Pak J Biol Sci. 2020 Jan;23(11):1462-1472. doi: 10.3923/pjbs.2020.1462.1472.
Tomato (Solanum lycopersicum L.) is widely cultivated and consumed in many countries around the world, including Vietnam. Cytokinin (CK) is a plant hormone that plays a crucial role in numerous plant growth and developmental processes. A study was carried out to analyze the impacts of 6-benzyl adenine (6-BA, a type of CK) on some physiological and biochemical parameters of tomato varieties at the 5-leaf stage and the flowering stage cultivated in Thanh Hoa province, Vietnam.
The experiments consisted of two factors (6-BA concentration and tomato variety) arranged in a Split Plot design with three replications, in which the concentration of 6-BA (0 (control), 6 and 12 mg L-1) was the whole-plot factor and the tomato variety (P375, CS1, Pn and F) was the split-plot factor.
The results showed that indicators including plant height, dry matter content, chlorophyll a content, chlorophyll b content, total chlorophyll content, carotenoid content, vitamin C content, total organic acid content, catalase enzyme activity and peroxidase enzyme activity of tomato varieties treated with 6-BA at a concentration of 6 and 12 mg L-1 were higher than those of the control group. The study also showed that impacts of 6-BA on tomato physiological and biochemical parameters depend not only on the concentration of 6-BA but also on the developmental stages and plant varieties.
In general, CK has markedly influenced the physiological and biochemical parameters of tomato varieties. These results provide some insights into the role of CK in tomato growth and development.
番茄（Solanum lycopersicum L.）在世界许多国家广泛种植和食用，包括越南。细胞分裂素（CK）是一种植物激素，在许多植物生长和发育过程中起着关键作用。本研究旨在分析 6-苄基腺嘌呤（6-BA，一种 CK）对越南清化省种植的番茄品种在五叶期和开花期的一些生理生化参数的影响。
试验采用裂区设计，两个因素（6-BA 浓度和番茄品种），三重复。其中，6-BA 浓度（0（对照）、6 和 12mg/L）为主区因素，番茄品种（P375、CS1、Pn 和 F）为副区因素。
结果表明，用 6 和 12mg/L 6-BA 处理的番茄品种的株高、干物质含量、叶绿素 a 含量、叶绿素 b 含量、总叶绿素含量、类胡萝卜素含量、维生素 C 含量、总有机酸含量、过氧化氢酶活性和过氧化物酶活性等指标均高于对照组。研究还表明，6-BA 对番茄生理生化参数的影响不仅取决于 6-BA 的浓度，还取决于发育阶段和植物品种。
综上所述，细胞分裂素显著影响了番茄品种的生理生化参数。这些结果为细胞分裂素在番茄生长发育中的作用提供了一些见解。
