‘Bbareumi’, an Extremely Early-Maturing Rice Cultivar Adaptable for Early Transplanting, in the Chungnam Plain Area

Abstract

Bbareumi' is an extremely early maturing rice cultivar with the fastest harvesting time in Korea. To develop 'Bbareumi', 'Joami' with good quality in Chungnam plain area and 'Hokuto' originating from Japan with the fastest heading date among genetic resources were used as breeding materials. After crossing them in 2010, the 'Bbareumi' cultivar was developed using the pedigree method. A yield trial was conducted from 2015 to 2016, and a local adaptability test was conducted from 2016 to 2018. The heading date of 'Bbareumi' was seven days earlier than 'Jinbuolbyeo', showing an average of June 23 rd , and it could be harvested from the end of July to the beginning of August when transplanted early in Chungnam plain area. 'Bbareumi' had a short culm length of 63.3 cm and panicle length of 19.3 cm. Milled rice yield was approximately 4.87 MT/ha and the percentage of head rice was 89.2% under normal fertilizer condition. 'Bbareumi' will be used as a premium rice brand with newly harvested rice before 'Chooseok', Korean Thanksgiving Day and is expected to contribute to the revitalization of double-cropping in the Chungnam plain area (Registration No. 8130).

Effect of Transplanting Date on Agronomic and Grain Quality Traits Using Early Maturing Rice Varieties

“…Rice cultivation is a significant contributor to global methane emissions, Methane is produced by the anaerobic (oxygen-free) decomposition of organic matter in the soil during rice cultivation. Therefore, reducing methane emissions from rice cultivation is an important goal in the context of climate change, and researchers are actively working to find innovative solutions to this problem [16][17][18][19][20] and one strategy for reducing methane emissions from rice cultivation is to use early maturing rice varieties with a short growing period [21]. By using early maturing rice varieties, farmers can also potentially harvest their crops earlier in the season, which can give them more flexibility in terms of double cropping and may also help to reduce the overall greenhouse gas emissions associated.…”

Effect of Transplanting Date on Agronomic and Grain Quality Traits Using Early-Maturing Rice Varieties

“…These properties are currently used as an indirect method of estimating the texture and overall eating quality of rice. Reducing methane emissions from rice cultivation is an important goal in response to climate change and growing early-maturing rice varieties is considered one strategy for reducing methane emissions from rice cultivation due to their short growing periods [17][18][19][20][21]. However, earlymaturing rice varieties in Korea have been bred to grow in mid-mountain and mountainous regions due to their adaptability to cooler temperatures and shorter growing seasons in these regions.…”