Journals / Turkish Journal of Biology / 2002 / Cilt: 26 - Sayı: 4

Aspirde polen kısırlık uyartısı için gibberellik asit uygulamasının tohumun fizyolojik aktivitesi ve içsel hormon seviyeleri üzerine etkisi

Effects of gibberellic acid treatment for pollen sterility induction on the physiological acivity and endogenous hormone levels of the seed in safflower

Pages
235–239
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

As a consequentce, it was indicated that poor germination and emergence vigor might be a major problem in hybrid safflower seeds produced from plants treated with gibberellic acid.

📌 3 Key Takeaways

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Objective & Hypothesis:In this research, our aim was to determine the effects of gibberellic acid, which was applied to safflower plants (Carthamus tinctorius L. cv.
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Key Findings & Data:Dinçer 5-118) for pollen sterility induction, on some physiological activity and endogenous hormone levels of the seeds.
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Conclusion & Impact:As a consequentce, it was indicated that poor germination and emergence vigor might be a major problem in hybrid safflower seeds produced from plants treated with gibberellic acid.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this research, our aim was to determine the effects of gibberellic acid, which was applied to safflower plants (Carthamus tinctorius L. cv. Dinçer 5-118) for pollen sterility induction, on some physiological activity and endogenous hormone levels of the seeds. Exogenously applied gibberellic acid (GA3) strongly influenced the endogenous hormone levels of the seeds by decreasing the levels of GA3 and zeatin, and increasing the levels of indole-3-acetic acid (IAA) and abscisic acid (ABA). The lowered endogenous GA3/ABA and zeatin/IAA ratios in the seeds significantly decreased the germination percentage and hypocotyl elongation, respectively. The seeds from GA3 treated plants had more hull percentage and less oil content than seeds from the non-GA3 treated plants. As a consequentce, it was indicated that poor germination and emergence vigor might be a major problem in hybrid safflower seeds produced from plants treated with gibberellic acid.

Özet

Özet: Bu araştırma, polen kısırlığı yaratmak için aspir bitkisine (Carthamus tinctorius l. ev. Dinçer 5-118) uygulanan gibberellik asidin tohumun bazı fizyolojik aktiviteleri ve içsel hormon seviyeleri üzerindeki etkilerini belirlemek amacıyla gerçekleştirilmiştir. Dıştan bitkilere uygulanan gibberellik asit (GA3) tohumların içsel GA3 ve zeatin seviyelerinde azalışlara, indol-3- asetik asit (IAA) ve absisik asit (ABA) seviyelerinde artışlara neden olarak, içsel hormon seviyeleri üzerinde önemli etkilerde bulunmuştur. Tohumların içsel GA3/ABA ve zeatin/IAA oranlarındaki azalışlar sırasıyla çimlenme oranının düşmesine ve hipokotil uzamasında yavaşlamaya neden olmuştur. Kontrol bitkilerin tohumlarına göre GA3 uygulanmış bitkilerin tohumlarında kabuk oranı artmış, yağ içeriği ise azalmıştır. Gibberellik asit uygulamaları ile elde edilen hibrid aspir tohumlarında zayıf çimlenme ve çıkış gibi önemli problemler ile karşılaşılabileceği sonucuna varılmıştır.

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Cite This Article

BAYDAR, H. (2022). Aspirde polen kısırlık uyartısı için gibberellik asit uygulamasının tohumun fizyolojik aktivitesi ve içsel hormon seviyeleri üzerine etkisi. Turkish Journal of Biology, Cilt: 26 - Sayı: 4, 235–239. https://ajindex.com/articles/600577

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