A New Sweet Corn Hybrid with Good Eating Quality and High Sugar Content, ‘Guseulok’

Abstract

A new single cross hybrid, 'Guseulok', is a bicolor sweet corn (Zea mays L.) developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2009. This hybrid, which has a good eating quality and high sugar content, was produced by crossing two inbred lines, KSE19 and KSE7. KSE19 was the seed parent and KSE7 was the pollen parent of 'Guseulok'. Ear length and diameter of 'Guseulok' were 18.0 cm and 4.6 cm, respectively. The ratio of kernel set length/ear length was 90%, similar with that of a check hybrid, 'Golden Cross Bantam70' (GCB70). However, the free sugar content was 20.5%, higher than 'GCB70', 14.0%. It is resistant to Bipolaris maydis (Southern corn leaf blight) and its lodging resistance is excellent. The yields of 'Guseulok' in fresh ear weight were similar with those of GCB70 in regional yield trials (RYT) from 2007 to 2009. Seed production of this hybrid has gone well due to good match during crossing between the seed and pollen parents. It is adaptable to the whole country. Plant variety protection right of 'Guseulok' was registered in January 2013, and its grant number is 4322.

Digital Image Analysis of Low-Temperature Responses in Sweet Corn Hybrid Seedlings

“…It has become popular as a high-income crop owing to the Westernization of eating habits. The cultivation area is mainly located in the warmer southern region [2,3]. Early planting of sweet corn in this area ensures relatively high price competitiveness due to early shipments to the fresh market [2].…”

“…The cultivation area is mainly located in the warmer southern region [2,3]. Early planting of sweet corn in this area ensures relatively high price competitiveness due to early shipments to the fresh market [2]. On the other hand, early planting may result in cold stress during the germination and seedling stages [4].…”

Effect of Planting Dates on Growth and Yield of Late-planted Sweet Corn (Zea mays L.) to Sell Fresh Ears in the Autumn

“…). 최근 농촌진흥청 국립식량과학원에서는 우리나라에서 널리 재배되고 있는 su 인자를 가진 외국품종 '골든크로스반탐 70 (GCB70)' 보다 당도가 높은 se 인자를 가지면서 도복에도 강하고 초당옥수수보다 발아율이 높고 씹는 맛이 좋은 '구슬 옥'과 '고당옥'을 개발하였다(이 등 2012;Lee et al, 2013).…”