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Naked Waxy Barley Cultivar "Jinjuchal" with High Whiteness after Cooking and High β-glucan Content  

Lee, Mi-Ja (Department of Rice and Winter Cereal Crop, NICS, RDA)
Seo, Jae-Hwan (Department of Rice and Winter Cereal Crop, NICS, RDA)
Kim, Yang-Kil (Department of Rice and Winter Cereal Crop, NICS, RDA)
Park, Jong-Chul (Department of Rice and Winter Cereal Crop, NICS, RDA)
Choi, Jae-Seong (Department of Rice and Winter Cereal Crop, NICS, RDA)
Park, Tae-Il (Department of Rice and Winter Cereal Crop, NICS, RDA)
Hyun, Jong-Nae (Department of Rice and Winter Cereal Crop, NICS, RDA)
Kim, Jung-Gon (National Institute of Agricultural Biotechnology, RDA)
Publication Information
Korean Journal of Breeding Science / v.41, no.3, 2009 , pp. 299-305 More about this Journal
Abstract
A new six-rowed naked barley cultivar "Jinjuchal" with high whiteness after cooking and high $\beta$-glucan content was developed from the cross between 'Jinmichapssalbori' with high winter hardiness, lodging tolerance, grain whiteness and pearling yield, and 'Suwon 333' with waxy endosperm by the Honam Agricultural Research Institute (HARI), NICS, RDA in 2007. An elite line, SB962002G-B-B-B-84-4 was selected in 2002 and designated as 'Iksan 79' It showed good agronomic performance in the regional yield trials (RYT) from 2005 to 2007 and was released with the name of "Jinjuchal" possessing high whiteness and low proanthocyanidin waxy endosperm. The average heading and maturing dates of "Jinjuchal" were April 27 and June 1 in paddy field, which were same and one day later than those of the check cultivar 'Saechalssalbori' respectively. The new cultivar, "Jinjuchal" had 81 cm of culm length that was 1cm longer than that of 'Saechalssalbori' and 4.9 cm of spike length. It showed 673 spikes per $m^2$, 56 grains per spike, 27.0 g of 1,000-grain weight, and 752 g of test weight. "Jinjuchal" showed stronger hardiness and better resistance to powdery mildew and BaYMV (Barley yellow mosaic virus) than those of the check cultivar, 'Saechalssalbori' It showed higher $\beta$-glucan content(8.4%) and water absorption rate than those of the check cultivar, 'Saechalssalbori' Its average yield of the pearled grain in the regional yield trial was 3.79 MT/ha in upland, and 3.73 MT/ha in paddy field, which were 1% lower and 3% higher than those of the check cultivar, respectively. Total phenol and proanthocyanidin contents were 4.2 and 0.2 mg/g, respectively. This cultivar is suitable for the area of the daily minimum temperature above $-6^{\circ}C$ in January in Korean peninsula.
Keywords
Barley; Naked barley; Waxy endosperm; Whiteness; Proanthocyanidin;
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