Bazı Mısır Çeşitlerinin Erzurum Ovası Koşullarında Silaj Amaçlı Yetiştirilme Olanakları / Possibilities to Grow Some Corn Cultivars in Erzurum Plain Conditions for Silage Production

Abstract

OZET: Erzurum Ovasi kosullarinda, 2004 ve 2005 yillarinda yurutulen bu arastirmada 17 misir cesidi kullanilmistir. Cesitlerin ortalamasi olarak 2004 ve 2005 yillarindaki cikis suresi sirasiyla 12.9 ve 14.5 gun, tepe puskulu cikarma suresi 79.8 ve 82.4 gun, kocan puskulu cikarma suresi 84.7 ve 86.3 gun, silaj icin olgunlasma suresi 117.7 ve 110.4 gun, bitki basina yaprak sayisi 11.3 ve 11.8 adet, bitki basina kocan sayisi 1.2 ve 1.2 adet, bitki boyu 219.7 ve 214.3 cm, hasil verimi 6103.5 ve 6550.0 kg/da, hasil verimi icerisindeki sap, yaprak ve kocan oranlari % 40.8, 21.5, 37.8 ve % 41.9, 22.4, 35.8, kuru madde orani % 27.4 ve 27.1, kuru madde verimi 1376.3 ve 1774.4 kg/da, ham protein orani % 5.4 ve 5.6, ham protein verimi ise 90.5 ve 99.6 kg/da olmustur. Erzurum Ovasi kosullarinda silaj amaci ile yetistirilecek misir cesitlerinde erkencilik ve verim en onemli ozelliklerdir. Nispeten yuksek hasil, kuru madde ve ham protein verimine sahip DK-440 ve DK-585 cesitleri yorede silaj amaciyla yetistirilebilir. Anahtar kelimeler: Misir, silaj, adaptasyon, verim SUMMARY: This study was conducted using 17 corn cultivars in Erzurum conditions in 2004 and 2005. As an average of cultivars, emergence time was 12.9 and 14.5 days, days to 50 % tasseling were 79.8 and 82.4, days to 50 % silking were 84.7 and 86.3, days to maturity for silage were 117.7 and 110.4, leaf numbers per plant were 11.3 and 11.8, ear numbers per plant were 1.2 and 1.2, plant heights were 219.7 and 214.3 cm, green matter yields were 6103.5 and 6550.0 kg/da, stem, leaf and ear range in green matter 40.8, 21.5, 37.8 % and 41.9, 22.4, 35.8 %, dry matter contents were 27.4 and 27.1 %, dry matter yields were 1376.3 and 1774.4 kg/da, crude protein contents were 5.4 and 5.6 % and crude protein yields were 90.5 and 99.6 kg/da in 2004 and 2005 respectively. Earliness and productivity are the most important factors to select cultivar for silage under Erzurum Plain conditions. DK-440 and DK-585 cultivars which have relatively higher green matter yield, dry matter yield and crude protein yield, can be grown for silage production in this region. Key words: Corn, silage, adaptation, yield