Köksal AYDINŞAKİR, Şekip ERDAL, Mehmet PAMUKÇU

FARKLI TUZ KONSANTRASYONLARININ SİLAJLIK MISIR (Zea mays L.) ÇEŞİTLERİNİN ÇİMLENME VE FİDE ÖZELLİKLERİNE ETKİSİ

Bu çalışma, farklı NaCl konsantrasyonlarının (0 “kontrol”, 2, 4, 6, 8 ve 10 dS m) bazı silajlık mısır çeşitlerinin (Burak, Efe, Hido ve Şafak) çimlenmesi ve erken fide gelişimi üzerine etkisini belirlemek amacıyla yürütülmüştür. Silajlık mısır tohumları 15 cm çapındaki petrilere her bir petride 8 adet tohum olacak şekilde ekilmişlerdir. Tohum ekiminden itibaren 5 gün sonra çeşitlerin çimlenme oranı, 9. günde ise çeşitlerin kök uzunluğu (cm), sürgün uzunluğu (cm), yaş kök ve sürgün ağırlığı (mg) ve kuru kök ve sürgün ağırlığı (mg) ölçümleri yapılmıştır. Araştırma sonucunda, çeşitlerin NaCl konsantrasyonlarına farklı tepkiler gösterdiği belirlenmiştir. Tuz stresi arttıkça çimlenme oranı ve bazı fide özellikleri ile ilgili değerlerde çeşitlere göre belirgin bir azalma olduğu belirlenmiştir. Maksimum kök uzunluğu (14.6 cm), sürgün uzunluğu (6.8 cm) kök taze ağırlığı (365 mg bitki), sürgün taze ağırlığı (235.7 mg bitki), kök kuru ağırlığı (51.5 mg bitki) ve sürgün kuru ağırlığı (30.6 mg bitki) Hido çeşidinden elde edilmiştir. Çeşitler arasında tuz stresine toleransı en yüksek Hido çeşidi olurken, tuz stresine en hassas çeşit Efe olmuştur.

Anahtar Kelimeler:

Silajlık mısır, tuzluluk, çimlenme, fide gelişimi

THE EFFECTS OF DIFFERENT SALT CONCENTRATIONS ON GERMINATION AND SEEDLING PARAMETERS OF SILAGE CORN (Zea mays L.) VARIETIES

The study was carried out to determine the effects of different NaCl concentrations (0 "control", 2, 4, 6, 8 and 10 dS m-1) on seed germination and early seedling growth of silage corn cultivars (Burak, Efe, Hido, Safak). Eight seeds of each cultivar for each treatment were placed in a petri-dish having a diameter of 15 cm. While the germination rate was measured 5 days after sowing, root length (cm), shoot length (cm), wet root and shoot weight (mg) and dry root and shoot weight (mg) were measured 9 days after sowing. The study showed that cultivars had different responses to NaCl concentrations. It was determined that the germination rate and some seedling characteristics were reduced with increasing salinity level. The results revealed that salinity had significantly (p≤0.001) affected all the parameters studied. Maximum root length (14.6 cm), shoot length (6.8 cm), root fresh weight (365 mg plant-1), shoot fresh weight (235.7 mg plant-1), root dry weight (51.5 mg plant-1), shoot dry weight (30.6 mg plant-1) were recorded in Hido variety. Among the cultivars, Hido was the most tolerant cultivar, while Efe was the most sensitive.

Keywords:

Silage corn, salinity, germination seedling growth Silajlık mısır, tuzluluk, çimlenme, fide gelişimi,

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