Electrical Conductivity Relates Seed Germination and Seedling Emergence in Tagetes Seed Lots

Abstract

In this study, we tested whether electrical conductivity of solute leakage was related to seed germination, mean germination time, 24th hour seed germination, seedling emergence percentage, mean emergence time and seedling dry weight in nine different tagetes seed lots. Normal seed germination percentages of seed lots ranged between 55 and 96 %, and electrical conductivity values were between 151 and 770 µScm⁻¹g⁻¹. Seedling emergence ranged between 68 and 95 %, mean emergence time was 3.9 to 5.1 days, and seedling dry weight 3.1-8.1 g/plant. Electrical conductivity was significantly related to normal germination (R²=0.64, p<0.01), 24 h radicle emergence (R²=0.90, p<0.001), mean germination time (R²=0.92, p<0.001), seedling emergence percentage (R²=0.86, p<0.001), mean emergence time (R²=0.87, p<0.001) and seedling dry weight (R²=0.67, p<0.05). Results indicated that electrical conductivity is a potential seed quality test for tagetes seeds.

Keywords

• Flower seeds
• Electrical Conductivity
• Seed Quality
• marigold

Kadife Çiçeği Tohumlarında Elektriksel İletkenliğin Tohum Çimlenmesi ve Fide Çıkışı ile İlişkisi

Abstract

Bu çalışmada elektriksel iletkenlik testinin kadife çiçeği tohumlarında toplam, normal tohum çimlenmesi, ortalama çimlenme zamanı, 24 saat kökçük çıkışı fide çıkış oranı fide çıkış zamanı ve fide yaş ağırlığı ile ilişkilendirebileceği araştırılmıştır. Toplam çimlenme %96’dan yüksek, normal çimlenme %55 ve 96 arasında, Eİ değerleri 151 ve 770 µScm⁻¹g⁻¹ arasında oluşmuştur. Fide çıkış oranı %68 ve 95 arasında, ortalama çıkış zamanı ise 3.9 ile 5.1 gün arasında, fide kuru ağırlığı da 3.1 ile 8.1 g/bitki arasında değişmiştir. Elektriksel iletkenlik toplam çimlenme (R²=0.89, p<0.001), normal çimlenme (R²=0.64, p<0.01), 24 saat kökçük çıkışı (R²=0.90, p<0.001), ortalama çimlenme zamanı (R²=0.92, p<0.001) değerleri ile anlamlı bir ilişki göstermiştir. Fide çıkış oranı (R²=0.86, p<0.001), ortalama çıkış zamanı (R²=0.87, p<0.001), fide kuru ağırlığı (R²=0.67, p<0.05) ile de Eİ değerlerinin istatistiksel olarak anlamlı şekilde ilişkili olduğu saptanmıştır.

Keywords

• Çiçek Tohumları
• Elektriksel İletkenlik
• Kadife Çiçeği
• Tohum Kalitesi

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