トウモロコシの葉面気孔抵抗及び蒸散速度に及ぼす水ストレスの影響   :   Influence of Water Stress on Stomatal Resistance and Transpiration Rate at Leaf Surface of Maize 

作成者 于, 貴瑞, 中山, 敬一, 呂, 厚荃, 何, 偉生
作成者 (ヨミ) ナカヤマ, ケイイチ
作成者の別表記 Yu, Gui-Rui, Nakayama, Keiichi, Lu, Hou-Quan, He, Wei-Sheng
日本十進分類法 (NDC) 620
内容 Using pot experiments in 1993 and 1994, we explored influence of water stress on stomatal resistance and transpiration rate at leaf surface of maize. The results are summarized as follows: (1) Diurnal variations of transpiration rate and stomatal resistance were in different patterns for maize planted in the pots by different water treatments. It was found that the less the soil moisture content, the larger the stomatal resistance, and the smaller the transpiration rate. (2) For developing model of stomatal response to water stress, we examined the relationship between stomatal resistance (R_<st>, s cm^<-1>) and soil water content on mass basis (θ_s, %) at an arbitrary time during daytime, but it could not be specified. However, the relationship between daytime averages of stomatal resistance (R_<st, m>, s cm^<-1>) and soil water content on mass basis (θ_<s, m>, %) could be specified. (3) Stomatal conductance (G_<st>/G_<st, m>) normalized by daytime average (G_<st, m>, cms^<-1>) is depending on Q_p/Q_<p, m> and θ_s/θ_<s, m>, where Q_p is photosynthetic photon flux density (μ mol m^<-2>s^<-1>) and Q_<p, m> is the daytime average of Q_p. (4) Stomatal conductance (G_<st>) at an arbitrary time during daytime could be estimated by a combination model. This model was based on multiplying the model for estimating G_<st, m> by the model for estimating G_<st>/G_<st, m> Thus, a model of transpiration rate of maize is presented based on the model for estimating G_<st>.
公開者 千葉大学園芸学部
コンテンツの種類 紀要論文 Departmental Bulletin Paper
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 0069-3227
NCID AN00142658
掲載誌情報 千葉大学園芸学部学術報告 Vol.51 page.173-178 (19970328)
言語 日本語
著者版フラグ publisher

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