番茄灵,座果灵对大棚番茄保花保果的试验研究

为提高大棚番茄产量,防止大棚番茄落花落果,应用番茄灵(对氯苯氧乙酸)、座果灵(2,4—二氯苯氧乙酸)各30mg/kg,50mg/kg二种浓度,对大棚番茄的花序用喉头喷雾器进行喷雾处理,效果显著,既能增加果实膨大速度,提前8天上市,又可增加产量,特别是对早期产量有很大提高,30mg/kg番茄灵增产效果明显地高于座果灵,而番茄灵、座果灵又明显地高于对照86.2％和55.8％。

Effect Of 4-CPA And 2. 4-CPA On The Flower And Fruit Keeping Of Tomatoes In Tho, Greenhouse

In order to increase the yield of the greenhouse tomatoes and keep them from flower and fruit falling, 4 - CPA (2 - (4 - chlorophenoy )) acetic acid and 2,4 - CPA ( 1 - (2,4 -dichlorophenoy)) were used in 30mg/kg and 50 mg/kg levels, respectively. The inflorescences of tomatoes were sprayed by monkey-head type sprayer and the results were significant. On the one hand, the expansion speed of fruit incresed and the fruit was sent into market 8 days earlier. On the other hand, the yield increased, especially to the early stage of fruits. 4-CPA was more effective than 2, 4 - CPA. Meanwhile, 2,4 -CPA was more effective than control by 86. 2% and 55. 8% , respectively.