鲜食玉米‘天正玉甜糯1号’的选育及推广

Breeding and Promotion of A New Fresh Corn Variety‘Tianzhengyu Tiannuo 1’

‘天正玉甜糯1号’是以糯玉米自交系‘LS-糯62’为母本,以同时含有纯合隐性甜质基因和纯合隐性糯质基因的双隐性自交系‘LSY02’为父本,通过杂交手段培育出的鲜食玉米新品种,与目前推广的糯玉米品种‘西星白糯2’号和甜玉米品种‘鲁甜105’进行品种比对试验,结果发现‘天正玉甜糯1号’展现出更好的抗病性和高产性,新品种的推广能取得更好的经济、社会效益,2020年试种的5个区域中,‘天正玉甜糯1号’的平均产量16827 kg/hm2,增幅4.8%~11.6%;2021年试种的5个区域中,‘天正玉甜糯1号’的平均产量17430 kg/hm2,增幅5.4%~9.4%。

‘Tianzhengyu Tiannuo 1’was derived from a waxy maize inbred line‘LS-nuo 62’,and a double-recessive inbred line‘LSY02’containing both a homozygous recessive sweet gene and a homozygous recessive waxy gene was used as the male parent,a new variety of fresh-eating maize bred by crossing.Compared with waxy maize variety‘Xixing Bainuo 2’and sweet maize variety‘Lutian 105’,‘Tianzhengyu Tiannuo 1’showed better disease resistance and high yield,the extension of new varieties can achieve better economic,social and ecological benefits.In the five regions tested in 2020,the average yield of‘Tianzhengyu Tiannuo 1’was 16827 kg/hm2,an increase of 4.8%to 11.6%.In the five regions tested in 2021,the average yield of‘Tianzhengyu Tiannuo 1’was 17430 kg/hm2,an increase of 5.4%to 9.4%.