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＜departmental bulletin paper＞
Comparison of Fertilizer Responsiveness between Rice Cultivars in Warmer Area and Japonica-Indica Hybrid Rice : Ⅱ. Characteristics of Dry Matter Production and Accumulated Carbohydrate at Heading

Creator
Creator Name
片山, 勝之
Katayama, Katsuyuki
Affiliation
Affiliation Name
農水省熱帯農業研究センター
Tropical Agriculture Research Center, Ministry of Agriculture, Forestry and Fisheries
Creator Name
宋, 祥甫
Song, Xiang Fu
Affiliation
Affiliation Name
中国水稲研究所
China National Rice Research Institute
Author PID
L001267
Creator Name
広田, 修
Hirota, Osamu
Affiliation
Affiliation Name
九州大学熱帯農学研究センター
Institute of Tropical Agriculture, Kyushu University
Author PID
L000798
Creator Name
県, 和一
Agata, Waichi
Affiliation
Affiliation Name
九州大学農学部栽培学教室
Laboratory of Crop Husbandry, Faculty of Agriculture, Kyushu University
Author PID
L002112
Creator Name
武田, 友四郎
Takeda, Tomoshirou
Affiliation
Affiliation Name
九州大学農学部栽培学教室
Laboratory of Crop Husbandry, Faculty of Agriculture, Kyusyu University
Language
Japanese
Publisher
九州大學農學部
Faculty of Agriculture, Kyushu University
Date
1990-12
Source Title
Science bulletin of the Faculty of Agriculture, Kyushu University
Vol
45
Issue
1/2
First Page
95
Last Page
98
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/23349
Related DOI
九州大學農學部學藝雜誌 || 45(1/2) || p95-98
Science bulletin of the Faculty of Agriculture, Kyushu University || 45(1/2) || p95-98
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大學農學部學藝雜誌 || 45(1/2) || p95-98
Science bulletin of the Faculty of Agriculture, Kyushu University || 45(1/2) || p95-98
http://www.agr.kyushu-u.ac.jp/
Relation
九州大學農學部學藝雜誌 || 45(1/2) || p95-98
Science bulletin of the Faculty of Agriculture, Kyushu University || 45(1/2) || p95-98
http://www.agr.kyushu-u.ac.jp/

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Details

Record ID
23349
Peer-Reviewed
Unrefereed
Subject Terms
水稲品種
日印交雑品種
耐肥性
アケノホシ
ニシホマレ
水原258号
乾物生産特性
出穂期蓄積炭水化物
IR24
ISSN
0368-6264
NCID
AN0005519X
Notes
To elucidate fertilizer responsiveness of rice cultivars as Akenohoshi and Nishihomare which were bred to obtain many grains in number per unit area, the comparisons of characteristics of dry matter production and accumulated carbohydrate at heading between these and 9 cultivars including IR24 and Suweon 258, which had high fertilizer responsiveness, were carried out on three nitrogen levels (8, 14, 22 kg/10a). The results were as follows; 1) The high yield of Suweon 258 and IR24 on heavy fertilizer was attributed to both the large total dry weight at harvesting and harvest index. The low yield of Nishihomare and Akenohoshi was attributed to low harvest index and small total dry weight, respectively. 2) The dry matter production of Suweon 258 and IR24 after heading on heavy fertilizer was higher than on standard fertilizer, but that of Akenohoshi and Nishihomare was opposit. 3) Accumulated carbohydrate amount of Suweon 258, IR24, and Nishihomare at heading was more than that of Akenohoshi. 4) The low percentage of ripened grains of Akenohoshi was attributed to small amount of accumulated carbohydrate per sink size.
アケノホシとニシホマレの耐肥性を明らかにするために,多肥多収品種であるIR24および水原258号を含めた9品種を供試し3段階の窒素施肥量(8,14,22kg/10a)条件下で乾物生産特性および出穂期の蓄積炭水化物量を比較検討した.結果は以下の通りである.1)多量施肥区において水原258号とIR24の収量は多かったが,これは,収穫期における全重と収穫指数の両者が大きかったからであった.一方,アケノホシとニシホマレは,多量施肥区の水原258号とIR24に比べて,ニシホマレで収穫指数がアケノホシで収穫期の全重が低いことによって減収した.2)標準施肥区よりも多量施肥区において出穂期以降の乾物生産(△W)は,水原258号とIR24で増大したが,アケノホシとニシホマレは逆に減少した.3)水原258号,IR24およびニシホマレの出穂期の蓄積炭水化物量は,アケノホシに比べて多かった.4)アケノホシの登熟歩合が低かったのは,単位シンクサイズ当りの蓄積炭水化物量が少なかったことによると思われる.
Created Date 2012.07.25
Modified Date 2022.11.11

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