Dormancy-breaking Seed Treatments for Datura stramonium L.

Mehmet Demir Kaya; Pınar Harmancı

Makale detayları

Dormancy-breaking Seed Treatments for Datura stramonium L.

Yazarlar:

Mehmet Demir Kaya | Pınar Harmancı

Yayıncı:

Ordu University

Ana Başlıklar:

Bitki Bilimi

Dergi:

Akademik Ziraat Dergisi Vol.12 Issue 1, pp.113-118

Belge Tipi:

Makale

Yayın Tarihi:

11/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293463

pISSN:

2147-6403

Anahtar kelimeler:

Özet:

 Purpose: The study aimed to overcome the seed dormancy of Datura stramonium L. by chemical scarification, pre-chilling, and different gibberellic acid GA3 levels. Materials and Methods: The seeds were prechilled at 4C and 10C for 7 days and treated with sulfuric acid 97-98 H2SO4 for 15 minutes, and increasing doses of GA3 250, 500, and 1000 ppm. Distilled water for hydration and untreated seeds served as a control. Results: The results showed that no germination was observed in the control and prechilled seeds of Datura stramonium L. The dormancy rate was 100 and the seed dormancy resulted from both hard seed coat and physical dormancy. Mean germination time and germination index of control seeds could not be calculated because no seed germination occurred. Although the chemical scarification showed a beneficial effect for breaking dormancy, the gibberellic acid applications were more effective seed treatments for increasing germination compared to sulfuric acid. The germination percentage increased from 0.0 to 44.5 in the seeds scarified and treated with 1000 ppm GA3, while the germination percentage of primed seeds with 1000 ppm GA3 was 68.5. Mean germination time was lessened by GA3 doses and scarification. Furthermore, the germination index was promoted by the applications of GA3, especially in the seeds without scarification. The higher germination index was obtained from control seeds under all levels of GA3. The highest shoot length was measured at the highest level of GA3 with 14.6 cm. Conclusion: Seed dormancy can be effectively broken by the application of 1000 ppm GA3 without chemical scarification.

 Purpose: The study aimed to overcome the seed dormancy of Datura stramonium L. by chemical scarification, pre-chilling, and different gibberellic acid GA3 levels. Materials and Methods: The seeds were prechilled at 4C and 10C for 7 days and treated with sulfuric acid 97-98 H2SO4 for 15 minutes, and increasing doses of GA3 250, 500, and 1000 ppm. Distilled water for hydration and untreated seeds served as a control. Results: The results showed that no germination was observed in the control and prechilled seeds of Datura stramonium L. The dormancy rate was 100 and the seed dormancy resulted from both hard seed coat and physical dormancy. Mean germination time and germination index of control seeds could not be calculated because no seed germination occurred. Although the chemical scarification showed a beneficial effect for breaking dormancy, the gibberellic acid applications were more effective seed treatments for increasing germination compared to sulfuric acid. The germination percentage increased from 0.0 to 44.5 in the seeds scarified and treated with 1000 ppm GA3, while the germination percentage of primed seeds with 1000 ppm GA3 was 68.5. Mean germination time was lessened by GA3 doses and scarification. Furthermore, the germination index was promoted by the applications of GA3, especially in the seeds without scarification. The higher germination index was obtained from control seeds under all levels of GA3. The highest shoot length was measured at the highest level of GA3 with 14.6 cm. Conclusion: Seed dormancy can be effectively broken by the application of 1000 ppm GA3 without chemical scarification.

 Purpose: The study aimed to overcome the seed dormancy of Datura stramonium L. by chemical scarification, pre-chilling, and different gibberellic acid GA3 levels. Materials and Methods: The seeds were prechilled at 4C and 10C for 7 days and treated with sulfuric acid 97-98 H2SO4 for 15 minutes, and increasing doses of GA3 250, 500, and 1000 ppm. Distilled water for hydration and untreated seeds served as a control. Results: The results showed that no germination was observed in the control and prechilled seeds of Datura stramonium L. The dormancy rate was 100 and the seed dormancy resulted from both hard seed coat and physical dormancy. Mean germination time and germination index of control seeds could not be calculated because no seed germination occurred. Although the chemical scarification showed a beneficial effect for breaking dormancy, the gibberellic acid applications were more effective seed treatments for increasing germination compared to sulfuric acid. The germination percentage increased from 0.0 to 44.5 in the seeds scarified and treated with 1000 ppm GA3, while the germination percentage of primed seeds with 1000 ppm GA3 was 68.5. Mean germination time was lessened by GA3 doses and scarification. Furthermore, the germination index was promoted by the applications of GA3, especially in the seeds without scarification. The higher germination index was obtained from control seeds under all levels of GA3. The highest shoot length was measured at the highest level of GA3 with 14.6 cm. Conclusion: Seed dormancy can be effectively broken by the application of 1000 ppm GA3 without chemical scarification.

