番茄越夏栽培关键技术研究

Study on the Key Over-summer Cultivation Techniques of Tomato

从品种、嫁接及遮阳网覆盖3个方面，研究了番茄越夏栽培关键技术。结果表明：硬果型番茄品种满田2180高温胁迫下生长势强，坐果数多，果实商品性好，产量高，适宜于越夏栽培；SL-89和黄洋梨2种砧木嫁接番茄，可以使番茄生长势增强，坐果率提高，收获期提早4～6d，产量增加，能缓解高温胁迫对番茄的伤害；密度为70％的遮阳网于11：30—15：00覆盖，可降低棚内温度1～2℃，且光照强度在4万～7万lx，可作为越夏栽培措施。

The over-summer cultivation techniques of tomato were studied including the varieties, grafting and shading net. The results showed that under the high temperature stress, the variety of rigidity fruit type Mantian 2180 was suitable for over-summer cultivation with the characteristics of strong growth, high fruit setting rate, good marketability and high yield. Using SL-89 and Huangyangli as the stocks could enhance the growth vigor of tomato, increase the fruit setting rate and yield, harvest 4 -6 days earlier and relief the damage by high temperature stress. The temperature in the greenhouse was decreased by 1 -2℃ with covering shading net from 11 ： 30 to 15：00 and the 40 000 -70 000 Ix of sun light.