江苏农业学报2026，Vol.42Issue(5)：1004-1014,11.DOI:10.3969/j.issn.1000-4440.2026.05.014
外源激素萘乙酸和6-苄氨基嘌呤对番茄侧枝生长和植株形态的影响
Effects of exogenous hormones naphthylacetic acid and 6-benzylaminopurine on lateral branch growth and plant morphology in tomato
摘要
Abstract
The use of exogenous hormones to regulate the plant type of tomato and other crops with strong lateral branch growth is the guarantee of modern high-efficiency agricultural production.In order to clarify the regulatory mecha-nism of naphthylacetic acid(NAA)and 6-benzylaminopurine(6-BA)on tomato plant type,the effects of exogenous NAA and 6-BA at different concentrations and application frequencies on tomato lateral branch growth and plant morphology were analyzed by using sparse-lateral-branch tomato variety NT823 and lush-lateral-branch tomato variety NT68 as materials.The results showed that the application concentration and frequency of NAA and 6-BA had significant effects on the lateral branch growth and plant morphology of tomato.53.7μmol/L NAA significantly inhibited the lateral branch growth of NT68 tomato,while 400.0 μmol/L 6-BA signifi-cantly promoted the lateral branch growth of NT823 tomato.Three to four applications of NAA could effectively inhibit tomato lateral branch growth and promote plant height and stem diameter.One application of 6-BA had the greatest promoting effect on the number of lateral branches,and three to four applications of 6-BA was most conducive to the elonga-tion of lateral branches and the development of stem diameter,but also significantly inhibited the growth of plant height.The sensitivity of NT823 to NAA and 6-BA was higher than that of NT68,and the sensitivity of high-node lateral branch length to NAA and 6-BA was higher than that of low-node lateral branch length.The results of this study provide a basis for the targeted regulation of tomato plants through the rational application of exogenous hormones NAA and 6-BA.关键词
番茄/侧枝/植株形态/萘乙酸/6-苄氨基嘌呤Key words
tomato/lateral branch/plant morphology/naphthylacetic acid(NAA)/6-benzylaminopurine(6-BA)分类
农业科技引用本文复制引用
邱惠玲,陈政,周念念,张元昊,徐艳,丁飞,蒋芳玲,周蓉,吴震..外源激素萘乙酸和6-苄氨基嘌呤对番茄侧枝生长和植株形态的影响[J].江苏农业学报,2026,42(5):1004-1014,11.基金项目
国家自然科学基金联合基金项目(U1903106) （U1903106）
中央高校基本科研业务费项目(KYZZ2021004) （KYZZ2021004）
江苏高校优势学科建设工程项目(PAPD) （PAPD）
