A new mid maturing and high-eating quality japonica rice variety ‘Chamjinmi’ derived from Korea native resources
작성자 : 김성종
조회수 : 35
등록일 : 2024.02.13
작물육종과 이창민
'Chamjinmi' is a mid-maturing rice variety that can be harvested faster than mid-late maturing varieties and also exhibits good the rate of milling, and the taste. From the analysis of the glossiness and taste of cooked rice of Korean native rice resources, we selected the promising resource 'Hoengseongaengmi3', which had better rice eating quality compared to Korean (Ilpum) and Japanese (Hitomebore) varieties. 'Jeonju 654', which was bred by crossing 'Hwayeong' and 'Hoengseongaengmi 3', was developed through pedigree breeding, yield trials, and regional adaptability test, and 'Jeonju 654' was released as 'Chamjinmi' in 2022. The average heading date of 'Chamjinmi' for ordinary planting and late planting for double cropping was August 10th and August 20th, which were 4 days earlier than that of the check variety 'Nampyeong'. The milled rice yield of 'Chamjinmi' was 5.67 MT/ha for ordinary planting (103% of 'Nampyeong') and 5.64 MT/ha for late planting for double cropping (96% of 'Nampyeong'). 'Chamjinmi' had a culm length of 78 cm, a panicle length of 21 cm and 13 panicles per plant. The brown rice type of 'Chamjinmi' was slightly bigger than 'Nampyeong', with a 1,000 grain weight of 23.1 g and a length/width ratio of 1.84. The milled rice of 'Chamjinmi' was translucent, with a protein content of 5.9% and an amylose content of 17.2% (1.3% lower than 'Nampyeong'). The release of 'Chamjinmi' is anticipated to contribute a beneficial mid-maturing rice variety that can be employed across diverse cropping systems in paddy fields, effectively enhancing farm work efficiency.
대한민국 공식 전자정부 누리집입니다.
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