福岡県農業総合試験場24（2005）　pp29−33

　

ビール大麦新品種‘しゅんれい’の早播適応性

　

塚�ｱ守啓^*・山口　修・内村要介・馬場孝秀¹⁾・甲斐浩臣²⁾・古庄雅彦

（農産部）

　

　ビール大麦‘しゅんれい’の早播適応性を明らかにする目的で，11月上旬（極早播），中旬（早播），下旬（標準播）の3播種期と収量，外観品質および麦芽品質との関係を検討した。その結果，早播は標準播に比べて，収量が標準比115と多く，検査等級は同程度（2等）で，被害粒である側面裂皮粒，凸腹粒，剥皮粒の発生率はそれぞれ2.2，0.2，0.8％で少なく，麦芽品質は総合評点で6.5点上回り優れた。極早播では，収量は同程度で，麦芽品質は優れたが，容積重が軽くなり，整粒歩合は低く，外観品質および検査等級（等外上）は劣った。このことから，‘しゅんれい’は現在のビール大麦の播種適期を10日早めて播種しても高品質安定生産が可能であることが明らかになった。

［キーワード：しゅんれい，側面裂皮粒，播種適期，早播適応性，ビール大麦］

　

Early Seeding Adaptability in New Malting Barley Cultivar‘SHUNREI’ TSUKAZAKI Morihiro , Osamu YAMAGUCHI, Yosuke UCHIMURA, Takahide BABA, Hiroomi KAI and Masahiko FURUSHO(Fukuoka Agric. Res. Cent., Chikushino, Fukuoka 818-8549, Japan)Bull. Fukuoka Agric. Res. Cent. 24: (2005)

　We investigated that the relationship Between three seeding times (the first ten days (Early Seeding), second ten days (Middle Seeding)and last ten days of November(Standard Seeding))and yield ,outward appearance quality and malting quality. As a result, Middle Seeding had a higher yield (standard ratio 115)and malting quality(total grade +6.5), a similar inspection grade (grade 2) than Standard Seeding, and had low occurrence of damaged grain (occurrence ratio of hull-cracked grain: 2.2% , occurrence ratio of grain with ventral swelling : 0.2% , occurrence ratio of grain with peeling : 0.8% ). Early Seeding had a similar yield, a higher malting quality, a lower volume weight and plump grain rate , and grain appearance and inspection grade deteriorated than Standard Seeding . These results showed that optimum seeding period of‘SHUNREI’was second ten days of November (Middle Seeding), and could advance the seeding time about 10 days in comparison with recommended seeding time of presently employed in malting barley production.