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番茄播前进行种子处理,有利于早出苗、齐苗和壮苗。根据不同要求与条件,种子处理可选择如下几种方法: 一、温水漫种 利用水的热力杀死种子表面及内部的病菌,如溃疡病等。方法是:先将种子用凉水浸泡10分钟,然后放入50℃的热水中,不断快速地搅动,使种子受热均匀,并随时补充热水,使水温稳定保持在50—52℃,15—30分钟后捞出放在凉水中散去余热,然后浸种4—5小时。此方法简便,成本低,杀菌力强。 二、药剂浸种 常用的浸种药剂有:①磷酸三钠浸种。将种子浸泡4—5小时后,放入10％磷酸三钠溶液中浸泡20—30分钟,然后用清水冲洗干净,再行催芽,能防止番茄病毒病。②福尔马林浸种。将浸泡4—5小时的种子,放入1％福尔马林溶液中(即40％甲醛溶液1份兑水99份),15—20分钟后取出用湿布包好,放在密闭的容器中闷2—3小时熏蒸
Tomato seed treatment before sowing, is conducive to early emergence, Qi Miao and strong seedlings. According to different requirements and conditions, seed treatment can choose the following methods: First, the warm water diffuse use of water heat to kill the seeds surface and internal bacteria, such as ulcer disease. The method is as follows: the seeds are soaked in cold water for 10 minutes, then placed in hot water at 50 ° C., agitated continuously and rapidly, the seeds are heated evenly, hot water is added at any time, the water temperature is kept stable at 50-52 ° C., 30 minutes after the fish out in cold water to disperse the heat, then soaking 4-5 hours. This method is simple, low cost, strong bactericidal power. Second, the soaking agent commonly used soaking agents are: ① trisodium phosphate soaking. Soak the seeds for 4-5 hours, soak in 10% trisodium phosphate solution for 20-30 minutes, then rinse with clean water and germinate again to prevent tomato virus disease. ② formalin soaking. The soaked 4-5 hours of seeds, into 1% formalin solution (ie, 40% formaldehyde solution 1 watered 99), 15-20 minutes after taking out with a damp cloth, placed in a closed container Stuffy 2-3 hours fumigation