Effects of Coating Treatment with Aloe Vera and Glycerol on Germination Delay and Seed Viability of Wheat under Different Water Levels

This study was conducted to demonstrate the effect of seed coating onpreventing early germination to decrease possible seed damage. Forthis aim, bread wheat seeds were coated with Aloe vera and glycerolto determine how these substances can preserve seed viability byavoiding early germination. The seeds were coated with 5 differentconcentrations of Aloe vera or glycerol and irrigated with varies waterlevels. Water absorption and germination rates, seed viability afterfive days, and germination vigor following the second irrigation weredetermined. The seeds coated with glycerol absorbed the least amountof water. This was followed by seeds coated with Aloe vera anduncoated control seeds, respectively. Five hours after the initialirrigation, seeds coated with 100% and 80% of glycerol absorbed theleast amount of water of 9.15% and 14.85%, respectively. Seeds coatedwith 100% and 80% of Aloe vera absorbed slightly more water of23.96% and 29.01%, respectively. More concentrated coatings of Aloevera and glycerol were associated with lower germination rates butglycerol-coated seeds generally had the longest viability. Both coatingtreatments effectively preserved seed viability by delayinggermination at low water levels.

Aloe Vera ve Gliserol ile Kaplama İşleminin Buğdayın Farklı Su Seviyeleri Altında Çimlenme Gecikmesi ve Tohum Canlılığı Üzerine Etkileri

Düşük yağışla ıslanmış toprak çimlenme için yeterli olabilir fakat çimlendirilmiş tohumun canlılığının korunması için yeterli değildir. Bu nedenle, tohum kaplama uygulamasının çimlenmeyi geciktireceği ve bu riski azaltacağı düşünülerek bu çalışma yapılmıştır. Ekmeklik buğday tohumları, erken çimlenmeyi önleyerek tohum canlılığını ne kadar iyi koruduğunu belirlemek için Aloe vera ve gliserol ile kaplanmıştır. Tohumlar, kontrol tohumları hariç 5 farklı Aloe vera ve gliserol konsantrasyonu ile kaplanmış ve değişken miktarda su ile sulanmıştır. Su emme ve çimlenme oranları, 5 gün sonra canlılık ve ikinci bir sulama sonrasında çimlenme gücü ölçülmüştür. Gliserol ile kaplanan tohumlar en az suyu emmiş ve bunu Aloe vera ile kaplanmış tohumlar ve daha sonra kaplanmamış kontrol tohumları takip etmiştir. İlk sulamadan 5 saat sonra, %100 ve % 80 gliserol çözeltileri ile kaplanmış tohumlar en az suyu emmiştir (sırasıyla% 9.15 ve % 14.85). %100 ve %80 Aloe vera çözeltileri ile kaplanmış tohumlar, biraz daha fazla su emmiştir (sırasıyla%23.96 ve %29.01). Aloe vera ve gliserolün daha yoğun kaplamaları daha düşük çimlenme oranları ile ilişkili iken gliserol kaplı tohumlar genellikle en uzun yaşayabilirliğe sahip bulunmuştur. Her iki kaplama işlemi de düşük su seviyelerinde çimlenmeyi geciktirerek tohum canlılığını etkili bir şekilde korumuştur.

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