 Amaç: Bu çalışmada, Datura stramonium L.un tohumlarında dormansiyi kırmak amacıyla yapılan ön üşütme ve sülfürik asit uygulaması ile giberellik asit GA3 dozlarının etkilerinin incelenmesi amaçlanmıştır. Materyal ve Yöntem: Tohumlara 4C ve 10C sıcaklıklarda 7 gün ön üşütme, sülfirik asitte 97-98lik H2SO4 15 dakika aşındırma ve artan dozlarda giberellik asit 250, 500 ve 1000 ppm GA3 uygulanmıştır. Tohumlar hidrasyon için distile su ile muamele edilmiş ve işlem görmemiş tohumlar kontrol olarak kullanılmıştır. Araştırma Bulguları: Kontrol ve ön üşütme yapılan D. stramonium tohumlarında çimlenme olmadığı belirlenmiştir. Tohumlarda dormansinin hem sert kabuktan hem de fizyolojik etkilerden kaynaklandığı ve dormansi oranının 100 olduğu belirlenmiştir. Kontrol tohumlarında ortalama çimlenme süresi ve çimlenme indeksi, çimlenme olmadığı için hesaplanamamıştır. Dormansiyi kırmada kimyasal aşındırma faydalı bir etki gösterse de, giberellik asit uygulaması sülfürik aside kıyasla çimlenmeyi arttırmada daha etkili bulunmuştur. Aşındırılmış ve 1000 ppm GA3 uygulanmış tohumların çimlenme yüzdesi 0.0dan 44.5e artarken, 1000 ppm GA3 uygulanan tohumların çimlenme oranı 68.5 olmuştur. GA3 dozları ve kimyasal aşındırma uygulaması ortalama çimlenme süresini kısaltmıştır. Ayrıca, aşındırma yapılmayan tohumların çimlenme indeksi GA3 uygulaması ile artmıştır. Tüm GA3 dozları, kontrol tohumlarından daha yüksek çimlenme indeksi vermiştir. En yüksek sürgün uzunluğu 14.6 cm ile en yüksek GA3 seviyesinde ölçülmüştür. Sonuç: Kimyasal aşındırma olmadan 1000 ppm GA3 uygulaması ile tohum dormansinin etkili bir şekilde kırılabileceği sonucuna varılmıştır.

Makale detayları

Dormancy-breaking Seed Treatments for Datura stramonium L.

Yazarlar:

Mehmet Demir Kaya | Pınar Harmancı

Yayıncı:

Ordu University

Ana Başlıklar:

Bitki Bilimi

Dergi:

Akademik Ziraat Dergisi Vol.12 Issue 1, pp.113-118

Belge Tipi:

Makale

Yayın Tarihi:

11/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293463

pISSN:

2147-6403

Jimson weed

GA3

Scarification

GerminationBoru çiçeği

GA3

Aşındırma

Çimlenme

Sayı

Makale detayları

Yazarlar: Mehmet Demir Kaya | Pınar Harmancı

Yayıncı: Ordu University

Ana Başlıklar: Bitki Bilimi

Dergi: Akademik Ziraat Dergisi Vol.12 Issue 1, pp.113-118

Belge Tipi: Makale

Yayın Tarihi: 11/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001293463

pISSN: 2147-6403

Sayı

Yazarlar:

Mehmet Demir Kaya | Pınar Harmancı

Yayıncı:

Ordu University

Ana Başlıklar:

Bitki Bilimi

Dergi:

Akademik Ziraat Dergisi Vol.12 Issue 1, pp.113-118

Belge Tipi:

Makale

Yayın Tarihi:

11/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001293463

pISSN:

2147-6403