摘要
本试验探讨了不同类型甜菜品种在不同生育时期的光合特性，结果表明：在甜菜生育前期，高糖型品种的ＲｕＢＰ羧化酶活性较高，到生育中、后期丰产型品种的ＲｕＢＰ发化酶活性则表现较高的趋势；叶绿素含量亦呈这一趋势；在甜菜繁茂期丰产型品种的光合速率最高，糖分积累期高糖型品种光合速率高于其它处理；不同类型品种的光合速率每天中午均有降低现象，高糖型品种生育前期“午休”现象弱于其它类型品种。
Photosynthetic characteristic of different types of sugarbeet varieties was approachedduring different growing peroids. The resuIts showed that the activity of RuBPs carboxylaseof Z typ;was higher at early growing peroid of sugarbeet,and which of E type have highertendency at the middle and later growing peroids。 The amount of chlorophyll has this trendalso ,the photosynthetic rate of E type was the highest at flourishing peroid and which of Ztype was higher than other treatments at accumulating peroid,the photosynthetic rate of different types were all decrease at noon。 Photosynthesis rest at noon of Z type was weaker thanother types of varieties at early growing peroid.
出处
《中国糖料》
1996年第4期18-21,共4页
Sugar Crops of China
关键词
甜菜
光合速率
RuBP
羧化酶
Sugarbeet Photosynthetic rate RuBP carboxylase
