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植物生长调节剂具有促进或抑制蔬菜生长和发育的作用.在蔬菜生产上,应根据不同的种类和作用,选用不同的浓度和方法,正确地加以应用.1.萘乙酸 白莱、甘蓝的叶芽,用2000PPm的萘乙酸溶液快速浸沾,能促进生长.番茄枝条用50PPm的萘乙酸溶液浸泡10分钟后,扦插的枝条生很快且多,能大幅度地提高繁殖系数.马铃薯用0.01%的萘乙酸甲脂溶液处理后,能抑制马铃薯在贮藏期间发芽.2.赤霉素 把马铃薯种薯切块后浸在0.5—1PPm的赤霉素溶液中约10分钟,捞出晾干,放在潮湿的砂床上催芽,可打破其休眠.利用赤霉素在收获前10—20天喷洒芹菜、菠菜、茼蒿、苋莱、莴苣等.可增产10—30%.在瓜类蔬菜缺少雄花时,用50
Plant growth regulator has to promote or inhibit the growth and development of vegetables in the production of vegetables, should be based on different types and effects, the use of different concentrations and methods correctly applied .1, , With 2000PPm naphthalene acetic acid solution quickly soaking, can promote the growth of tomato shoots with 50PPm naphthalene acetic acid solution soak for 10 minutes, the cuttings were born quickly and more, can greatly improve the breeding coefficient of potato 0.01% NAA solution can inhibit the potato during storage.2.Gibberellin potato seedlings dipped in 0.5-1PPm gibberellin solution for about 10 minutes, remove and dry, put in Sprouting on a wet sand bed can break its dormancy.Use gibberellin to spray celery, spinach, chrysanthemum, amaranth, lettuce, etc. 10-20 days before the harvest can increase yield 10-30% .In the case of vegetables lack of male flowers, With 50