Determination of the effect of plant growth regulators on agronomic characteristics of sweet corn by multivariate analysis

Yıl 2025, Cilt: 62 Sayı: 4, 523 - 536, 12.12.2025

Ruziye Karaman , Cengiz Türkay

https://doi.org/10.20289/zfdergi.1675873

Öz

Objective: This study was conducted to determine the effects of gibberellic acid (GA3) and sodium nitrophenol applications on agronomic traits in sweet corn.
Material and Methods: In the study designed as a factorial arrangement in a randomized block design, foliar applications of GA3 (T1), sodium nitrophenol (T2), and GA3 + sodium nitrophenol (T3) were applied to the plants.
Results: Plant growth regulators significantly improved the overall performance of sweet corn compared to the control. T3 treatment provided the highest values by increasing plant height by 30%, leaf area by 17%, cob diameter by 27%, cob yield by 12% and fresh cob yield by 22%. However, the effects of the treatments on cob length and seed number were limited. PCA revealed the significant effect of T3 treatment on vegetative traits such as plant height and leaf area, while correlation analysis showed that these traits had a strong positive relationship with fresh cob yield.
Conclusion: In sweet corn, these findings confirm the main contribution of vegetative development in yield increase and the high performance potential of the combined treatment. In conclusion, the combined application of GA3 and sodium nitrophenol offers a promising approach for sustainable yield increase in sweet corn.

Anahtar Kelimeler

Agronomic traits , gibberellic acid , plant growth regulators , sodium nitrophenol , sweet corn

Tatlı mısırda bitki büyüme düzenleyicilerin agronomik özelliklere etkisinin çok değişkenli analizler ile belirlenmesi

Öz

Amaç: Bu çalışma, şeker mısırda gibberellik asit (GA3) ve sodyum nitrofenol uygulamalarının agronomik özellikler üzerindeki etkilerini belirlemek amacıyla yürütülmüştür.
Materyal ve Yöntem: Tesadüf blokları deneme deseninde faktöriyel düzenlemeye göre tasarlanan çalışmada, bitkilere yapraktan GA3 (T1), sodyum nitrofenol (T2) ve GA3 + sodyum nitrofenol (T3) uygulamaları yapılmıştır.
Araştırma Bulguları: Bitki büyüme düzenleyicileri, kontrole kıyasla şeker mısırın genel performansını önemli ölçüde iyileştirmiştir. T3 uygulaması, bitki boyunu %30, yaprak alanını %17, koçan çapını %27, koçan randımanını %12 ve taze koçan verimini %22 oranında artırarak en yüksek değerleri sağlamıştır. Ancak koçan uzunluğu ve tane sayısı üzerinde uygulamaların etkisi sınırlı kalmıştır. PCA analizi, T3 uygulamasının bitki boyu ve yaprak alanı gibi vejetatif özellikler üzerindeki belirgin etkisini ortaya koyarken, korelasyon analizi bu özelliklerin taze koçan verimiyle güçlü bir pozitif ilişki içinde olduğunu göstermiştir.
Sonuç: Şeker mısırda, bu bulgular vejetatif gelişimin verim artışındaki temel katkısını ve kombine uygulamanın yüksek performans potansiyelini doğrulamaktadır. Sonuç olarak, GA3 ve sodyum nitrofenolün kombine uygulaması şeker mısırda sürdürülebilir verim artışı için umut verici bir yaklaşım sunduğunu göstermektedir.

Anahtar Kelimeler

Agronomik özellikler , gibberellik asit , bitki büyüme düzenleyiciler , sodyum nitrofenol , şeker mısır

Kaynakça

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