水稲の登熟過程における穂重増加を支配する稲体要因の解析　第２報　穎花の同化産物受容効率に及ぼす出穂期貯蔵炭水化物の役割

• 角 明夫

• 箱山 晋

• 翁 仁憲

• 縣 和一

• 武田 友四郎

書誌事項

タイトル別名

• Analysis of Plant Characteristics Determining Ear Weight Increase during the Ripening Period in Rice (Oryza sativa L.). II. The role of the reserved carbohydrate at heading stage upon the receptive efficiency of assimilation products in spikelets.
• スイトウ ノ トウジュク カテイ ニ オケル スイジュウ ゾウカ オ シハイス

抄録

The large variations of sink capacity of spikelets (S_W), the assimilate reserved in the culm/leaf sheath of rice plant until the heading stage (C) and the assimilate produced during the ripening period (ΔW) were promoted by using several varieties from panicle number to panicle weight types, and by combining top dressing, cutting leaf and thinning treatments. From the above experiments, the influencing forms of ΔW/S_W, and C/S_W upon the ratio of ear weight increase (ΔE) to S_W (ΔE/S_W) were discussed. The percentage of fertile grains (1-p; p, the percentage of sterile grains) was connected more closely with C/S_W than with ΔW/S_W. C seemed to function as buffer stock to maintain the sink activity of spikelets, when ΔW is not equal to the demand of spikelets for assimilation products (sink potential). ΔW/S_W contributed chiefly to the increase in ΔE/S_W through ΔE per fertile S_W (ΔE/[(1-p)·S_W]). From the above results, it was estimated that not only ΔW but also C is very important to improve ΔE/S_W.

収録刊行物

• 日本作物学会紀事

  日本作物学会紀事 65 (2), 214-221, 1996

  日本作物学会

キーワード

• 緩衝在庫
• 出穂期貯蔵炭水化物含量
• 出穂後乾物生産量
• シンクポテンシャル
• 水稲
• 稔実歩合
• 穂重増加量
• 籾殻重

詳細情報

• CRID: 1390282679258659712
• NII論文ID: 10008229311
• NII論文ID: 110001734653
• NII書誌ID: AN00189888
• DOI: 10.1626/jcs.65.214
• ISSN: 13490990
• ISSN: 00111848
• ISSN: http://id.crossref.org/issn/00111848
• NDL書誌ID: 3976746
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3976746
• Web Site: http://www.jstage.jst.go.jp/article/jcs1927/65/2/65_2_214/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可