玉米新杂交种金凯1号选育报告

金凯1号是甘肃省金源种业开发有限公司以自交系K12为母本，以自育自交系J398为父本配制的玉米杂交种。在甘肃省玉米区试中，2006、2007年折合平均产量分别为12589．5、12970．5kg／hm^2，较对照品种酒试20号分别增产4．7％、1．7％。该品种高抗红叶病，中抗玉米矮花叶病、丝黑穗病和茎腐病；籽粒合粗蛋白9．81％、赖氨酸0．32％、灰分1．21％、粗脂肪3．50％、淀粉76．81％、水分11．00％、容重703．8g／L。适宜≥10℃的有效积温在2650℃以上的地区推广种植。

Breeding Report of A New Corn Hybrids Variety Jinkai 1

Jinkai 1 was a new corn hybrids variety bred by crossing with the parental combination of inbred line K12/ self fertile inbred line J398 in Gansu Province Jinyuan Seed Industry Development Co. , Ltd. The average yield of Jinkai 1 were respectively 12 589.5 kg/hm^2, 12 970. 5 kg/hm^2 and 4. 7 %, 1.7 % higher than the check Jiushi 20 in Gansu corn regional test which was conducted in 2006,2007. The result showed that Jinkai 1 was the highly resistant varieties of colored leaves, the anti-maize dwarf mosaic virus, silk smut and stem rot, also indicated that seed crude protein, lysine, ash, crude fat, starch, water and bulk density were respectively 9.81% ,0. 32%,1.21%,3.50% ,76.81%,11.00% ,703.8 g/L. Jinkai 1 was suitable for promote planting the region that≥10℃ the effective accumulated temperature over 2 650 ℃.