Seedling Growth and Fruit Set and Quality of Cucumber as Affected by Triazole Chemicals

Lee, J.-M.; Bae, Eun‐Ji; Lee, C.-W.; Kwon, Su-Jung

doi:10.17660/actahortic.1999.483.13

Cited by 1 publication

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“…Kim and Lee (1997) suggested that triazole-based PGRs show activity corresponding to that of auxin, such as increasing the rooting effect and inhibiting stem elongation owing to GA inhibition, also suggesting possible uses in the seedling industry. Triazole-based PGRs have been used to improve seedling quality by inhibiting the growth of tomato seedlings (Lee et al, 1997) and been used as well to prevent overgrowth due to transplanting density, temperature, humidity, and light conditions during the production of tomato seedlings (Zhang et al, 2003). However, the inhibitory effect of triazole-based PGRs on GA can reduce production because growth inhibition can act as a side effect depending on the concentration and frequency of the PGR treatment (Herrera-Medina et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Exogenous Gibberellin Application in Tomato (Solanum lycopersicum) Recovers Growth Inhibition Caused by Triazole Overuse

Lee,

Hahm,

Park

2023

HST

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Tomatoes are widely used worldwide and are an economically important crop. Tomatoes contain important secondary metabolites, as well as lycopene, β-carotene, vitamin C, and flavonoids. The quality of tomato seedlings varies depending on certain environmental factors during the seedling growth season. In Korea, diniconazole (DIN), a triazole-based plant growth regulator (PGR), is widely used to prevent seedling overgrowth. Misapplication of a triazole-based PGR results in excessive growth inhibition. However, little is known about the prevention of side effects such as growth inhibition after a DIN treatment. Therefore, this study sought to determine whether growth inhibition could be resolved by treatment with GA 3 , a phytohormone, after a DIN treatment. This study compared the survival rates of seedlings after a DIN treatment and analyzed the growth of tomato seedlings treated with GA 3 after a DIN treatment. To this end, DIN was diluted to a concentration of 250 mg•L -1 to be treated at 3 mg per plant, and GA 3 was diluted to a concentration of 5 mg•L -1 and 10 mg•L -1 to be treated at 2.5 mL per plant. GA 3 was administered up to two times per concentration. In the foliar application of GA 3 after the DIN treatment, no difference in growth was found between the treatments at different concentrations, but there was a significant difference between plants subjected to the single and double treatments. The results of this study suggest that a GA 3 treatment at a higher frequency than a high-concentration treatment can more effectively address the growth inhibition issue associated with a DIN treatment.

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Section: Introductionmentioning

confidence: 99%