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越冬栽培番茄在低温弱光的生长环境下,常发生落花落果问题,施用外源激素可有效防治落花落果,选取4种外源激素为试材,以大果型、小果型2个番茄品种为研究对象,分别配制3种浓度对番茄进行蘸花处理,研究不同浓度激素对番茄坐果率、畸形果率及番茄果实外观品质的影响,以期筛选出较适合的外源激素及其适宜浓度。结果表明:整体上,对于小果型番茄,15mg·L~(-1)番茄灵理处的第3、4、5、6穗果的坐果率均较高,对于大果型番茄,各处理间第3、4穗果的坐果率均差异不显著(P<0.05),整体上以20mg·L~(-1)的2,4-D、15mg·L~(-1)的番茄灵处理的坐果率较高,15mg·L~(-1)的番茄灵、15mg·L~(-1)的新保花保果乐处理的畸形果率为零。在大果型中,15mg·L~(-1)番茄灵处理的果实横径和纵径较大,10mg·L~(-1)的丰达处理果形指数较大,接近于椭圆形。小果型番茄果实横、纵径和果形指数均没有显著差异(P<0.05)。20mg·L~(-1)2,4-D处理的大果型番茄产量较高,667m2产量为4 548.33kg,15mg·L~(-1)番茄灵处理的小果型产量较高,667m2产量为2 992.53kg。
Winter overwintering cultivation of tomatoes in the low temperature and low light growth environment often fall off the problem of flowers, the application of exogenous hormones can effectively prevent falling flowers, the selection of four exogenous hormones as the test material, large fruit, small fruit two tomato varieties To study the effects of different concentrations of hormones on tomato fruit set rate, the rate of deformed fruits and the appearance quality of tomato fruits, three kinds of concentrations were prepared respectively for dipping flowers in order to select more suitable exogenous hormones and their suitable concentrations. The results showed that on the whole, for the small fruit tomato, the fruit setting rate of the third, fourth, fifth, and sixth fruit of the 15 mg · L -1 tomato was higher. For the large fruit tomato, There was no significant difference in the fruit setting rate between the third and the third fruit (P <0.05). On the whole, with 20 mg · L -1 2,4-D and 15 mg · L -1 tomato seedling, The fruit setting rate of 15mg · L -1 tomatograss and 15mg · L -1 fresh berberine fruit was zero. In the large fruit type, the fruit diameter and longitudinal diameter of 15 mg · L -1 tomatograss were larger, and the fruit shape index of Fengda of 10 mg · L -1 was larger, which was close to the oval shape. There was no significant difference in fruit length, longitudinal diameter and fruit shape index of small fruit tomato (P <0.05). The yield of large fruit type tomato treated with 20 mg · L -1 2,4-D was higher, the yield of 667m 2 was 4 548.33kg, the yield of small fruit type treated with 15mg · L -1 tomato spirit was higher, The yield is 2 992.53 kg.