tailieunhanh - Determination of sowing dates of sweet corn (Zea mays L. saccharata Sturt.) under Fianliurfa conditions

This study was conducted to determine optimum sowing dates for sweet corn in the Southeastern Anatolia region. The research was carried out at the Agricultural Research Station of Harran University in fianliurfa during 2000 and 2001 | Turk J Agric For 28 (2004) 83-91 © TÜB‹TAK Determination of Sowing Dates of Sweet Corn (Zea mays L. saccharata Sturt.) under fianl›urfa Conditions Abdullah ÖKTEM* Harran University, Faculty of Agriculture, Department of Field Crops, 63200 fianl›urfa - TURKEY A. Gülgün ÖKTEM Ministry of Agriculture, Regional Directorate, 63100 fianl›urfa - TURKEY Yalç›n COfiKUN Harran University, Faculty of Agriculture, Department of Field Crops, 63200 fianl›urfa - TURKEY Received: Abstract: This study was conducted to determine optimum sowing dates for sweet corn in the Southeastern Anatolia region. The research was carried out at the Agricultural Research Station of Harran University in fianl›urfa during 2000 and 2001. Sowing dates were April 25, May 10, May 25, June 10, June 25, July 10, July 25 and August 10. Based on the sowing dates, fresh ear yield, duration of tasseling, ear diameter, kernel numbers per ear, single fresh ear weight and husk ratio parameters were statistically significant (**P < ) in both years. The highest fresh ear yields were and kg ha-1 for the 25 July sowing date in 2000 and 2001, respectively. The lowest fresh ear yields were and kg ha-1 for the April 25 sowing date in 2000 and 2001, respectively. Fresh ear yield decreased with early sowing dates (from April 25 to June 25) in both years. The results indicate that optimal sowing dates for sweet corn could be from June 25 to July 25 in fianl›urfa and similar Southeastern Anatolia regions. Key Words: sowing date, sweet corn, Harran Plain, Southeastern Anatolia fianl›urfa Koflullar›nda fieker M›s›r (Zea mays L. saccharata Sturt.) Ekim Zaman›n›n Belirlenmesi Özet: Bu çal›flma fleker m›s›r›n Güneydo¤u Anadolu bölgesinde en uygun ekim zaman›n› belirlemek amac›yla Harran Üniversitesi Ziraat Fakültesi Deneme alan›nda 2000 ve 2001 y›llar›nda fianl›urfa’da yürütülmüfltür. Çal›flmada; 25 Nisan, 10 May›s, 25 May›s, 10 Haziran, 25 Haziran, 10 Temmuz, 25 Temmuz, 10 .