New two-rowed malting barley [Hordeum vulgare] cultivar 'Sachiho Golden'
2007
Kato, T.(Tochigi-ken. Agricultural Experiment Station, Utsunomiya (Japan)) | Nagamine, T. | Kumekawa, T. | Yamaguchi, E. | Oono, K. | Watanabe, H. | Oozeki, M. | Sekiwa, T. | Watanabe, N. | Taniguchi, Y. | Yamaguchi, M. | Ohtsuka, M. | Oda, S. | Tsunemi, J. | Sotome, T. | Kashima, N. | Nakata, S. | Kawada, N. | Ishikawa, N. | Kodama, M. | Nozawa, S. | Fukuda, E. | Satou, K. | Soutome, K. | Tokue, M. | Miyagawa, S. | Kaminaga, A.
Sachiho Golden, derived from the cross Daikei R4224 / Kanto Nijo 29, is an early maturing, short height, two-rowed malting barley. It was registered as a recommended cultivar of Tochigi Prefecture and as 'Nijo Omugi Norin 22' in 2005 because of high yield potential and excellent quality. Sachiho Golden is highly resistant to barley yellow mosaic virus type I, II and III by a single recessive gene of rym3, and also has powdery mildew resistance. In a number of trials during 1999-2004, Sachiho Golden had significantly higher weight of the thousand-grain and percentage of plump grain than the standard cultivar Mikamo Golden, therefore the plump grain yield was 20% higher than that of Mikamo Golden. The grain quality was slightly better than that of Mikamo Golden, although the occurrence of hull-cracked grains was slightly higher than that of Mikamo Golden. Sachiho Golden was the most excellent in malting quality among the cultivars tested, having superior malt extract and diastatic power per total nitrogen. The crude protein content of malt was low, while the soluble nitrogen was similar to or slightly higher than that of Mikamo Golden, resulting in an increase in Kolbach index compared to Mikamo Golden. However, the index was lower than that of Sukai Golden, of which protein tended to be excessively degraded during malting process. The wort beta-glucan content was low, and the apparent final attenuation was similar to that of Mikamo Golden. Based on trials performed at several prefectural experiment stations, Sachiho Golden is adapted to the flat area from Kanto to Kyushu, Japan.
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