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쌀 외관이 양호하고 도열병에 강한 극조생 벼 ‘백일미’.
- Source :
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Korean Journal of Breeding Science . 2019, Vol. 51 Issue 2, p151-159. 9p. - Publication Year :
- 2019
-
Abstract
- ‘Baegilmi’ is an extremely early maturing rice variety that can be harvested within 100 days after transplanting, and also exhibits strong blast resistance and good grain appearance. From a mutant population of ‘Koshihikari’ treated with ethyl methanesulfonate, a promising line, ‘Suweon 559’, was selected through pedigree breeding and yield trials, and subsequently registered as ‘Baegilmi’. According to the 3-year (2012–2014) regional adaptability tests, the average heading date of Baegilmi in ordinary planting was July 14th, which was 23 and 9 days earlier than that of the check varieties ‘Hwaseong’ and ‘Odae’, respectively. The milled rice yield of ‘Baegilmi’ was 4.53 MT/ha in ordinary planting (83% and 98% of ‘Hwaseong’ and ‘Odae’, respectively). ‘Baegilmi’ had a culm length of 75 cm (10 cm shorter than ‘Hwaseong’), a panicle length of 21 cm (similar to ‘Hwaseong’), and 12 panicles per plant (two fewer than ‘Hwaseong’). The brown rice of ‘Baegilmi’ was slightly more slender than ‘Hwaseong’, with a 1,000 grain weight of 20.6 g and length/width ratio of 1.92. The milled rice of ‘Baegilmi’ was translucent, with a protein content of 8.4% (1.7% higher than ‘Hwaseong’) and an amylose content of 18.6% (similar to ‘Hwaseong’). ‘Baegilmi’ exhibited strong blast resistance, but was susceptible to bacterial blight, viral diseases, and insect pests. The release of ‘Baegilmi’ is expected to provide a useful early-maturing rice variety that can be used in diverse cropping systems in paddy fields (Registration No. 6805). [ABSTRACT FROM AUTHOR]
- Subjects :
- *RICE varieties
*RICE
*CROPPING systems
*RICE yields
*PADDY fields
*BROWN rice
Subjects
Details
- Language :
- Korean
- ISSN :
- 02503360
- Volume :
- 51
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Korean Journal of Breeding Science
- Publication Type :
- Academic Journal
- Accession number :
- 137087860
- Full Text :
- https://doi.org/10.9787/KJBS.2019.51.2.151