Yield and Lodging Resistance of 'Tachiayaka', a Novel Rice Cultivar with Short Panicles for Whole-Crop Silage
Yield and Lodging Resistance of 'Tachiayaka', a Novel Rice Cultivar with Short Panicles for Whole-Crop Silage
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DOI：
10.1626/pps.17.202
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发表时间：
2014-04-01
影响因子：
2.5
通讯作者：
Watanabe, Hajime
中科院分区：
文献类型：
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作者：
Matsushita, Kei;Ishii, Takuro;Watanabe, Hajime
'立家香'是水稻新品种。具有短的圆锥花序，适合用于全作物青贮。它是从“Hoshiaoba”与“Chugoku 146”（“Hoshiaoba”）x“Gokutansui（00 kosen 11”）的F-1植株的两次回交获得的大量后代中选出的。在横跨日本北陆至中国地区的大面积多地点试验中，“Tachiayaka”的糙米产量与“Tachisuzuka”相当，“Tachisuzuka”是一种短穗型品种，牛的消化率高。整株产量和成熟度与星青叶相当。这些结果表明，'Tachiayaka'适合在日本广泛种植。与抗倒性相关的性状，包括倒伏指数，“立屋香”均优于“星青叶”，表现为上级。抗倒伏能力强，可在倒伏频繁的地区栽培。
'Tachiayaka' is a novel cultivar of rice (Oryza sativa L.) with short panicles that is suitable for use in whole-crop silage. It was selected from bulked progeny obtained from two backcrosses of 'Hoshiaoba' to F-1 plants of 'Chugoku 146' ('Hoshiaoba') x 'Gokutansui (00kosen11)'. The unhulled rice yield of 'Tachiayaka' was comparable to that of 'Tachisuzuka', a short-panicle cultivar with high digestibility in cattle, in multi-location trials over a wide area spanning the Hokuriku to Chugoku regions in Japan. The whole-crop yield and the maturity of 'Tachiayaka' were comparable to those of 'Hoshiaoba'. These findings indicated the suitability of 'Tachiayaka' for cultivation across a wide area of Japan. The characters associated with lodging resistance in 'Tachiayaka', including lodging index, were superior to those of 'Hoshiaoba'. The high lodging resistance of 'Tachiayaka' will enable its cultivation in regions where lodging occurs frequently.