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短穂飼料用イネ品種の効率的種子生産方法の検討
https://doi.org/10.24514/00001822
https://doi.org/10.24514/00001822f1aa3f4d-431c-4b8d-a2ad-bf7ec174ec2c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nwarc_report_No16p13-27p.pdf (2.0 MB)
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| Item type | 紀要論文01 / Departmental Bulletin Original Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-22 | |||||
| タイトル | ||||||
| タイトル | 短穂飼料用イネ品種の効率的種子生産方法の検討 | |||||
| タイトル | ||||||
| タイトル | Studies on Optimum Cultivation Methods for Seed Production of Rice Cultivars with Short Panicles | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 飼料用イネ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 短穂 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | たちすずか | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | たちあやか | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 直交表 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 種子生産 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | sp1 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | WCS | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.24514/00001822 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
藤本, 寛
× 藤本, 寛× 松下, 景× 中込, 弘二× 森, 伸介 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 'Tachisuzuka' and 'Tachiayaka', which are promising new rice cultivars with short panicles, have been developed for whole crop silage (WCS) use. They offer improved lodging resistance, harvesting period, straw yield, sugar content, silage fermentation and feed value due to their morphological characteristics, which result from their short panicle (sp1) mutant gene. However, there is a problem in that their seed production is poor. We investigated a way of increasing the seed yields of these cultivars by optimizing their cultivation methods. In this study, we applied factorial design or fractional factorial design to the design and analysis of experiments whose aim was to evaluate the factors affecting seed production in short-panicle cultivars. We investigated four (in 2010) and five (in 2011) factors including planting time, planting density and fertilization methods, each at two levels, for two (in 2010) and four (in 2011) cultivars. The panicles of 'Tachisuzuka' varied greatly in size according to the treatment. In the short-panicle cultivars, there was a strong positive correlation between seed yield and panicle size, and no correlation between seed yield and panicle number. This is in contrast to wild-type panicle cultivars, which usually exhibit a positive correlation between yield and panicle number. Factors related to planting time and fertilization method had a strong effect on seed yield with 'Tachisuzuka'. For a high yield with 'Tachisuzuka', late planting and no nitrogen application until topdressing is applied at the panicle formation stage are recommended. The expected seed yield with the treatment was 409g/m^2. We obtained a seed yield of 420kg/10a for 'Tachisuzuka' using the optimized cultivation method in a demonstration field in 2011. On the other hand, we never achieved a satisfactory result with 'Tachiayaka'. 'Tachiayaka' is another short-panicle cultivar with an sp1 mutant gene, but with different heading characteristics from 'Tachisuzuka'. Further studies are required to obtain a comprehensive understanding of the function of the sp1 gene in rice cultivars with short panicles. | |||||
| 書誌情報 |
近畿中国四国農業研究センター研究報告 en : BULLETIN of THE NATIONAL AGRICULTURAL RESEARCH CENTER for WESTERN REGION 巻 16, p. 13-27, 発行日 2016-03-31 |
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| 出版者 | ||||||
| 出版者 | 国立研究開発法人 農業・食品産業技術総合研究機構 近畿中国四国農業研究センター | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1347-1244 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.24514/00001822 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
