不同施钙量对温室番茄光合特性和产量及脐腐病发生率的影响

Effects of Different Calcium Dosage on Photosynthetic Characteristics,Yield and Incidence of Umbilical Rot in Greenhouse Tomatoes

本研究以“金福莱”番茄为试材,通过喷施不同浓度(0、0.1%、0.2%、0.3%、0.4%、0.5%)的外源氯化钙,研究外源钙肥对番茄植株生长、产量和脐腐病的影响。结果表明:喷施外源氯化钙可以提高番茄的光合速率和蒸腾速率,从而使番茄的株高、茎粗、最大叶长、最大叶宽、最大叶面积、叶绿素含量、单果重量、单株结果数和单株产量均显著增加,进而提高小区产量和折合667 m^(2)产量,同时降低脐腐病的发病率。采用0.2%氯化钙处理的番茄形态指标、生理指标和产量均明显高于其他浓度处理,且番茄果实脐腐病的发病率最低。

In this study,the Jinfulai tomato was used as the test material,the effects of exogenous calcium fertilizer on tomato plant growth,yield and umbilical rot were studied by spraying exogenous calcium chloride at different concentrations(CK,0.1%,0.2%,0.3%,0.4%,0.5%).The results showed that the spraying exogenous calcium chloride can improve the photosynthetic rate and transpiration rate of tomatoes,so make the tomato plant height,stem diameter,maximum leaf length,maximum leaf width,leaf area,chlorophyll content,single fruit weight per plant,fruit numbers and yield were significantly increased.Additionally,it improved plot yield and per-mu yield while reducing the incidence of umbilical rot.Notably,tomatoes treated with 0.2%calcium chloride exhibited the highest morphological index,physiological index,and yield compared to other concentrations,with the lowest incidence of umbilical rot observed in this group.