Blossom‐end rot is generally considered a calcium‐related physiological disorder. The results of the previous studies show that several factors such as plant conditions can be effective on the blossom‐end rot incidence. Therefore, the present study was undertaken to investigate the effect of the sink/source ratio on the incidence of the blossom‐end rot of two greenhouse tomato (Solanum lycopersicum L.) cultivars: ‘Grandella’ and ‘Isabella’. To this end, four treatments were applied: saving one fruit per truss (1F), two fruits per truss (2F), three fruits per truss (3F), and no fruit pruning (control). The results showed that the tomato cultivar ‘Isabella’ was more susceptible to the blossom‐end rot than ‘Grandella’. Decreasing the sink/source ratio increased the incidence of the blossom‐end rot and the relative fruit growth rate. The correlation between the blossom‐end rot incidence and the relative fruit growth rate showed that the fruit growth rate could be regarded as an important factor in the incidence of this disorder. Endogenous auxin and cytokinin concentrations acted as the regulators of the fruit growth rate and influenced it. Slowing down the relative growth rate by keeping proper sink/source ratio based on tomato cultivar is, therefore, an effective, cheap and healthy way to control the incidence of the blossom‐end rot, especially in organic farming.

中文翻译：

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贮源比对番茄果实生长，花end腐烂发生率和植物激素含量之间的关系

开花期腐烂通常被认为是与钙有关的生理性疾病。先前研究的结果表明，诸如植物条件之类的几个因素可能对开花期腐烂发生率有效。因此，本研究旨在研究水槽/源比对两个温室番茄（茄属番茄）开花末端腐烂发生率的影响。L.）品种：“ Grandella”和“ Isabella”。为此，应用了四种处理方法：每个桁架节省一个水果（1F），每个桁架节省两个水果（2F），每个桁架节省三个水果（3F），并且不进行任何水果修剪（对照）。结果表明，番茄品种“ Isabella”比“ Grandella”更容易受到开花期腐烂的影响。降低源/源比，增加了花end腐烂的发生率和相对的水果生长率。开花期腐烂发生率与相对果实生长速率之间的相关性表明，果实生长速率可以被认为是该疾病发生率的重要因素。内源性植物生长素和细胞分裂素的浓度充当果实生长速率的调节剂并对其产生影响。通过根据番茄品种保持适当的汇/源比来减慢相对增长率，