苗龄对茄果类蔬菜扦插苗茎基不定根发生的影响  

Effect of Seedling Age on Adventitious Root Formation at Stem Bases of Solanaceous Vegetables Cuttings

作　　者：张晓蕊 董春娟[1] 尚庆茂[1] ZHANG Xiaorui;DONG Chunjuan;SHANG Qingmao(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops,Ministry of Agriculture and Rural Affairs,Beijing 100081,China)

机构地区：[1]中国农业科学院蔬菜花卉研究所,农业农村部园艺作物生物学与种质创制重点实验室,北京100081

出　　处：《中国蔬菜》2021年第5期58-63,共6页China Vegetables

基　　金：国家重点研发计划项目(2020YFD1000300);国家现代农业产业技术体系建设专项(CARS-25);中国农业科学院科技创新工程项目(CAAS-ASTIP-IVFCAAS);现代农业人才支撑计划项目(2016)。

摘　　要：以番茄品种中杂302、辣椒品种中椒6号和茄子品种园杂471为试材,幼苗分别培养至2叶1心、3叶1心、4叶1心,茎基部平切、扦插,通过测定扦插苗茎基不定根发生数量、总长度和生根区域等指标,研究苗龄对茄果类蔬菜扦插苗茎基不定根发生的影响。结果表明:番茄、辣椒、茄子扦插苗茎基不定根发生存在显著差异,番茄扦插苗茎基不定根发生时间、数量、总长度均优于辣椒和茄子;苗龄对番茄、辣椒扦插苗茎基不定根发生时间没有影响,苗龄增大延迟茄子扦插苗不定根的发生;不定根发生数量番茄和茄子3叶1心扦插苗最多,辣椒4叶1心扦插苗最多;不定根总长度番茄3叶1心扦插苗最长,茄子和辣椒均为2叶1心扦插苗最长。Taking tomato variety‘Zhongza 302’,pepper variety‘Zhongjiao No.6’and eggplant variety‘Yuanza 471’as test material,this experiment cultured the seedlings to 2-leaf stage,3-leaf stage and 4-leaf stage,respectively;cutted the stems at base and inserted them into water.Then the indexes including number of adventitious roots,total root length and rooting area were measured,so as to study the effects of seedling age on adventitious root formation at stem bases of solanaceous vegetables cuttings.The results showed that there were obvious differences in adventitious root formation of tomato,pepper and eggplant cuttings.The formation time,quantity and total length of adventitious roots at stem bases of tomato cutting are better than those of pepper and eggplant.The occurrence time of adventitious roots of tomato and pepper cuttings was not effected by seedling age,but the occurrence of adventitious roots of eggplant cuttings was delayed by seedling age increase.The number of adventitious roots was larger in tomato and eggplant with 3-leaf stage and pepper with 4-leaf stage.The total length of adventitious roots was the longest when tomato in 3-leaf stage,both eggplant and pepper in 2-leaf stage.

关 键 词：茄果类蔬菜 苗龄 扦插 不定根 

分 类 号：S641[农业科学—蔬菜学]