Influence of L-Tryptophan and Melatonin on Germination of Onion and Leek Seeds at Different Temperatures

Fatih HANCI; Mehmet ÇINGI; Hakan AKINCI

doi:https://doi.org/10.19159/tutad.559617

Makale detayları

Influence of L-Tryptophan and Melatonin on Germination of Onion and Leek Seeds at Different Temperatures

Yazarlar:

Fatih HANCI | Mehmet ÇINGI | Hakan AKINCI

Yayıncı:

Siirt University

Dergi:

Turkish Journal of Agricultural Research 2019 Vol.6 Issue 2, pp.214-221

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000715181

Sıklık:

Üç Yıllık

eISSN:

2528-858X

pISSN:

2148-2306

DOI:

https://doi.org/10.19159/tutad.559617

Özet:

 


In this study, the effects of pre-sowing L-Tryptophan and
Melatonin treatments on germination of onion and leek seeds under different
temperature conditions were investigated. Seeds were treated with 125, 250, 375
ppm L-Tryptophan and 5, 10, 25 uM Melatonin for 24 hours, then subjected to
germination tests at optimum (21 ˚C) chilling stress (7 ˚C) and hot temperature
(35˚C) conditions. Treated with distilled water seeds were considered as
controls. Treatment of onion seeds with 125 ppm L-tryptophan had a
significantly positive effect on final germination ratio at 7˚C while in leek
seeds, the 5 µM concentration of melatonin had a significant effect on the
germination index at the same temperature. In both Allium species, hormone treatments had no effect on mean
germination time. These values decreased depending on the increase in
temperature. The extreme level of high temperature burned certain percent of
seedlings, while at low temperature, seedlings were not harmed by cold
domination.

.

 


The aim of the study was to
evaluate the influence of different L-tryptophan and melatonin concentrations on
several germination parameters of onion and leek seeds under low and
high-temperature conditions. The experiments were carried out in laboratories of the
Erciyes University. Seeds were treated with 125, 250, 375 ppm L-Tryptophan and 5, 10, 25 uM
Melatonin for 24 hours, then subjected to germination tests at optimum (21 oC)
chilling stress (7 oC) and hot temperature (35 oC)
conditions. Seeds not treated were considered as controls. Treatment of onion
seeds with 125 ppm L-tryptophan had a significantly positive effect on final
germination ratio at 7 oC while in leek seeds, the 5 µM
concentration of melatonin had a significant effect on the germination index at
the same temperature. In both Allium species, hormone treatments had no effect
on mean germination time. These values decreased depending on the increase in
temperature. The extreme level of high temperature burned certain percent of
seedlings, while at low temperature, seedlings were not harmed by cold
domination.


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Makale detayları

Influence of L-Tryptophan and Melatonin on Germination of Onion and Leek Seeds at Different Temperatures

Yazarlar: Fatih HANCI | Mehmet ÇINGI | Hakan AKINCI

Yayıncı: Siirt University

Dergi: Turkish Journal of Agricultural Research 2019 Vol.6 Issue 2, pp.214-221

Belge Tipi: Makale

Yayın Tarihi: 6/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000715181

Sıklık: Üç Yıllık

eISSN: 2528-858X

pISSN: 2148-2306

DOI: https://doi.org/10.19159/tutad.559617

Sayı

Yazarlar:

Fatih HANCI | Mehmet ÇINGI | Hakan AKINCI

Yayıncı:

Siirt University

Dergi:

Turkish Journal of Agricultural Research 2019 Vol.6 Issue 2, pp.214-221

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000715181

Sıklık:

Üç Yıllık

eISSN:

2528-858X

pISSN:

2148-2306

DOI:

https://doi.org/10.19159/tutad.559617