超甜玉米新品种甘甜3号选育报告

Breeding Report on Sweet Corn Variety Gantian 3

超甜玉米新品种甘甜3号是以自育系J甜26为母本,自育系J甜01为父本选育的杂交种。2008—2009年在广东省甜玉米区域试验中,甘甜3号2a鲜穗平均折合产量15 875.1 kg/hm2,比对照品种增产11.05%。甘甜3号株高194.5 cm,幼苗长势强,成株株型半紧凑,茎秆较粗,持绿性好,抗倒伏,从出苗到采收期平均生育期70d。单穗鲜重322.5 g,千粒重355.5 g,出籽率70.98%,一级果穗率83.5%。果穗筒型,籽粒黄色。乳熟期籽粒可溶性糖含量为23.46%,适口性较好。抗纹枯病、茎腐病、大斑病、小斑病。适于广东及华南地区同类生态区春秋种植。

Gantian 3 is a newly bred sweet corn variety by parental combination of inbred line J-tian 26 with J-tian 01. The average fresh ear yield of the variety reaches 15 875.1 kg/hm^2,which is 11.05% higher than that of the checkin in the regional test conducted in the period 2008-2009 in Guangdong province . The results shows that plant height is 194.5 cm,with strong seedlings growth,semi-compacted adult plant stem,robust plant growth,good green-holding capacties,well developed root system,and reliable resistance to lodging,the average growth duration is 70 days from germination to harvesting . The results indicates that the weight of single ear is 322.5 g,thousand kernec weight 355.5 g,seed production rate 70.98%,fist-classear rate 83.5%,with tube like shape and yellow grain. The soluble sugar content in grain is 23.46% in milky stage with good palatability. It is resistant to sheath blight,stem rot disease,large blotch,leaf blight. It is stuitable to be grown in spring and autumn in Guangdong and other regions of southern China with similar ecological conditions.