中文摘要：

利用植物生长调节剂进行了抑制徒长、培育番茄穴盘壮苗的试验。结果表明，穴盘苗三叶期叶喷200mg／L的多效唑和50mg／L的甲壳素提高了番茄叶片的总叶绿素含量、净先合速率、蒸腾速率和根系活力，有效控制番茄穴盘苗的徒长，提高秧苗质量，而羟烯腺的效果不佳。

英文摘要：

Studied effects of three different plant growth regulators on inhibition excessive growth of tomato seedlings. The results showed that foliar spray of 200 mg/L Paclobutrazol and 50 mg/L Chitin promoted the total chlorophyll content, net photosynthetic rate, transpiratory rate and root vigour in trefoil stage, which led to inhibit excessive growth and improve quality of tomato plug seedlings. The effects of adenine was not significant.