甜菜の光合成に関する研究 : 第2報 葉位別光合成能力ならびに単葉の特性
スポンサーリンク
概要
- 論文の詳細を見る
The abilities and some characters in photosynthesis and respiration of single leaf of sugar beet plant were studied with leaves of different positions. The intensity of photosynthesis was measured under a condition of almost constant CO_2 concentration of about 300 ppm. The results are summarized as follows. (1) Total photosynthetic and respiratory abilities of top parts of a plant increase at a little lower rate than that of the increment of total leaf area and total dry weight, respectively. (2) Photosynthetic ability per unit leaf area is highest in leaves of middle position, and is lower in leaves of upper and lower positions. On the other hand, respiratory ability per unit leaf dry weight is highest in leaves of upper position, and is lowest in leaves of lower position. As for the photosynthetic ability per leaf, the leaves of middle position have the highest photosynthetic ability because of their large leaf area as well as their high photosynthetic ability per unit leaf area. The respiratory ability in the leaves of middle position is higher than that of any other leaves because of their heavier dry weight. (3) The temperature coefficient (Q_<10>) of respiration is about 1.8 at the temperature ranging from 20℃ to 35℃. This value is a little smaller at the temperature ranging from 10℃ to 20℃. (4) Photosynthesis is hardly affected by temperature ranging from 10℃ to 35℃, which is an ordinary temperature condition in culture field of sugar beet plant. (5) Light response curve of photosynthesis is saturation curve, having a saturation point at the light intensity of about 30 Klx. (6) These characters of leaves mentioned in (3), (4), and (5), are not appreciably different from leaves of different positions and of different growth stages of plant during about five months after sowing.
- 日本作物学会の論文
- 1965-06-15
著者
関連論文
- 甜葉の光合成に関する研究 : 第4報 葉の表裏両面の照度と光合成との関係 (第143回講演会)
- 甜菜の光合成に関する研究 : 第3報 群落光合成 (第139回講演会)
- 甜菜の光合成に関する研究 : 第3報 群落光合成
- 甜菜の光合成に関する研究 : 第2報 葉位別光合成能力ならびに単葉の特性
- 甜菜の光合成に関する研究 : 第1報 切断葉による単葉光合成の測定法について
- 甜菜の糖生産に及ぼす温度の影響に関する研究 : 第1報 生育に及ぼす温度の影響
- 甜菜の糖生産過程ならびに糖収量におよぼす温度の影響 : 第1報 温度が乾物生産と生育の傾向におよぼす影響 (第132回 講演会)
- 水稲の初期生育に関する研究 (第131回 講演会)