2种植物生长延缓剂对水培郁金香生长的影响  

Effects of two plant growth retardants on the growth of hydroponic Tulip

作　　者：田增智 于长青 李红艳 吴天宇[1] 张艳秋[1] 张惠华[1] 邢桂梅[1] TIAN Zengzhi;YU Changqing;LI Hongyan;WU Tianyu;ZHANG Yanqiu;ZHANG Huihua;XING Guimei(Flower Research Institute,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China;Beijing Huaxiang Flower&Wood Group Co.Ltd,Beijing 100071,China;Agricultural Technology Extension Station of Lishu County,Siping 136500,China)

机构地区：[1]辽宁省农业科学院花卉研究所,辽宁沈阳110161 [2]北京花乡花木集团有限公司,北京100071 [3]吉林省梨树县农业技术推广总站,吉林四平136500

出　　处：《辽宁林业科技》2024年第3期26-29,共4页Liaoning Forestry Science and Technology

基　　金：国家现代农业产业技术体系花卉沈阳综合试验站(CARS-23-G57);辽宁省农业科学院学科建设计划项目(2022DD051608);辽宁省农业科学院院长基金项目(2022MS0403);辽宁省农业科学院院长基金项目(2023QN2403)。

摘　　要：以前期筛选的适宜水培的郁金香品种‘荷兰设计’为试材,采用向培养液中添加植物生长延缓剂的方法,研究不同质量浓度比久(B9)和多效唑(PP_(333))对水培郁金香观赏性状的影响。结果表明:B9和PP_(333)均能使郁金香产生矮化效应,表现为植株矮小,叶色浓绿,株型紧凑。与CK相比,B9处理的株高平均降低18.69 cm,叶长平均减少3.64 cm;与CK相比,PP_(333)处理的株高平均降低30.66 cm,叶长平均减少3.94 cm。B9和PP_(333)施用质量浓度越大,矮化效果越明显,但B9质量浓度高于2500 mg·L^(-1)、PP_(333)质量浓度高于250 mg·L^(-1)时会产生药害。结合观赏及矮化效果,B9的最佳施用质量浓度为2000 mg·L^(-1),PP_(333)的最佳施用质量浓度为200 mg·L^(-1)。该研究结果对水培郁金香矮化栽培具有指导意义。The effects of different mass concentration ratios of daminozide(B9)and paclobutrazol(PP_(333))on the ornamental traits of hydroponic Tulip were studied by adding plant growth retardants to the culture solution using the previously selected Tulip cultivar'Dutch Design'suitable for hydroponics as the test material.The results showed that both B9 and PP_(333)had dwarfing effects on Tulip,resulting in short plants,dark green leaves,and compact plant shape.Compared with the CK,the plant height treated with B9 decreased by an average of 18.69 cm,and the leaf length decreased by an average of 3.64 cm.Compared with the CK,the plant height treated with PP_(333)decreased by an average of 30.66 cm,and the leaf length decreased by an average of 3.94 cm.The greater the applied mass concentration,the more obvious the dwarfing effect.However,phytotoxicity would occur when the mass concentration of B9 was higher than 2500 mg·L^(-1)and the mass concentration of PP_(333)was higher than 250 mg·L^(-1).Based on the ornamental and dwarfing effects,the optimal applied mass concentration of B9 was 2000 mg·L^(-1),and the optimal applied mass concentration of PP_(333)was 200 mg·L^(-1).The results of this study have guiding significance for the dwarfing cultivation of hydroponic Tulip.

关 键 词：郁金香 水培 植物生长延缓剂 矮化 

分 类 号：S682.263[农业科学—观赏园艺]