果蔬型甜玉米新品种京科甜191的选育

A New Fruit-vegetable Type of Sweet Corn Cultivar —‘Jingketian 191'

京科甜191是以超甜玉米自交系T68为母本,自交系T6302为父本,通过杂交选育而成的果蔬型甜玉米品种。果穗筒型,穗长19.0 cm,穗粗5.3 cm,穗行数16~18行,行粒数36~38粒,粒行整齐。籽粒亮黄色,外观漂亮。平均每667 m2鲜果穗产量900 kg左右,出籽率约67.4%。鲜籽粒含粗蛋白2.98%,粗脂肪1.37%,总糖6.7%,口感甜脆清爽,皮薄无渣。播种至采收平均85.4 d(天),适宜京津冀及类似生态区种植。

‘Jingketian 191’is a new sweet corn cultivar of fruit-vegetable type,developed by crossing super sweet corn inbred line‘T68’as female parent and inbred line‘T6302’as male parent.Its ear is of cylindric type,19.0 cm in length and 5.3 cm in diameter.There are 16-18 rows in one ear and 36-38 kernels per row.Its kernel is bright yellow in color with beautiful appearance.It can yield about 13.5 t·hm-2 and the kernel rate is about 67.4%.The contents of crude protein,crude fat and total sugar in fresh kernels were 2.98%,1.37%and 6.7%,respectively.It tastes sweet and crisp.It has thin pericarp without residue.It takes averagely 85.4 days from sowing to harvest.It is suitable for planting in Beijing-Tianjin-Hebei metropolitan region and areas with similar ecological conditions.