Effects of L-Tryptophan and Melatonin on Seed Germination Performance of Radish and Spinach in Low and High Temperature Conditions
| Autor: | Ali Arslan, Fatih Hanci, Harun Ünal |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
turp
spinach melatonin Melatonin lcsh:Agriculture Animal science medicine lcsh:Agriculture (General) l-tryptophan General Environmental Science ispanak biology Chemistry Fresh weight General Engineering lcsh:S food and beverages biology.organism_classification lcsh:S1-972 l-triptofan Distilled water germination Germination radish General Earth and Planetary Sciences Spinach çimlenme medicine.drug |
| Zdroj: | Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi, Vol 5, Iss 2, Pp 203-211 (2019) |
| ISSN: | 2149-8245 |
| Popis: | The aim of this study was to evaluate the effects of L-Tryptophan and Melatonin treatments on germination of radish and spinach seeds under different temperature conditions. Treated with different concentrations of L-Tryptophan (125, 250, 375 ppm) and Melatonin (5, 10, 25 µM) seeds were subjected to germination tests at optimum (21 ˚C) chilling stress (7 ˚C) and high temperature (35 ˚C) conditions. Treated with distilled water seeds were considered as control. The tested hormones had significant effects on the average germination time; the time to reach 50% germination rate; and the fresh weight results of the radish seeds at low temperature (7 ˚C) condition. At this temperature, the treatment of 10 µM melatonin prolonged the mean germination time and the time to reach 50% germination rate of the seeds compared to the hormone untreated seeds. 125 ppm and 250 ppm L-Tryptophan treatments increased the fresh weight values. The greatest effect of the hormone treatment in spinach seeds was observed in the time to reach 50% germination rate at low temperature condition (7 ˚C). The 375 ppm dose of L-Tryptophan shortened this it as compared to the control, while 25 µM melatonin treatments prolonged this period. |
| Databáze: | OpenAIRE |
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