甲壳素和2种杀菌剂对携带根腐病菌的百合种球生根及生长的影响  

Effects of Chitin and Two Fungicides on Bulb Rooting and Growth of Lily Carrying Pathogen of Root Rot

作　　者：同发宇 梁巧兰 魏列新 姜玉玲 王冬 张国印 陈应娥 田龙 TONG Fayu;LIANG Qiaolan;WEI Liexin;JIANG Yuling;WANG Dong;ZHANG Guoyin;CHEN Ying'e;TIAN Long(College of Plant Protection,Gansu Agricultural University,Gansu Provincial Crop Diseases and Pests Biological Control Engineering Laboratory,Lanzhou 730070,China)

机构地区：[1]甘肃农业大学植物保护学院,甘肃省农作物病虫害生物防治工程实验室,兰州730070

出　　处：《现代农药》2022年第3期58-63,共6页MODERN AGROCHEMICALS

基　　金：甘肃省科技重大专项(18ZD2NA010);兰州市科技局项目(2018-4-78)。

摘　　要：本试验以带有百合根腐病致病菌的百合种球作为试验材料,调查了水溶性肥料甲壳素和70%噁霉灵SP、50%氯溴异氰尿酸SP对防止须根酒化以及促进其生根、生长等方面的影响。结果表明,甲壳素和70%噁霉灵SP、50%氯溴异氰尿酸SP可促进无根种球生根,有根种球根系伸长和植株生长,以及防止须根酒化。其中,4000μg/mL甲壳素对无根和有根百合的生根及生长的促进效果最好,无根百合的新生根平均数量为4.33个,平均根长为8.00 mm,株高及生长率为157.30 mm和182.41%;有根百合的根系生长率为16.80%;株高及生长率为173.00 mm和88.04%。此外,4000μg/mL甲壳素防止百合种球须根酒化效果最好,防效高达64.41%。本研究结果可为合理种植百合及提高百合产量提供参考依据。In the study,lily bulbs with root rot pathogenic fungus were used as test materials to investigate the effects of chitin(water soluble fertilizer),70%oxamidil SP and 50%chlorobromoisocyanuric acid SP on preventing fibrous root from alcoholization,and promoting rooting,plant growth.The results showed that diseased lily bulbs treated with chitin,70%oxamidil SP and 50%chlorobromoisocyanuric acid SP could promote rooting of rootless bulbs,root elongation of rooted bulbs,plant growth and prevent fibrous root from alcoholization.Consequently,4000μg/mL chitin had the best promoting effect on the rooting and growth of rootless and rooted lily.For rootless lily,the average number of new root was 4.33.The average root length was 8.00 mm.The plant height and the growth rate were 157.30 mm and 182.41%,respectively.For rooted lily,the growth rate of root was 16.80%.The plant height and the growth rate were 173.00 mm and 88.04%,respectively.Furthermore,4000μg/mL chitin played an important role in preventing fibrous root from alcoholization,and control effect reached up to 64.41%.The findings could provide reference for rational planting and increasing yields of lily.

关 键 词：甲壳素 噁霉灵 氯溴异氰尿酸 百合种球 根腐病 生长调节 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]