Title

超高產水稻劍葉的高效光合特性

Translated Titles

High Efficiency Photosynthetic Characteristics in Flag Leaves of Super High-yielding Rice

Authors

歐志英(Zhi-Ying Ou);彭長連(Chang-Lian Peng);陽成偉(Chen-Wei Yang);林桂珠(Gui-Zhu Lin);段俊(Jun Duan);溫學(Xue Wen)

Key Words

高產水稻 ; 劍葉 ; 光合能力 ; 光碳失衡 ; 光抑制 ; Super high-yielding rice ; Flag leaves ; Photosynthetic capacity ; Photo-carbon imbalance ; Photoinhibition

PublicationName

熱帶亞熱帶植物學報

Volume or Term/Year and Month of Publication

11卷1期(2003 / 03 / 01)

Page #

1 - 6

Content Language

簡體中文

Chinese Abstract

以多年來大面積推廣的雜交水稻汕優63為對照,研究了超高產雜交水稻兩優培九的光合生理特性。結果表明:在生殖生長期兩優培九劍葉具有較高的葉綠素含量、Fv/Fo、Fv/Fm、qP、Φ(下標 i)和Rubisco含量,表明它有相對較高的光能吸收、轉化和利用的能力;且兩優培九的qN較汕優63大,1-qP/qN比它小,說明它比對照品種更耐光抑制:兩個品種在劍葉衰老過程中都發生了光碳失衡,但兩優培九光碳失衡狀態較輕;這些可能是超高產水稻兩優培九高產的重要原因。

English Abstract

Two hybrid rice cultivars, super high-yielding Liangyoupeijiu (Pei'ai 64S×9311) and high-yielding Shanyou 63 (as control) grown in the field, were used to investigate the photosynthetic characteristics of high production during flag leaves development. It was shown that the contents of chlorophyll and Rubisco, the values of Fv/Fo, Fv/Fm, qP and Φ(subscript i) in flag leaves of cv. Liangyoupeijiu were higher than those of the control, indicating that the former had greater capacity and higher efficiency for light energy absorption, transformation and utilization. The value of qN was higher and 1-qP/qN was lower in Liangyoupeijiu than in Shanyou 63, showing that the former was more tolerant to photoinhibition. Photo-carbon imbalance appeared in both cultivars during senescence of flag leaves, but which was less apparent in cv. Liangyoupeijiu. These beneficial factors in photosynthesis in cv. Liangyoupeijiu might be of importance in high production of super high-yielding rice.

Topic Category 生物農學 > 植物學
生物農學 > 生物環境與多樣性