Fotosentez sentezini uyararak ve potasyum bileşikleri kullanarak guava meyvesinin kalitesini iyileştirme.

Abstract

Çalışmamız, Mısır'ın Beheira Valiliği, Badr bölgesinde yetiştirilen yaygın Mısır guava çeşidi (Mamora) ağaçları üzerinde 2023 ve 2024 olmak üzere iki ardışık sezonda gerçekleştirilmiştir. Ağaçlar 10 yaşında olup, 5x5 m aralıklarla dikilmiş ve özel bir bahçede damlama sulama sistemi altında yetiştirilmiştir. Ağaçlara her iki sezonda da meyve tutumundan sonra ve iki hafta sonra olmak üzere iki kez ilaçlama yapılmıştır. Uygulamalar arasında kontrol olarak musluk suyu, 500 ppm potasyum sitrat, 500 ppm potasyum silikat, 0,5 mM salisilik asit, 5 ppm triakontanol, 500 ppm potasyum sitrat + 0,5 mM salisilik asit ve 500 ppm potasyum silikat + 0,5 mM salisilik asit yer almıştır. Yüzey gerilimini azaltmak ve temas açısını artırmak için tüm işlemlere %0,05 (hacim/hacim) oranında iyonik olmayan yüzey aktif madde üst filmi eklendi. Sonuçlar, 500 ppm potasyum silikat + 0,5 mM salisilik asit kombinasyonunun, 5 ppm triakontanol kombinasyonunu takiben fiziksel ve kimyasal özelliklerde önemli bir artışa neden olduğunu gösterdi. Bu nedenle, 5 ppm triakontanol ve 500 ppm potasyum silikat + 0,5 mM salisilik asit kombinasyonunun iki kez kullanılması önerilir.

Keywords

• triakontanol
• salisilik asit
• potasyum silikat
• potasyum sitrat
• guava
• meyve kalitesi

Improving Fruit Quality of Guava by Stimulating the Synthesis of Photosynthesis and by Potassium Compounds.

Abstract

Our studies was carried out for two successive seasons 2023 and 2024 on common Egyptian guava variety (Mamora) trees grown at badr district, Beheira Governorate, Egypt. The trees were 10 -years-old spaced at 5×5 m and grown under a drip irrigation system in a private orchard. The trees were sprayed twice after fruit set and two weeks later in both seasons. Treatments included tap water as the control, Potassium citrate at (500 ppm), Potassium silicate at (500 ppm), Salicylic acid at (0.5 mM), Triacontanol at (5 ppm), Potassium citrate at (500 ppm) + Salicylic acid at (0.5 mM) and Potassium silicate at (500 ppm) + Salicylic acid at (0.5 mM). The non-ionic surfactant top film at 0.05% (v/v) was added to all treatments to reduce the surface tension and to increase the contact angle. The results indicated that Potassium silicate at (500 ppm) + Salicylic acid at (0.5 mM) resulted in a significant increase in physical characteristics and chemical characteristics followed by Triacontanol at (5 ppm). So the use of Triacontanol at (5 ppm) and Potassium silicate at (500 ppm) + Salicylic acid at (0.5 mM) two times is recommended.

Keywords

• triacontanol
• salicylic acid
• potassium silicate
• potassium citrate
• guava
• fruit quality

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