The Effect of Potassium Sulphate Applications on Plant Growth and Nutrient Content of Pepper Plants Grown Under High Temperature Stress

Year 2024, Volume: 13 Issue: 1, 51 - 64, 05.07.2024

Lale Ersoy Yelderem Akhoundnejad Hayriye Yıldız Daşgan Baki Temur

https://doi.org/10.29278/azd.1446796

Abstract

Objective: Abiotic stresses are one of the most important factors that negatively affect plant growth. Especially in recent years, regression in plant growth and product losses have occurred due to high temperature caused by global climate change. The aim of the study was to reduce the effect of high temperature stress and increase plant tolerance with potassium. One of the ways to increase plant tolerance is proper fertilizer and fertilization techniques.
Material and Methods: Potassium sulfate fertilizer (K2SO4), which has a positive effect under abiotic stress conditions, was used as fertilizer in the experiment. The experiment was established according to the randomized plot design with 3 replications and 5 plants in each replication. The effects of foliar (0%, 1%, 2%, 3%) and soil (0-5-10-20 kg da-1) potassium applications on plant growth under high temperature stress were investigated.
Results: As a result of the application of potassium sulfate from the leaves or roots, the effect of the plant green part scale, the membrane injury index, the dry weight ratio of the green parts, the relative moisture content of the leaves, the nitrogen (N), potassium (K) and calcium (Ca) concentrations in the leaves were found to be statistically significant.
Conclusion: The results indicated that potassium applications under high-temperature stress led to increases in nitrogen (N), potassium (K), and chlorophyll concentrations, as well as in the relative moisture content of the leaves. It was found that visual damage to green parts and leaf membrane damage decreased under high-temperature stress. The experiment revealed that potassium sulfate positively influenced plant growth under stressful conditions, reducing damage severity and enhancing plant resistance. The experiment revealed that potassium sulfate positively influenced plant growth under stressful conditions, reducing damage severity and enhancing plant resistance.

Keywords

High-temperature, nutrient element, pepper, potassium sulfate, stress

Project Number

2020.FLTP.13.01.02

Yüksek Sıcaklık Stresi Altında Yetiştirilen Biber Bitkilerinde Potasyum Sülfat Uygulamalarının Bitki Gelişimi ve Bitkinin Besin Element İçeriğine Etkisi

Abstract

Amaç: Abiyotik stresler bitki gelişimini olumsuz etkileyen en önemli faktörlerden biridir. Özellikle son yıllarda küresel iklim değişikliğinin neden olduğu yüksek sıcaklık nedeniyle bitki gelişiminde gerileme ve ürün kayıpları meydana gelmektedir. Çalışmanın amacı yüksek sıcaklık stresinin etkisini azaltmak ve potasyum ile bitki toleransını artırmaktır. Bitki toleransını artırmanın yollarından biri de uygun gübre ve gübreleme teknikleridir.
Materyal ve Yöntem: Denemede gübre olarak, abiyotik stres şartlarında olumlu etki gösteren potasyum sülfat gübresi (K2SO4) kullanılmıştır. Deneme, tesadüf parselleri deneme desenine göre 3 tekerrürlü her tekerrürde 5 bitki olacak şekilde kurulmuştur. Kapya biber çeşidine yapraktan (%0, %1, %2, %3) ve topraktan (0-5-10-20 kg da-1) potasyum uygulamalarının yüksek sıcaklık stresi altında bitki gelişimine etkisi incelenmiştir.
Araştırma Bulguları: Yapraklardan veya köklerden potasyum sülfat uygulaması sonucunda, bitki yeşil aksam ölçeği, membran zararlanma indeksi, yeşil aksam kuru ağırlık oranı, yaprakların nispi nem içeriği, yapraklardaki azot (N), potasyum (K) ve kalsiyum (Ca) konsantrasyonların istatistiksel olarak önemli bulunmuştur.
Sonuç: Sonuçlar, yüksek sıcaklık stresi altında potasyum uygulamalarının, yaprakların nispi nem içeriğinin yanı sıra azot (N), potasyum (K) ve klorofil konsantrasyonlarında artışlara yol açtığını göstermiştir. Yüksek sıcaklık stresi altında yeşil kısımlardaki görsel hasarın ve yaprak membran hasarının azaldığı tespit edilmiştir. Deneme, potasyum sülfatın stresli koşullar altında bitki büyümesini olumlu yönde etkilediğini, hasar şiddetini azalttığını ve bitki direncini arttırdığını ortaya çıkarmıştır. Deneme, potasyum sülfatın stresli koşullar altında bitki büyümesini olumlu yönde etkilediğini, hasar şiddetini azalttığını ve bitki direncini arttırdığını ortaya çıkardı.

Keywords

Yüksek sıcaklık, besin elementi, biber, potasyum sülfat, stres

Supporting Institution

Şırnak Üniversitesi Bilimsel Araştırma Projeleri Birimi

Project Number

2020.FLTP.13.01.02

Thanks

Bu çalışmayı finanse eden Şırnak Üniversitesi Bilimsel Araştırma Projeleri Birimine Teşekkür ederim

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