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在深液流水培的营养液中添加不同浓度的碘离子(I-)作为处理,研究碘对樱桃番茄开花结果和产量的影响。结果表明:碘处理的植株第3～5花序的着生节位分别比对照低2～3个节位;2.0mg.L-1碘处理和高浓度(5.0～6.0mg.L-1)碘处理的果实比对照提前5～8d成熟;1.0～4.0mg.L-1碘处理的坐果率与对照均无显著差异,而高浓度(5.0～6.0mg.L-1)碘处理的坐果率显著低于对照;低浓度(1.0～2.0mg.L-1)碘处理的花数、果数和产量均显著高于对照,而高浓度(5.0～6.0mg.L-1)碘处理的产量则显著低于对照;单果质量随着碘处理浓度的增高而降低,但是1.0～3.0mg.L-1碘处理与对照差异不显著。综合以上结果,在樱桃番茄栽培上以1.0～2.0mg.L-1的碘离子供给浓度最适宜。
The effects of iodine on the flowering and yield of cherry tomato were studied by adding different concentrations of iodide (I-) to the nutrient solution of deep-water hydroponic culture. The results showed that the internodes of 3 ~ 5 inflorescences of plants treated with iodine were 2 ~ 3 lower than those of the control respectively. The iodine concentrations of 2.0mg.L-1 and 5.0 ~ 6.0mg.L-1 iodine The fruits treated with iodine matured 5 to 8 days earlier than the control. There was no significant difference in the fruit setting rate between the 1.0 and 4.0 mg · L-1 iodine treatments and the control, while the fruit setting rates in the high concentration (5.0 ~ 6.0 mg.L-1) iodine treatments were significantly (1.0 ~ 2.0mg.L-1), the number of flowers and the number of fruits and the yield of iodine treatment were significantly higher than those of the control, while those of high concentration (5.0 ~ 6.0mg.L-1) Significantly lower than the control; single fruit quality with the iodine concentration decreased, but 1.0 ~ 3.0mg.L-1 iodine treatment and the control difference was not significant. Based on the above results, it is most suitable to supply the cherry tomato with 1.0 to 2.0 mg.L-1 of iodine ion.