Sodyum klorür tuzluluğunun kaplamalı ve kaplamasız yonca tohumlarının çimlenmesi üzerine etkisi

Yıl 2019, Cilt: 23 Sayı: 1, 31 - 38, 25.03.2019

Sinan Süheri , İlknur Kutlar Yaylalı , Duran Yavuz , Nurcan Yavuz

https://doi.org/10.29050/harranziraat.406323

Öz

Bu çalışma, Mayıs 2013
tarihinde Konya’da kontrollü sera şartlarında sodyum klorür tuzluluğunun
kaplanmış ve kaplanmamış yonca tohumları çimlenmesi üzerine etkisinin
araştırılması amacıyla yürütülmüştür. Saksı denemesi olarak kurulan deneme,
tuzluluk ana muamele, kaplanmış ve kaplanmamış yonca tohumları alt muamele
olarak bölünmüş parsel deneme planına göre tasarlanmıştır. Saksılar musluk suyu
(0.3 dS m^-1) veya elektriksel iletkenlikleri 3.0, 6.0 ve 9.0 dS m^-1
olan tuzlu sular ile sulanmıştır. Araştırmanın sonucunda, tuzluluğun
çimlenmenin başlangıç aşamasında tohumların çimlenmesini önemli derecede
etkilediği, kaplanmış ve kaplanmamış tohumlarda, toplam çimlenme yüzdesinin,
3.0 dS m^-1 değerinden daha yüksek tuzluluk seviyeleri hariç olmak
üzere %79’un üzerinde olduğu, 3.0 dS m^-1 değerinden daha yüksek
sulama suyu tuzluluk değerlerinde çimlenmenin istatistiki olarak farklı olduğu,
en yüksek çimlenme oran indeksi (%14.29), çimlenme indeksi (998.75), ve
çimlenme hızı katsayı (16.97) değerlerinin musluk suyu ile sulanan kaplanmış
tohumlardan, en düşük çimlenme oran indeksi (%1.79), çimlenme indeksi (138.75)
ve çimlenme hızı katsayısı (12.57) 
değerlerinin ise elektriksel iletkenliği 12.0 dS m^-1 olan
suyla sulanan kaplanmamış tohumlardan elde edildiği tespit edilmiştir. Erken
çimlenme değerlerinin düşük ortalama çimlenme zamanı (MGT) ve %50 çimlenme
zamanı (T₅₀) değerlerinin elde edildiği kaplanmış tohumlarda görüldüğü
bulunmuştur. 

Anahtar Kelimeler

Medicago sativa, Çıkış, Tuzluluk, Kireç

The effect of sodium chloride salinity on coated and uncoated alfalfa seeds germination

Öz

In this study, a
pod experiment was conducted to evaluate the effect of sodium chloride salinity
on germination of coated and uncoated seeds of alfalfa seeds under controlled
greenhouse conditions at Konya in May 2013. The experimental design was a split-split plot with salinity
treatments as main plots, coated and uncoated seeds subplots.  Pots were irrigated with tap water (0.3 dS m^-1)
or (3.0, 6.0 or 9.0 dS m^-1). As result of study, seed germination
was significantly affected by irrigation water salinity at the initial stage of
germination. For coated and uncoated seed, the final seed germination exceeded
79.00% except at the salt concentrations higher than 3.0 dSm^-1 where
germination percentage statically decreased down.  The highest
germination rate index (GRI, 14.29%), germination index (GI, 998.75), and
coefficient of velocity of germination (CVG, 16.97) values were obtained from
the coated seeds irrigated with the tap water while the lowest GRI (1.79%), GI
(138.75), and CVG (12.57) values were obtained from the uncoated seeds
irrigated with salt concentration of 
electrical conductivity (EC) of 12.0 dS m^-1. Earlier
germinations were recorded for coated seeds as indicated by lower value of mean
germination time (MGT) and time of 50%
germination (T₅₀).

Anahtar Kelimeler

Medicago sativa, Emergence, Chlorinity, Lime

Kaynakça

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