水稲の個体群光合成および呼吸測定値からの太陽エネルギー転換効率算出の試み(その1) : 個体群呼吸光合成比の生育に伴う変化

島根大学農学部研究報告 Volume 21 Page 1-9 published_at 1987-12-21
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d0030021n001.pdf 1.2 MB エンバーゴ : 2001-10-08
Title
水稲の個体群光合成および呼吸測定値からの太陽エネルギー転換効率算出の試み(その1) : 個体群呼吸光合成比の生育に伴う変化
Title
The Efficiency for Solar Energy Conversion in Rice Population estimsted from Crop Photosynthesis and Respiration under Field Conditions(I) : The Ratio of Respiration to Photosynthesis during the Ripening Stage
Title Transcription
スイトウ ノ コタイ グン コウゴウセイ オヨビ コキュウ ソクテイチ カラノ タイヨウ エネルギー テンカン コウリツ サンシュツ ノ ココロミ ソノ1 コタイ グン コキュウ コウゴウセイ ヒ ノ セイイク ニ トモナウ ヘンカ
Creator
Imaki Tadashi
Ishizuka Hitoshi
Hayakawa Junji
Source Title
島根大学農学部研究報告
Bulletin of the Faculty of Agriculture, Shimane University
Volume 21
Start Page 1
End Page 9
Journal Identifire
ISSN 0370940X
Descriptions
Using four extremely early-maturing and three early or medium-maturing varieties, crop photosyntesis and respiration in the field were measured 20-30 days intervals from 50-20 days before to 20-40 days after heading. The temperature coefficient of respiration(Q_<10>) was linearly increased from 1.21 to 2.52 according to the growth stage. Crop respiration under the growing temperature was changed curvilinearly and showed its maximum value at about 10 days before to 10 days after the heading time, which was slightly later than gross photosynthesis under thelightintensity of10or06ca1/cm2 The ratio of respiration to photosynthesis (R/P ratio) was increased associated with the growth stage, and in the ripening stage, the R/P ratio of extremely early-maturing varieties which were matured under high temperature, was about 10 to 30% higher than that of early or medium maturing varieties.
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根大学農学部
Shimane University, Faculty of Agriculture
Date of Issued 1987-12-21
Access Rights open access
Relation
[NCID] AN00108015