缓剂(10%烯效唑悬浮剂、5%调环酸钙悬浮剂和30%多唑·甲哌鎓悬浮剂),验证其对水稻抗倒伏能力及产量的影响。结果表明:3种植物生长延缓剂均能有效降低水稻株高,显著增加水稻产量,其中30%多唑·甲哌鎓悬浮剂有效成分用量90 g/hm~2处理对水稻株高的抑制效果及抗倒伏能力最好,株高抑制率和抗倒伏效果分别为6.80%和72.8%,水稻增产率达8.9%。本研究所选3种供试药剂均可在生产上推广应用,助力水稻高产与稳产。In order to further clarify the application effects of different plant growth retardants in the late tillering stage of rice,this paper selected three plant growth retardants registered on rice(10%uniconazole SC,5%prohexadione calcium SC,and 30%paclobutrazol·mepiquat chloride SC)to verify their effects on lodging resistance and yield of rice.The results showed that all three plant growth retardants could effectively reduce the height of rice plants,and signifi-cantly increase yield.Among them,30%paclobutrazol·mepiquat chloride SC 90 g/hm2(effective ingredient)had the best inhibitory effect on rice plant height and lodging resistance.The inhibition rate of plant height and lodging resistance effect were 6.80%and 72.8%,respectively,and the rice yield increase rate reached 8.9%.The three tested reagents selected in this study could all be promoted and applied in production,helping to achieve high and stable yields in rice.

关 键 词：水稻 植物生长延缓剂 抗倒伏 产量 

分 类 号：S436.631.1[农业科学—农业昆虫与害虫防治] S481.9[农业科学—植物保护]