카로티노이드 함량이 높고 식미가 우수한 찰옥수수 ‘황금맛찰’

‘Hwanggeummatchal’, a Single Cross Hybrid Waxy Corn with High Carotenoid Content and Good Eating Quality

‘Hwanggeummatchal’, a yellow waxy corn hybrid obtained by crossing inbred ‘KY37’ and ‘KY29’, was developed by the maizebreeding team at the National Institute of Crop Science (NICS), RDA, Korea, in 2017. The number of days to silking of ‘Hwanggeummatchal’was 69 days after planting, 2 days earlier than ‘Ilmichal’ (a control variety). Plant height of ‘Hwanggeummatchal’ was 205 cm, lower thanthat of the control, and ear height ratio was 49%, which was lower than that of ‘Ilmichal’. Lodging resistance of ‘Hwanggeummatchal’ wassimilar to ‘Ilmichal’. The fresh ear yields were 6,389 ears in 10 a. The carotenoid content of ‘Hwanggeummatchal’ was 16.4 μg 100 g-1fresh weight, which was much higher than that of ‘Ilmichal’. The pericarp thickness was 41 μm. The sensory evaluation value was 5.7,and the flavor was excellent. The flowering period of its parental lines was well matched, and seed production was best at a planting ratioof maternal and paternal lines, 3:1. ‘Hwanggeummatchal’ is suitable to the whole country, except for Jeju-do. Seeds of ‘Hwanggeummatchal’must be renewed annually because it is a single cross hybrid. If this hybrid is cultivated under high-density conditions, the ear size andthe ratio of kernel set length to ear length will be lower than that of standard cultivation. Pest control should be performed for this hybridbecause it is susceptible to corn borer (Registration No. 8136).