Bu araştırma 2015 yılında Ordu’da yürütülmüştür. Araştırmada 13 mısır çeşidi materyal olarak kullanılmıştır.
Araştırma tesadüf blokları deneme desenine göre 3 tekerrürlü olarak yapılmıştır. Araştırmada bitki boyu 309.93-
365.20 cm, ilk koçan yüksekliği 99.80-150.63 cm, sap çapı 23.44-27.84 mm, yaprak sayısı 11.67-13.63 adet, tepe püskülü gösterme süresi 55-65 gün, koçan püskülü gösterme süresi 59-67 gün, stover verimi 4525.17-5984.28 kg/
da, koçan verimi 2166.17-3569.57 kg/da, yaprak/sap oranı % 35.86-53.85, koçan/bitki oranı % 32.10-41.10, yeşil ot verimi 6736.33-9476.72 kg/da, kuru madde verimi 1758.41-2153.43 kg/da, ADF oranı % 25.61-30.80, NDF oranı % 50.57-57.43, ham protein oranı % 7.63-9.32 arasında değişmiştir. En yüksek yeşil ot verimi Everest, TK 6063, OSSK 602, Sagunto, Cadız, Hido ve Carella çeşitlerinden elde edilmiştir.
This research was to determine in 2015 vegetation period in Ordu. In research, 13 maize varieties was used as experimental materials. There search was done 3 times according to randomized block test pattern. In research, plant height changed between 309.93-365.20 cm, ear height changed between 99.80-150.63 cm, stem diameter changed between 23.44-27.84 mm, leaf count changed between 11.67-13.63, sowing to silking time changed between 55-65.33 days, anthesis to silking time changed between 59-67.33 days, stover yield changed between 4525.17-5984.28 kg/da, core yield changed between 2166.17-3569.57 kg/da, leaf/stem rate changed between 35.86-53.85 %, core/plant rate changed between 32.10-41.10 %, forage yield changed between 6736.33-9476.72 kg/da, dry matter yield rate changed between 1758.41-2153.43 kg/da, ADF rate changed between 25.61-30.80 %, NDF rate changed between 50.57-57.43 %, crude protein rate changed between 7.63-9.32 %. The highest green herb yield was obtained from Everest, TK 6063, OSSK 602, Sagunto, Cadiz, Hido and Carella varieties.